Hafnium
- HAFNIUM
- 7440-58-6
- HF
- Celtium
- Hafnium, elemental
- Create:2005-03-26
- Modify:2025-01-18
- HAFNIUM
- 7440-58-6
- HF
- Celtium
- Hafnium, elemental
- hafnio
- HSDB 552
- EINECS 231-166-4
- UNII-X71938L1DO
- X71938L1DO
- MFCD00011032
- 72Hf
- Hafnium foil
- DTXSID8064698
- CHEBI:33343
- EC 231-166-4
- Hafnium metal
- Elemental hafnium
- Hafnium Standard: Hf @ 1000 microg/mL in 5% HCl
- UN1326
- UN2545
- Hafnium Standard: Hf @ 10000 microg/mL in 5% HCl
- Hafnium Standard: Hf @ 10000 microg/mL in 4% HNO3, 2% HF
- hafnium atom
- Hafnium powder
- Hafnium standard
- Hafnium, lump, 10 mm max. lump size, weight 100 g, purity 97.%
- Hafnium, lump, 10 mm max. lump size, weight 20 g, purity 97.%
- Hafnium, lump, 10 mm max. lump size, weight 50 g, purity 97.%
- Hafnium powder, dry
- HAFNIUM [HSDB]
- HAFNIUM [MI]
- Hafnium crystal bar chips
- Hafnium powder, -325 mesh
- DTXCID5047663
- AKOS015902742
- Hafnium wire, 0.5mm (0.02in) dia
- Hafnium wire, 1.0mm (0.04in) dia
- Hafnium wire, 2.0mm (0.08in) dia
- Hafnium rod, 6.35mm (0.25in) dia
- Hafnium wire, 0.25mm (0.01in) dia
- Hafnium foil, 0.75mm (0.03in) thick
- Hafnium wire, 1.57mm (0.0618in) dia
- Hafnium foil, 0.025mm (0.001in) thick
- NS00082611
- Q1119
- Hafnium pieces, 3-12mm (0.12-0.47in)
- Hafnium - Hf @ 1000 microg/mL in 5% HCl
- Hafnium foil, 1.0mm (0.04in) thick, annealed
- Hafnium foil, 0.25mm (0.01in) thick, annealed
- Hafnium, foil, 4mm disks, thickness 0.01mm, 97%
- Hafnium, foil, 4mm disks, thickness 0.02mm, 97%
- Hafnium, foil, 6mm disks, thickness 0.01mm, 97%
- Hafnium, foil, 6mm disks, thickness 0.02mm, 97%
- Hafnium, foil, 8mm disks, thickness 0.01mm, 97%
- Hafnium, foil, 8mm disks, thickness 0.02mm, 97%
- Hafnium, foil, 10mm disks, thickness 0.005mm, 97%
- Hafnium, foil, 10mm disks, thickness 0.006mm, 97%
- Hafnium, foil, 10mm disks, thickness 0.007mm, 97%
- Hafnium, foil, 10mm disks, thickness 0.008mm, 97%
- Hafnium, foil, 10mm disks, thickness 0.009mm, 97%
- Hafnium, foil, 10mm disks, thickness 0.015mm, 97%
- Hafnium, foil, 10mm disks, thickness 0.01mm, 97%
- Hafnium, foil, 10mm disks, thickness 0.02mm, 97%
- Hafnium, foil, 15mm disks, thickness 0.005mm, 97%
- Hafnium, foil, 15mm disks, thickness 0.006mm, 97%
- Hafnium, foil, 15mm disks, thickness 0.007mm, 97%
- Hafnium, foil, 15mm disks, thickness 0.008mm, 97%
- Hafnium, foil, 15mm disks, thickness 0.009mm, 97%
- Hafnium, foil, 15mm disks, thickness 0.015mm, 97%
- Hafnium, foil, 15mm disks, thickness 0.01mm, 97%
- Hafnium, foil, 15mm disks, thickness 0.02mm, 97%
- Hafnium, foil, 25mm disks, thickness 0.009mm, 97%
- Hafnium, foil, 4mm disks, thickness 0.005mm, 97%
- Hafnium, foil, 4mm disks, thickness 0.006mm, 97%
- Hafnium, foil, 4mm disks, thickness 0.007mm, 97%
- Hafnium, foil, 4mm disks, thickness 0.008mm, 97%
- Hafnium, foil, 4mm disks, thickness 0.009mm, 97%
- Hafnium, foil, 4mm disks, thickness 0.0125mm, 97%
- Hafnium, foil, 4mm disks, thickness 0.015mm, 97%
- Hafnium, foil, 6mm disks, thickness 0.005mm, 97%
- Hafnium, foil, 6mm disks, thickness 0.006mm, 97%
- Hafnium, foil, 6mm disks, thickness 0.007mm, 97%
- Hafnium, foil, 6mm disks, thickness 0.008mm, 97%
- Hafnium, foil, 6mm disks, thickness 0.009mm, 97%
- Hafnium, foil, 6mm disks, thickness 0.0125mm, 97%
- Hafnium, foil, 6mm disks, thickness 0.015mm, 97%
- Hafnium, foil, 8mm disks, thickness 0.005mm, 97%
- Hafnium, foil, 8mm disks, thickness 0.006mm, 97%
- Hafnium, foil, 8mm disks, thickness 0.007mm, 97%
- Hafnium, foil, 8mm disks, thickness 0.008mm, 97%
- Hafnium, foil, 8mm disks, thickness 0.009mm, 97%
- Hafnium, foil, 8mm disks, thickness 0.0125mm, 97%
- Hafnium, foil, 8mm disks, thickness 0.015mm, 97%
- Hafnium, rod, 50mm, diameter 5.0mm, as drawn, 97%
- Hafnium, foil, 10mm disks, thickness 0.0125mm, 97%
- Hafnium, foil, 15mm disks, thickness 0.0125mm, 97%
- Hafnium, rod, 100mm, diameter 1.6mm, as drawn, 97%
- Hafnium, rod, 100mm, diameter 2.0mm, as drawn, 97%
- Hafnium, rod, 100mm, diameter 5.0mm, as drawn, 97%
- Hafnium, rod, 200mm, diameter 1.6mm, as drawn, 97%
- Hafnium, rod, 200mm, diameter 2.0mm, as drawn, 97%
- Hafnium, rod, 200mm, diameter 5.0mm, as drawn, 97%
- Hafnium, rod, 500mm, diameter 1.6mm, as drawn, 97%
- Hafnium, rod, 500mm, diameter 2.0mm, as drawn, 97%
- Hafnium powder, dry [UN2545] [Spontaneously combustible]
- Hafnium Standard: Hf @ 1000 ug/mL in 2% HNO3/0.5%HF
- Hafnium, foil, 25x25mm, thickness 0.5mm, annealed, 97%
- Hafnium, foil, 25x25mm, thickness 1.0mm, annealed, 97%
- Hafnium, foil, 4mm disks, thickness 0.5mm, annealed, 97%
- Hafnium, foil, 50x50mm, thickness 0.5mm, annealed, 97%
- Hafnium, foil, 50x50mm, thickness 1.0mm, annealed, 97%
- Hafnium, foil, 6mm disks, thickness 0.5mm, annealed, 97%
- Hafnium, foil, 8mm disks, thickness 0.5mm, annealed, 97%
- Hafnium, rod, 1000mm, diameter 1.6mm, as drawn, 97%
- Hafnium, rod, 1000mm, diameter 2.0mm, as drawn, 97%
- Hafnium, turnings, crystal bar, 99.7% trace metals basis
- Hafnium, wire reel, 1m, diameter 0.25mm, as drawn, 97%
- Hafnium, wire reel, 1m, diameter 0.5mm, as drawn, 97%
- Hafnium, wire reel, 1m, diameter 1.0mm, as drawn, 97%
- Hafnium, wire reel, 2m, diameter 0.25mm, as drawn, 97%
- Hafnium, wire reel, 2m, diameter 0.5mm, as drawn, 97%
- Hafnium, wire reel, 2m, diameter 1.0mm, as drawn, 97%
- Hafnium, foil, 100x100mm, thickness 0.14mm, annealed, 97%
- Hafnium, foil, 100x100mm, thickness 0.25mm, annealed, 97%
- Hafnium, foil, 100x100mm, thickness 0.5mm, annealed, 97%
- Hafnium, foil, 10mm disks, thickness 0.025mm, annealed, 97%
- Hafnium, foil, 10mm disks, thickness 0.075mm, annealed, 97%
- Hafnium, foil, 10mm disks, thickness 0.125mm, annealed, 97%
- Hafnium, foil, 10mm disks, thickness 0.14mm, annealed, 97%
- Hafnium, foil, 10mm disks, thickness 0.25mm, annealed, 97%
- Hafnium, foil, 10mm disks, thickness 0.5mm, annealed, 97%
- Hafnium, foil, 150x150mm, thickness 0.14mm, annealed, 97%
- Hafnium, foil, 15mm disks, thickness 0.025mm, annealed, 97%
- Hafnium, foil, 15mm disks, thickness 0.075mm, annealed, 97%
- Hafnium, foil, 15mm disks, thickness 0.125mm, annealed, 97%
- Hafnium, foil, 15mm disks, thickness 0.14mm, annealed, 97%
- Hafnium, foil, 15mm disks, thickness 0.25mm, annealed, 97%
- Hafnium, foil, 15mm disks, thickness 0.5mm, annealed, 97%
- Hafnium, foil, 25mm disks, thickness 0.025mm, annealed, 97%
- Hafnium, foil, 25mm disks, thickness 0.075mm, annealed, 97%
- Hafnium, foil, 25mm disks, thickness 0.125mm, annealed, 97%
- Hafnium, foil, 25mm disks, thickness 0.14mm, annealed, 97%
- Hafnium, foil, 25x25mm, thickness 0.125mm, annealed, 97%
- Hafnium, foil, 25x25mm, thickness 0.14mm, annealed, 97%
- Hafnium, foil, 25x25mm, thickness 0.25mm, annealed, 97%
- Hafnium, foil, 4mm disks, thickness 0.025mm, annealed, 97%
- Hafnium, foil, 4mm disks, thickness 0.075mm, annealed, 97%
- Hafnium, foil, 4mm disks, thickness 0.125mm, annealed, 97%
- Hafnium, foil, 4mm disks, thickness 0.14mm, annealed, 97%
- Hafnium, foil, 4mm disks, thickness 0.25mm, annealed, 97%
- Hafnium, foil, 50x50mm, thickness 0.125mm, annealed, 97%
- Hafnium, foil, 50x50mm, thickness 0.14mm, annealed, 97%
- Hafnium, foil, 50x50mm, thickness 0.25mm, annealed, 97%
- Hafnium, foil, 6mm disks, thickness 0.025mm, annealed, 97%
- Hafnium, foil, 6mm disks, thickness 0.075mm, annealed, 97%
- Hafnium, foil, 6mm disks, thickness 0.125mm, annealed, 97%
- Hafnium, foil, 6mm disks, thickness 0.14mm, annealed, 97%
- Hafnium, foil, 6mm disks, thickness 0.25mm, annealed, 97%
- Hafnium, foil, 8mm disks, thickness 0.025mm, annealed, 97%
- Hafnium, foil, 8mm disks, thickness 0.075mm, annealed, 97%
- Hafnium, foil, 8mm disks, thickness 0.125mm, annealed, 97%
- Hafnium, foil, 8mm disks, thickness 0.14mm, annealed, 97%
- Hafnium, foil, 8mm disks, thickness 0.25mm, annealed, 97%
- Hafnium, wire reel, 0.1m, diameter 0.125mm, as drawn, 97%
- Hafnium, wire reel, 0.1m, diameter 0.25mm, as drawn, 97%
- Hafnium, wire reel, 0.1m, diameter 0.5mm, as drawn, 97%
- Hafnium, wire reel, 0.1m, diameter 1.0mm, as drawn, 97%
- Hafnium, wire reel, 0.2m, diameter 0.125mm, as drawn, 97%
- Hafnium, wire reel, 0.2m, diameter 0.25mm, as drawn, 97%
- Hafnium, wire reel, 0.2m, diameter 0.5mm, as drawn, 97%
- Hafnium, wire reel, 0.2m, diameter 1.0mm, as drawn, 97%
- Hafnium, wire reel, 0.5m, diameter 0.125mm, as drawn, 97%
- Hafnium, wire reel, 0.5m, diameter 0.25mm, as drawn, 97%
- Hafnium, wire reel, 0.5m, diameter 0.5mm, as drawn, 97%
- Hafnium, wire reel, 0.5m, diameter 1.0mm, as drawn, 97%
- Hafnium, wire reel, 1m, diameter 0.125mm, as drawn, 97%
- Hafnium, wire reel, 2m, diameter 0.125mm, as drawn, 97%
- Hafnium, foil, 100x100mm, thickness 0.125mm, annealed, 97%
- Hafnium, foil, 150x150mm, thickness 0.125mm, annealed, 97%
- Hafnium, foil, light tested, 100x100mm, thickness 0.015mm, 97%
- Hafnium, foil, light tested, 100x100mm, thickness 0.02mm, 97%
- Hafnium, foil, light tested, 25x25mm, thickness 0.005mm, 97%
- Hafnium, foil, light tested, 25x25mm, thickness 0.009mm, 97%
- Hafnium, foil, light tested, 25x25mm, thickness 0.0125mm, 97%
- Hafnium, foil, light tested, 25x25mm, thickness 0.015mm, 97%
- Hafnium, foil, light tested, 25x25mm, thickness 0.01mm, 97%
- Hafnium, foil, light tested, 25x25mm, thickness 0.02mm, 97%
- Hafnium, foil, light tested, 50x50mm, thickness 0.009mm, 97%
- Hafnium, foil, light tested, 50x50mm, thickness 0.0125mm, 97%
- Hafnium, foil, light tested, 50x50mm, thickness 0.015mm, 97%
- Hafnium, foil, light tested, 50x50mm, thickness 0.01mm, 97%
- Hafnium, foil, light tested, 50x50mm, thickness 0.02mm, 97%
- Hafnium, lump, 10 mm max. lump size, weight 10 g, purity 97.%
- Hafnium, foil, light tested, 100x100mm, thickness 0.0125mm, 97%
- Hafnium, foil, light tested, 25x25mm, thickness 0.025mm, annealed, 97%
- Hafnium, foil, light tested, 25x25mm, thickness 0.075mm, annealed, 97%
- Hafnium, foil, light tested, 50x50mm, thickness 0.025mm, annealed, 97%
- Hafnium, foil, light tested, 50x50mm, thickness 0.075mm, annealed, 97%
- Hafnium, foil, not light tested, 100x100mm, thickness 0.009mm, 97%
- Hafnium, foil, not light tested, 100x100mm, thickness 0.0125mm, 97%
- Hafnium, foil, not light tested, 100x100mm, thickness 0.01mm, 97%
- Hafnium, foil, not light tested, 25x25mm, thickness 0.003mm, 97%
- Hafnium, foil, not light tested, 25x25mm, thickness 0.004mm, 97%
- Hafnium, foil, not light tested, 25x25mm, thickness 0.005mm, 97%
- Hafnium, foil, not light tested, 25x25mm, thickness 0.006mm, 97%
- Hafnium, foil, not light tested, 25x25mm, thickness 0.007mm, 97%
- Hafnium, foil, not light tested, 25x25mm, thickness 0.008mm, 97%
- Hafnium, foil, not light tested, 50x50mm, thickness 0.004mm, 97%
- Hafnium, foil, not light tested, 50x50mm, thickness 0.005mm, 97%
- Hafnium, foil, not light tested, 50x50mm, thickness 0.006mm, 97%
- Hafnium, foil, not light tested, 50x50mm, thickness 0.007mm, 97%
- Hafnium, foil, not light tested, 50x50mm, thickness 0.008mm, 97%
- Hafnium, powder, max. particle size 45 micron, weight 20 g, purity 95.+%
- Hafnium, powder, max. particle size 45 micron, weight 50 g, purity 95.+%
- Hafnium metal powder, -325 mesh, dry, 99.5% purity (metals basis) Zr: < 0.5%
- Hafnium, foil, light tested, 100x100mm, thickness 0.025mm, annealed, 97%
- Hafnium, foil, light tested, 100x100mm, thickness 0.075mm, annealed, 97%
- Hafnium, foil, light tested, 150x150mm, thickness 0.025mm, annealed, 97%
- Hafnium, foil, light tested, 150x150mm, thickness 0.075mm, annealed, 97%
- Hafnium, foil, not light tested, 150x150mm, thickness 0.025mm, annealed, 97%
- Hafnium, powder, 45 max. part. size (micron), weight 10 g, purity 95.0+%
- Hafnium, sponge, +20 mesh, 99.5% trace metals basis (purity excludes ~2% zirconium)
- Hafnium, wire, diam. 1.0 mm, >=99.9% trace metals basis (purity excludes ~2% zirconium)
- Hafnium powder, wetted with not <25% water (a visible excess of water must be present) (a) mechanically produced, particle size <53 microns, (b) chemically produced, particle size <840 microns
- Hafnium powder, wetted with not <25% water (a visible excess of water must be present) (a) mechanically produced, particle size <53 microns, (b) chemically produced, particle size <840 microns [UN1326] [Flammable solid]
- Hafnium, foil, thickness 0.02 mm, 99.5% trace metals basis (purity excludes ~2% zirconium)
- Hafnium, microfoil, disks, 10mm, thinness 0.1mum, specific density 118.7mug/cm2, permanent mylar 3.5mum support, 97%
- electron density of states
- dielectric constant
- electromagnetic induction
- optical coefficient
- crystal structure
- fusion temperature
- Debye frequency
- deformation parameter
- dielectricity
- diffusion
- enthalpy
- radiation
- electron-phonon interaction
- electrode potential
- isothermal section
- Q value
- Gibbs energy
- Lorenz number
- positional coordinate
- alpha-particle emission cross section
- hole conductivity
- absorption coefficient
- spectral factor
- work function
- temperature-composition section
- orbital angular momentum
- space group
- enthalpy change
- Moessbauer effect
- phase diagram
- unit cell parameter
- melting temperature
- charge transfer coefficient
- heat capacity
- neutron binding energy
- dissociation energy
- electronic structure
- half-width
- spin-wave properties
- sound velocity
- reflectance
- photoemission spectroscopy
- excitation energy
- transition enthalpy
- band gap energy
- LEED
- atomic radius
- structural transition temperature
- surface anisotropy
- electron energy level
- sound propagation
- spin
- neutron resonance energy
- plasma edge
- magnetocrystalline anisotropy coefficient
- isomer shift
- high frequency properties
- Curie temperature
- antiferromagnetic Neel temperature
- magnetostriction
- magnetic phase diagram
- sound absorption
- phase transition
- magnetic structure
- branching ratio
- lineshape
- elastic stiffness
- self-diffusion
- diffusion of impurities
- Moessbauer quadrupole effect
- film energy band
- nuclear spin
- boiling point
- magnetic moment
- band structure
- formation entropy
- condensation
- electronic surface structure
- elastic coefficients
- exchange current density
- X-ray diffraction
- interplanar spacing
- surface structure
- magnetic susceptibility
- natural abundance
- cross section
- electron spin resonance
- coordination distance
- photoemission
- atomic environment
- atomic mass
- CEF
- cell voltage
- transition entropy
- liquidus surface
- formation enthalpy
- pressure coefficient
- atomic defect properties
- thermopower
- nucleon separation energy
- corrosion
- Knight shift
- electric conductivity
- density
- surface state
- volume coefficient
- resonance cross-section
- superconductivity
- polarizability
- crystal structure type
- melting transition
- ionization coefficient
- magnetic properties
- diamagnetic susceptibility
- Fermi energy
- formation energy
- energy level
- formula unit
- unit cell axes
- optical spectroscopy
- electron state
- compressibility
- latent heat
- nuclear properties
- heat of sublimation
- refractive index
- transition pressure
- elasticity
- radiative width
- entropy
- surface energy
- relaxation
- parity
- thermal expansion
- electrical resistivity
- hardness
- composition
- solidus surface
- thermal conductivity
- unit cell
- phonon dispersion
- Drude parameter
- nuclear magnetic resonance
- scanning tunneling microscopy
- resonance width
- Activated charcoal; aluminum; american ginseng; antimony; arsenic triiodide; avena sativa flowering top; barium; barium carbonate; beryllium; bismuth; boron; bromine; calcium; cerium; cesium; chloride ion; chromium; cobalt; copper; dysprosium; erbium; europium; fluoride ion; gadolinium; gallium; germanium; ginkgo; gold; hafnium; holmium; indium; iodine; iridium; iron; lanthanum; lithium; lutetium; magnesium; manganese; molybdenum; neodymium; nickel; niobium; osmium; palladium; phosphorus; platinum; potassium; praseodymium; rhenium; rhodium; rubidium; ruthenium; samarium; scandium; selenium; silicon; silicon dioxide; silver; sodium; strontium; sulfur; tantalum; tellurium; terbium; thallium; thorium; thulium; thyroid; tin; titanium; tungsten; vanadium; ytterbium; yttrium; zinc; zirconium (component of)
- Activated charcoal; aluminum; antimony; arsenic; arsenic trioxide; avena sativa flowering top; barium; berberis vulgaris root bark; beryllium; boron; bromine; cadmium; calcium; cerium; cesium; chloride ion; chromium; cobalt; copper; dysprosium; erbium; europium; fluoride ion; frangula alnus bark; gadolinium; gallium; gold; hafnium; holmium; hydrogen; indium; iodine; iridium; iron; lead; lithium; lutetium; lycopodium clavatum spore; magnesium; mercury; molybdenum; neodymium; niobium; nitrogen; osmium; palladium; phytolacca americana root; platinum; potassium; praseodymium; rhodium; rubidium; ruthenium; samarium; scandium; selenium; silicon; silver; sodium; sodium chloride; solidago virgaurea flowering top; strontium; strychnos nux-vomica seed; sulfur; tantalum; tellurium; terbium; thorium; tin; titanium; trifolium pratense flower; vanadium; ytterbium; yttrium; zinc; zirconium (component of)
- Hafnium dihydride (annotation moved to)
Metal Preparation and Pouring [Category: Foundry]
Shakeout, Cleaning, and Finishing [Category: Foundry]
Metal Machining [Category: Heat or Machine]
Semiconductor Manufacturing [Category: Industry]
- Other (specify)
- Alloys
2019: <1,000,000 lb
2018: <1,000,000 lb
2017: <1,000,000 lb
2016: <1,000,000 lb
- Petrochemical Manufacturing
- Primary Metal Manufacturing
- All Other Chemical Product and Preparation Manufacturing
- Fabricated Metal Product Manufacturing
- Computer and Electronic Product Manufacturing
- Utilities
- Transportation Equipment Manufacturing
P210, P222, P231, P233, P280, P302+P335+P334, and P370+P378
(The corresponding statement to each P-code can be found at the GHS Classification page.)
Aggregated GHS information provided per 339 reports by companies from 9 notifications to the ECHA C&L Inventory.
Reported as not meeting GHS hazard criteria per 106 of 339 reports by companies. For more detailed information, please visit ECHA C&L website.
There are 8 notifications provided by 233 of 339 reports by companies with hazard statement code(s).
Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown.
Excerpt from ERG Guide 135 [Substances - Spontaneously Combustible]:
Fire will produce irritating, corrosive and/or toxic gases. Inhalation of decomposition products may cause severe injury or death. Contact with substance may cause severe burns to skin and eyes. Runoff from fire control or dilution water may cause environmental contamination. CAUTION: Pentaborane (UN1380) is highly toxic and may be fatal if inhaled, ingested or absorbed through skin. (ERG, 2024)
Excerpt from ERG Guide 170 [Metals (Powders, Dusts, Shavings, Borings, Turnings, or Cuttings, etc.)]:
Oxides from metallic fires are a severe health hazard. Inhalation or contact with substance or decomposition products may cause severe injury or death. Fire may produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may cause environmental contamination. (ERG, 2024)
· Fire will produce irritating, corrosive and/or toxic gases.
· Inhalation of decomposition products may cause severe injury or death.
· Contact with substance may cause severe burns to skin and eyes.
· Runoff from fire control or dilution water may cause environmental contamination.
CAUTION: Pentaborane (UN1380) is highly toxic and may be fatal if inhaled, ingested or absorbed through skin.
· Oxides from metallic fires are a severe health hazard.
· Inhalation or contact with substance or decomposition products may cause severe injury or death.
· Fire may produce irritating, corrosive and/or toxic gases.
· Runoff from fire control or dilution water may cause environmental contamination.
Excerpt from ERG Guide 135 [Substances - Spontaneously Combustible]:
Flammable/combustible material. May ignite on contact with moist air or moisture. May burn rapidly with flare-burning effect. Some react vigorously or explosively on contact with water. Some may decompose explosively when heated or involved in a fire. May re-ignite after fire is extinguished. Runoff may create fire or explosion hazard. Containers may explode when heated. (ERG, 2024)
Excerpt from ERG Guide 170 [Metals (Powders, Dusts, Shavings, Borings, Turnings, or Cuttings, etc.)]:
May react violently or explosively on contact with water. Some are transported in flammable liquids. May be ignited by friction, heat, sparks or flames. Some of these materials will burn with intense heat. Dusts or fumes may form explosive mixtures in air. Containers may explode when heated. May re-ignite after fire is extinguished. (ERG, 2024)
· Flammable/combustible material.
· May ignite on contact with moist air or moisture.
· May burn rapidly with flare-burning effect.
· Some react vigorously or explosively on contact with water.
· Some may decompose explosively when heated or involved in a fire.
· May re-ignite after fire is extinguished.
· Runoff may create fire or explosion hazard.
· Containers may explode when heated.
· May react violently or explosively on contact with water.
· Some are transported in flammable liquids.
· May be ignited by friction, heat, sparks or flames.
· Some of these materials will burn with intense heat.
· Dusts or fumes may form explosive mixtures in air.
· Containers may explode when heated.
· May re-ignite after fire is extinguished.
Excerpt from NIOSH Pocket Guide for Hafnium:
Eye: IRRIGATE IMMEDIATELY - If this chemical contacts the eyes, immediately wash (irrigate) the eyes with large amounts of water, occasionally lifting the lower and upper lids. Get medical attention immediately.
Skin: SOAP WASH PROMPTLY - If this chemical contacts the skin, promptly wash the contaminated skin with soap and water. If this chemical penetrates the clothing, promptly remove the clothing and wash the skin with soap and water. Get medical attention promptly.
Breathing: RESPIRATORY SUPPORT - If a person breathes large amounts of this chemical, move the exposed person to fresh air at once. If breathing has stopped, perform artificial respiration. Keep the affected person warm and at rest. Get medical attention as soon as possible.
Swallow: MEDICAL ATTENTION IMMEDIATELY - If this chemical has been swallowed, get medical attention immediately. (NIOSH, 2024)
Excerpt from ERG Guide 170 [Metals (Powders, Dusts, Shavings, Borings, Turnings, or Cuttings, etc.)]:
Refer to the "General First Aid" section. (ERG, 2024)
General First Aid:
· Call 911 or emergency medical service.
· Ensure that medical personnel are aware of the material(s) involved, take precautions to protect themselves and avoid contamination.
· Move victim to fresh air if it can be done safely.
· Administer oxygen if breathing is difficult.
· If victim is not breathing:
-- DO NOT perform mouth-to-mouth resuscitation; the victim may have ingestedor inhaled the substance.
-- If equipped and pulse detected, wash face and mouth, then give artificial respiration using a proper respiratory medical device (bag-valve mask, pocket mask equipped with a one-way valve or other device).
-- If no pulse detected or no respiratory medical device available, provide continuouscompressions. Conduct a pulse check every two minutes or monitor for any signs of spontaneous respirations.
· Remove and isolate contaminated clothing and shoes.
· For minor skin contact, avoid spreading material on unaffected skin.
· In case of contact with substance, remove immediately by flushing skin or eyes with running water for at least 20 minutes.
· For severe burns, immediate medical attention is required.
· Effects of exposure (inhalation, ingestion, or skin contact) to substance may be delayed.
· Keep victim calm and warm.
· Keep victim under observation.
· For further assistance, contact your local Poison Control Center.
· Note: Basic Life Support (BLS) and Advanced Life Support (ALS) should be done by trained professionals.
In Canada, an Emergency Response Assistance Plan (ERAP) may be required for this product. Please consult the shipping paper and/or the "ERAP" section.
(See general first aid procedures)
Eye: Irrigate immediately - If this chemical contacts the eyes, immediately wash (irrigate) the eyes with large amounts of water, occasionally lifting the lower and upper lids. Get medical attention immediately.
Skin: Soap wash promptly - If this chemical contacts the skin, promptly wash the contaminated skin with soap and water. If this chemical penetrates the clothing, promptly remove the clothing and wash the skin with soap and water. Get medical attention promptly.
Breathing: Respiratory support
Swallow: Medical attention immediately - If this chemical has been swallowed, get medical attention immediately.
Excerpt from ERG Guide 135 [Substances - Spontaneously Combustible]:
DO NOT USE WATER, CO2 OR FOAM ON MATERIAL ITSELF. Some of these materials may react violently with water. CAUTION: For Xanthates, UN3342 and for Dithionite (Hydrosulfite/Hydrosulphite) UN1384, UN1923 and UN1929, USE FLOODING AMOUNTS OF WATER for SMALL AND LARGE fires to stop the reaction. Smothering will not work for these materials, they do not need air to burn.
SMALL FIRE: Dry chemical, soda ash, lime or DRY sand, EXCEPT for UN1384, UN1923, UN1929 and UN3342.
LARGE FIRE: DRY sand, dry chemical, soda ash or lime EXCEPT for UN1384, UN1923, UN1929 and UN3342, or withdraw from area and let fire burn. CAUTION: UN3342 when flooded with water will continue to evolve flammable Carbon disulfide/Carbon disulphide vapors. If it can be done safely, move undamaged containers away from the area around the fire.
FIRE INVOLVING TANKS, RAIL TANK CARS OR HIGHWAY TANKS: Fight fire from maximum distance or use unmanned master stream devices or monitor nozzles. Do not get water inside containers or in contact with substance. Cool containers with flooding quantities of water until well after fire is out. Withdraw immediately in case of rising sound from venting safety devices or discoloration of tank. ALWAYS stay away from tanks in direct contact with flames. (ERG, 2024)
Excerpt from ERG Guide 170 [Metals (Powders, Dusts, Shavings, Borings, Turnings, or Cuttings, etc.)]:
DO NOT USE WATER, FOAM OR CO2. Dousing metallic fires with water will generate hydrogen gas, an extremely dangerous explosion hazard, particularly if fire is in a confined environment (i.e., building, cargo hold, etc.). Use DRY sand, graphite powder, dry sodium chloride-based extinguishers, or class D extinguishers. Confining and smothering metal fires is preferable rather than applying water. If it can be done safely, move undamaged containers away from the area around the fire.
FIRE INVOLVING TANKS, RAIL TANK CARS OR HIGHWAY TANKS: If impossible to extinguish, protect surroundings and allow fire to burn itself out. (ERG, 2024)
· CALL 911. Then call emergency response telephone number on shipping paper. If shipping paper not available or no answer, refer to appropriate telephone number listed on the inside back cover.
· Stay upwind, uphill and/or upstream.
· Keep unauthorized personnel away.
· ELIMINATE all ignition sources (no smoking, flares, sparks or flames) from immediate area.
· Do not touch or walk through spilled material.
· Stop leak if you can do it without risk.
Small Spill
CAUTION: For spills of Xanthates, UN3342 and for Dithionite (Hydrosulfite/Hydrosulphite), UN1384, UN1923 and UN1929, dissolve in 5 parts water and collect for proper disposal.
CAUTION: UN3342 when flooded with water will continue to evolve flammable Carbon disulfide/Carbon disulphide vapors.
· Cover with DRY earth, DRY sand or other non-combustible material followed with plastic sheet to minimize spreading or contact with rain.
· Use clean, non-sparking tools to collect material and place it into loosely covered plastic containers for later disposal.
· Prevent entry into waterways, sewers, basements or confined areas.
· ELIMINATE all ignition sources (no smoking, flares, sparks or flames) from immediate area.
· Do not touch or walk through spilled material.
· Stop leak if you can do it without risk.
· Prevent entry into waterways, sewers, basements or confined areas.
Excerpt from ERG Guide 135 [Substances - Spontaneously Combustible]:
IMMEDIATE PRECAUTIONARY MEASURE: Isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters (75 feet) for solids.
SPILL: Increase the immediate precautionary measure distance, in the downwind direction, as necessary.
FIRE: If tank, rail tank car or highway tank is involved in a fire, ISOLATE for 800 meters (1/2 mile) in all directions; also, consider initial evacuation for 800 meters (1/2 mile) in all directions. (ERG, 2024)
Excerpt from ERG Guide 170 [Metals (Powders, Dusts, Shavings, Borings, Turnings, or Cuttings, etc.)]:
IMMEDIATE PRECAUTIONARY MEASURE: Isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters (75 feet) for solids.
LARGE SPILL: Consider initial downwind evacuation for at least 50 meters (160 feet).
FIRE: If tank, rail tank car or highway tank is involved in a fire, ISOLATE for 800 meters (1/2 mile) in all directions; also, consider initial evacuation for 800 meters (1/2 mile) in all directions. (ERG, 2024)
Immediate precautionary measure
· Isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters (75 feet) for solids.
Spill
· For highlighted materials: see Table 1 - Initial Isolation and Protective Action Distances.
· For non-highlighted materials: increase the immediate precautionary measure distance, in the downwind direction, as necessary.
Fire
· If tank, rail tank car or highway tank is involved in a fire, ISOLATE for 800 meters (1/2 mile) in all directions; also, consider initial evacuation for 800 meters (1/2 mile) in all directions.
Immediate precautionary measure
· Isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters (75 feet) for solids.
Large Spill
· Consider initial downwind evacuation for at least 50 meters (160 feet).
Fire
· If tank, rail tank car or highway tank is involved in a fire, ISOLATE for 800 meters (1/2 mile) in all directions; also, consider initial evacuation for 800 meters (1/2 mile) in all directions.
Excerpt from ERG Guide 135 [Substances - Spontaneously Combustible]:
ELIMINATE all ignition sources (no smoking, flares, sparks or flames) from immediate area. Do not touch or walk through spilled material. Stop leak if you can do it without risk.
SMALL SPILL: CAUTION: For spills of Xanthates, UN3342 and for Dithionite (Hydrosulfite/Hydrosulphite), UN1384, UN1923 and UN1929, dissolve in 5 parts water and collect for proper disposal. CAUTION: UN3342 when flooded with water will continue to evolve flammable Carbon disulfide/Carbon disulphide vapors. Cover with DRY earth, DRY sand or other non-combustible material followed with plastic sheet to minimize spreading or contact with rain. Use clean, non-sparking tools to collect material and place it into loosely covered plastic containers for later disposal. Prevent entry into waterways, sewers, basements or confined areas. (ERG, 2024)
Excerpt from ERG Guide 170 [Metals (Powders, Dusts, Shavings, Borings, Turnings, or Cuttings, etc.)]:
ELIMINATE all ignition sources (no smoking, flares, sparks or flames) from immediate area. Do not touch or walk through spilled material. Stop leak if you can do it without risk. Prevent entry into waterways, sewers, basements or confined areas. (ERG, 2024)
· Wear positive pressure self-contained breathing apparatus (SCBA).
· Wear chemical protective clothing that is specifically recommended by the manufacturer when there is NO RISK OF FIRE.
· Structural firefighters' protective clothing provides thermal protection but only limited chemical protection.
· Wear positive pressure self-contained breathing apparatus (SCBA).
· Structural firefighters' protective clothing provides thermal protection but only limited chemical protection.
50.0 [mg/m3], as Hf
Excerpts from Documentation for IDLHs: No inhalation toxicity data are available on which to base an IDLH for hafnium compounds. Therefore, the revised IDLH for hafnium compounds is 50 mg Hf/m3 based on acute oral toxicity data in animals . . .
50 mg/m3 (as Hf)
See: 7440586
· DO NOT USE WATER, CO2 OR FOAM ON MATERIAL ITSELF.
· Some of these materials may react violently with water.
CAUTION: For Xanthates, UN3342 and for Dithionite (Hydrosulfite/Hydrosulphite) UN1384, UN1923 and UN1929, USE FLOODING AMOUNTS OF WATER for SMALL AND LARGE fires to stop the reaction. Smothering will not work for these materials, they do not need air to burn.
Small Fire
· Dry chemical, soda ash, lime or DRY sand, EXCEPT for UN1384, UN1923, UN1929 and UN3342.
Large Fire
· DRY sand, dry chemical, soda ash or lime EXCEPT for UN1384, UN1923, UN1929 and UN3342, or withdraw from area and let fire burn.
CAUTION: UN3342 when flooded with water will continue to evolve flammable Carbon disulfide/Carbon disulphide vapors.
· If it can be done safely, move undamaged containers away from the area around the fire.
Fire Involving Tanks, Rail Tank Cars or Highway Tanks
· Fight fire from maximum distance or use unmanned master stream devices or monitor nozzles.
· Do not get water inside containers or in contact with substance.
· Cool containers with flooding quantities of water until well after fire is out.
· Withdraw immediately in case of rising sound from venting safety devices or discoloration of tank.
· ALWAYS stay away from tanks in direct contact with flames.
· DO NOT USE WATER, FOAM OR CO2.
· Dousing metallic fires with water will generate hydrogen gas, an extremely dangerous explosion hazard, particularly if fire is in a confined environment (i.e., building, cargo hold, etc.).
· Use DRY sand, graphite powder, dry sodium chloride-based extinguishers, or class D extinguishers.
· Confining and smothering metal fires is preferable rather than applying water.
· If it can be done safely, move undamaged containers away from the area around the fire.
Fire Involving Tanks, Rail Tank Cars or Highway Tanks
· If impossible to extinguish, protect surroundings and allow fire to burn itself out.
Excerpt from NIOSH Pocket Guide for Hafnium:
Skin: PREVENT SKIN CONTACT - Wear appropriate personal protective clothing to prevent skin contact.
Eyes: PREVENT EYE CONTACT - Wear appropriate eye protection to prevent eye contact.
Wash skin:
• WHEN CONTAMINATED - The worker should immediately wash the skin when it becomes contaminated.
• DAILY - The worker should wash daily at the end of each work shift, and prior to eating, drinking, smoking, etc.
Remove: WHEN WET OR CONTAMINATED - Work clothing that becomes wet or significantly contaminated should be removed and replaced.
Change: DAILY - Workers whose clothing may have become contaminated should change into uncontaminated clothing before leaving the work premises.
Provide:
• EYEWASH - Eyewash fountains should be provided in areas where there is any possibility that workers could be exposed to the substances; this is irrespective of the recommendation involving the wearing of eye protection.
• QUICK DRENCH - Facilities for quickly drenching the body should be provided within the immediate work area for emergency use where there is a possibility of exposure. [Note: It is intended that these facilities provide a sufficient quantity or flow of water to quickly remove the substance from any body areas likely to be exposed. The actual determination of what constitutes an adequate quick drench facility depends on the specific circumstances. In certain instances, a deluge shower should be readily available, whereas in others, the availability of water from a sink or hose could be considered adequate.] (NIOSH, 2024)
Excerpt from ERG Guide 170 [Metals (Powders, Dusts, Shavings, Borings, Turnings, or Cuttings, etc.)]:
Wear positive pressure self-contained breathing apparatus (SCBA). Structural firefighters' protective clothing provides thermal protection but only limited chemical protection. (ERG, 2024)
(See personal protection and sanitation codes)
Skin: Prevent skin contact - Wear appropriate personal protective clothing to prevent skin contact.
Eyes: Prevent eye contact - Wear appropriate eye protection to prevent eye contact.
Wash skin: When contaminated/Daily
Remove: When wet or contaminated
Change: Daily - Workers whose clothing may have become contaminated should change into uncontaminated clothing before leaving the work premises.
Provide: Eyewash, Quick drench
NIOSH/OSHA
Up to 2.5 mg/m3 :
(APF = 5) Any quarter-mask respirator.
Click here for information on selection of N, R, or P filters.
Up to 5 mg/m3 :
(APF = 10) Any particulate respirator equipped with an N95, R95, or P95 filter (including N95, R95, and P95 filtering facepieces) except quarter-mask respirators. The following filters may also be used: N99, R99, P99, N100, R100, P100.
Click here for information on selection of N, R, or P filters.
(APF = 10) Any supplied-air respirator
Up to 12.5 mg/m3 :
(APF = 25) Any supplied-air respirator operated in a continuous-flow mode*
(APF = 25) Any powered, air-purifying respirator with a high-efficiency particulate filter.*
Up to 25 mg/m3 :
(APF = 50) Any air-purifying, full-facepiece respirator with an N100, R100, or P100 filter.
Click here for information on selection of N, R, or P filters.
(APF = 50) Any supplied-air respirator that has a tight-fitting facepiece and is operated in a continuous-flow mode*
(APF = 50) Any powered, air-purifying respirator with a tight-fitting facepiece and a high-efficiency particulate filter*
(APF = 50) Any self-contained breathing apparatus with a full facepiece
(APF = 50) Any supplied-air respirator with a full facepiece
Up to 50 mg/m3 :
(APF = 2000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode
Emergency or planned entry into unknown concentrations or IDLH conditions:
(APF = 10,000) Any self-contained breathing apparatus that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode
(APF = 10,000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode in combination with an auxiliary self-contained positive-pressure breathing apparatus
Escape:
(APF = 50) Any air-purifying, full-facepiece respirator with an N100, R100, or P100 filter.
Click here for information on selection of N, R, or P filters.
Any appropriate escape-type, self-contained breathing apparatus
Metals, Elemental and Powder, Active
Water and Aqueous Solutions
Strong Reducing Agent
Pyrophoric
Highly Flammable
Strong Reducing Agent
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