Hydrogen
- Hydrogen
- 1333-74-0
- H
- Molecular hydrogen
- Dihydrogen
- Create:2004-09-16
- Modify:2025-01-18
- Hydrogen
- Hydrogen-1
- Protium
- Hydrogen
- 1333-74-0
- H
- Molecular hydrogen
- Dihydrogen
- Hydrogen gas
- Protium
- Hydrogen atom
- Atomic hydrogen
- o-Hydrogen
- p-Hydrogen
- hydrogen-1
- HYDROGEN [HSDB]
- HYDROGEN [MI]
- H2
- HYDROGEN [WHO-DD]
- 7YNJ3PO35Z
- DTXSID9029643
- CHEBI:18276
- UN 1049
- UN 1966
- E 949
- E-949
- 1-Butanol, titanium(4+) salt, monohydrate, homopolymer (9CI)
- Hydrogen atoms
- Hydrogen, atomic
- hidrogeno
- hydrogene
- Wasserstoff
- alpha-cellulose
- Cellulose powder
- hydrogen molecule
- HSDB 5026
- Powdered cellulose
- monoatomic hydrogen
- 3A molecular sieve
- EINECS 215-605-7
- Hydrogen, compressed
- UN1049
- UN1966
- ORTHOHYDROGEN
- PARAHYDROGEN
- HYDROGEN, GAS
- MOL. HYDROGEN
- HYDROGEN [INCI]
- alpha-Cellulose, 90mum
- HYDROGEN (H2)
- T101 Monoclonal Antibody
- COware 20ml with H-Caps
- Hydrogen, >=99.99%
- Hydrogen, >=99.999%
- CHEBI:18140
- CHEBI:33251
- CHEBI:49637
- DTXCID00196437
- YZCKVEUIGOORGS-UHFFFAOYSA-N
- BBL103822
- NSC356464
- STL557632
- alpha-Cellulose, 25mum particle size
- alpha-Cellulose, 65mum particle size
- AKOS016038407
- NSC-356464
- E949
- Hydrogen, Messer(R) CANgas, 99.999%
- NS00080750
- C00282
- alpha-Cellulose, Partical size: d50,180-280mum
- alpha-Cellulose, Partical size: d50,90-150mum
- Q3027893
- 1-Butanol,titanium(4+)salt,monohydrate,homopolymer(9ci)
- 1H
- H-H
- Auger electron spectroscopy
- Fourier transform infrared spectrum
- Gibbs energy
- Absorbance
- Activation energy
- Adsorbate coverage
- Atomic radius
- Avoided-level-crossing muon spin resonance
- Band structure
- Binding energy
- Boiling point
- Cell voltage
- Chemical diffusion
- Composition
- Compressibility
- Corrosion
- Critical point
- Crystal structure
- Crystal structure type
- Crystallization temperature
- Density
- Dielectric constant
- Dielectricity
- Diffusion
- Diffusive flux
- Dispersion
- Elasticity
- Electrode potential
- Electromagnetic induction
- Electron conductivity
- Electron spin resonance
- Enthalpy
- Enthalpy change
- Entropy
- Excess enthalpy
- Exchange current density
- Fluorescence
- Formation energy
- Formation enthalpy
- Formation entropy
- Formula unit
- Geothermal energy content
- Heat capacity
- Heat of combustion
- Heat of solution
- High frequency properties
- Kinetic properties
- Mass transfer coefficient
- Melting curve
- Migration energy
- Miscibility gap
- Mixing enthalpy
- Nuclear magnetic resonance
- Oxygen content
- Phase diagram
- Phase equilibrium
- Phase transition
- Phonon dispersion
- Preexponential factor
- Quasielastic neutron scattering
- Reflection high-energy electron diffraction
- Scanning electron microscopy
- Self-diffusion
- Sintering
- Sound absorption
- Sound propagation
- Sound velocity
- Space group
- Spheroidization
- Surface acoustic wave
- Surface diffusion
- Surface structure
- Thermal grooving
- Transition enthalpy
- Transition entropy
- Transmission electron microscopy
- Unit cell
- Unit cell parameter
- Virial coefficient
- Viscosity
- Volumetric capacity
- Hydrogen, refrigerated liquid (cryogenic liquid) (narrower)
- Adenosine triphosphate disodium; avena sativa flowering top; equisetum hyemale; germanium sesquioxide; glycyrrhiza glabra; hydrogen; hypericum perforatum; oxygen; pueraria montana var. lobata root; ulmus rubra bark; water (component of)
- Adenosine triphosphate disodium; avena sativa flowering top; equisetum hyemale; germanium sesquioxide; glycyrrhiza glabra; hydrogen; hypericum perforatum; oxygen; pueraria montana var. lobata root; silicon dioxide; ulmus rubra bark; water (component of)
- Alcohol; amanita muscaria whole; aspartame; bufo bufo cutaneous gland; datura stramonium; helium; helleborus niger root; human breast tumor cell; hydrogen; hyoscyamus niger; indian frankincense; levodopa; neon; potassium bromide; serotonin hydrochloride; sus scrofa cerebrum; sus scrofa placenta; thuja occidentalis leafy twig (component of)
- Alcohol; amanita muscaria fruiting body; aspartic acid; bufo bufo cutaneous gland; datura stramonium; helium; helleborus niger root; human breast tumor cell; hydrogen; hyoscyamus niger; indian frankincense; levodopa; neon; potassium bromide; serotonin hydrochloride; sus scrofa cerebrum; sus scrofa placenta; thuja occidentalis leafy twig (component of)
- Camphor (natural); canis lupus familiaris milk; datura stramonium; germanium sesquioxide; helleborus niger root; herring sperm dna; human milk; hydrogen; lithium carbonate; magnesium oxide; neon; oxytocin; rhus glabra top; semecarpus anacardium juice; sodium carbonate; sodium tetrachloroaurate; sucrose; sus scrofa placenta; thuja occidentalis leafy twig (component of)
- Adenosine triphosphate; berberis aquifolium root bark; beta vulgaris whole; chelidonium majus whole; eleutherococcus senticosus whole; glycyrrhiza glabra; hordeum vulgare whole; hydrogen; iris versicolor root; milk thistle; oxygen; peumus boldus leaf; salvia rosmarinus flowering top; silicon dioxide; sodium chloride; taraxacum officinale; ulmus rubra bark; zanthoxylum americanum bark (component of)
- Arsenic trioxide; bromine; cadmium sulfate; cinchona officinalis bark; coffea arabica seed, roasted; conium maculatum flowering top; gelsemium sempervirens root; glycyrrhiza glabra; goldenseal; hydrogen; iodine; kerosene; lachesis muta venom; mercurius solubilis; nitric acid; phosphoric acid; phosphorus; phytolacca americana root; pulsatilla vulgaris whole; silicon dioxide; strychnos nux-vomica seed; sulfuric acid; taraxacum officinale (component of)
- Adenosine triphosphate; avena sativa flowering top; berberis aquifolium root bark; beta vulgaris; chelidonium majus; eleutherococcus senticosus whole; equisetum hyemale; glycyrrhiza glabra; hordeum vulgare whole; hydrogen; hypericum perforatum; iris versicolor root; milk thistle; oxygen; peumus boldus leaf; rosmarinus officinalis flowering top; silicon dioxide; sodium chloride; taraxacum officinale; ulmus rubra bark; zanthoxylum americanum bark (component of)
- Adenosine triphosphate; avena sativa flowering top; berberis aquifolium root bark; beta vulgaris whole; chelidonium majus whole; eleutherococcus senticosus whole; equisetum hyemale whole; glycyrrhiza glabra; hordeum vulgare whole; hydrogen; hypericum perforatum whole; iris versicolor root; milk thistle; oxygen; peumus boldus leaf; salvia rosmarinus flowering top; silicon dioxide; sodium chloride; taraxacum officinale; ulmus rubra bark; zanthoxylum americanum bark (component of)
- Aconitum napellus whole; arsenic triiodide; bryonia alba root; cairina moschata heart/liver autolysate; escargot shell, cooked; eupatorium perfoliatum flowering top; gelsemium sempervirens root; hydrogen; influenza A virus A/brisbane/02/2018 ivr-190 (H1N1) antigen (formaldehyde inactivated); influenza A virus A/kansas/14/2017 X-327 (H3N2) antigen (formaldehyde inactivated); influenza B virus B/maryland/15/2016 antigen (formaldehyde inactivated); phosphorus; teucrium scorodonia flowering top; thuja occidentalis leafy twig; veratrum viride root; wood creosote (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)
- Powdered Cellulose (annotation moved to)
- Cytoplasm
- Endoplasmic reticulum
- Extracellular
- Golgi apparatus
- Lysosome
- Mitochondria
- Nucleus
- Peroxisome
- Acute Intermittent Porphyria
- Carnitine Synthesis
- Clomipramine Metabolism Pathway
- Congenital Erythropoietic Porphyria (CEP) or Gunther Disease
- Degradation of Superoxides
- Ethanol Degradation
- Hereditary Coproporphyria (HCP)
- Homocysteine Degradation
- Leigh Syndrome
- Malonic Aciduria
- Total 37 pathways, visit the HMDB page for details
Petroleum Production and Refining [Category: Industry]
Gas Welding and Cutting [Category: Weld]
- Processing aids, not otherwise listed
- Odor agents
- Fuels and fuel additives
- Intermediates
- Fuel agents
- Fuel
- Not Known or Reasonably Ascertainable
- Functional fluids (closed systems)
- Intermediate
- Reducing agent
- Other (specify)
- Other (specify)
- Fuels and fuel additives
- Not Known or Reasonably Ascertainable
- Fuel agents
- Processing aids, not otherwise listed
- Flame retardants
- Odor agents
2019: 5,000,000,000 - <10,000,000,000 lb
2018: 10,000,000,000 - <20,000,000,000 lb
2017: 5,000,000,000 - <10,000,000,000 lb
2016: 10,000,000,000 - <20,000,000,000 lb
- All Other Chemical Product and Preparation Manufacturing
- Primary Metal Manufacturing
- Petrochemical Manufacturing
- Plastics Material and Resin Manufacturing
- Utilities
- All other Petroleum and Coal Products Manufacturing
- All Other Basic Inorganic Chemical Manufacturing
- All Other Basic Organic Chemical Manufacturing
- Petroleum Refineries
- Industrial Gas Manufacturing
- Wholesale and Retail Trade
H220 (99.8%): Extremely flammable gas [Danger Flammable gases]
H280 (76.7%): Contains gas under pressure; may explode if heated [Warning Gases under pressure]
H281 (13.7%): Contains refrigerated gas; may cause cryogenic burns or injury [Warning Gases under pressure]
P203, P210, P222, P280, P282, P336+P317, P377, P381, P403, and P410+P403
(The corresponding statement to each P-code can be found at the GHS Classification page.)
Aggregated GHS information provided per 1405 reports by companies from 20 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Reported as not meeting GHS hazard criteria per 2 of 1405 reports by companies. For more detailed information, please visit ECHA C&L website.
There are 19 notifications provided by 1403 of 1405 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.
Flam. Gas 1 (99.8%)
Press. Gas (Comp.) (76.7%)
Press. Gas (Ref. Liq.) (13.7%)
Flammable gas - category 1
Gases under pressure
Excerpt from ERG Guide 115 [Gases - Flammable (Including Refrigerated Liquids)]:
Vapors may cause dizziness or asphyxiation without warning, especially when in closed or confined areas. Some may be irritating if inhaled at high concentrations. Contact with gas, liquefied gas or cryogenic liquids may cause burns, severe injury and/or frostbite. Fire may produce irritating and/or toxic gases. (ERG, 2024)
· Vapors may cause dizziness or asphyxiation without warning, especially when in closed or confined areas.
· Some may be irritating if inhaled at high concentrations.
· Contact with gas, liquefied gas or cryogenic liquids may cause burns, severe injury and/or frostbite.
· Fire may produce irritating and/or toxic gases.
Excerpt from ERG Guide 115 [Gases - Flammable (Including Refrigerated Liquids)]:
EXTREMELY FLAMMABLE. Will be easily ignited by heat, sparks or flames. Will form explosive mixtures with air. Vapors from liquefied gas are initially heavier than air and spread along ground. CAUTION: Hydrogen (UN1049), Deuterium (UN1957), Hydrogen, refrigerated liquid (UN1966), Methane (UN1971) and Hydrogen and Methane mixture, compressed (UN2034) are lighter than air and will rise. Hydrogen and Deuterium fires are difficult to detect since they burn with an invisible flame. Use an alternate method of detection (thermal camera, broom handle, etc.) Vapors may travel to source of ignition and flash back. Cylinders exposed to fire may vent and release flammable gas through pressure relief devices. Containers may explode when heated. Ruptured cylinders may rocket. CAUTION: When LNG - Liquefied natural gas (UN1972) is released on or near water, product may vaporize explosively. (ERG, 2024)
· EXTREMELY FLAMMABLE.
· Will be easily ignited by heat, sparks or flames.
· Will form explosive mixtures with air.
· Vapors from liquefied gas are initially heavier than air and spread along ground.
CAUTION: Hydrogen (UN1049), Deuterium (UN1957), Hydrogen, refrigerated liquid (UN1966), Methane (UN1971) and Hydrogen and Methane mixture, compressed (UN2034) are lighter than air and will rise. Hydrogen and Deuterium fires are difficult to detect since they burn with an invisible flame. Use an alternate method of detection (thermal camera, broom handle, etc.)
· Vapors may travel to source of ignition and flash back.
· Cylinders exposed to fire may vent and release flammable gas through pressure relief devices.
· Containers may explode when heated.
· Ruptured cylinders may rocket.
CAUTION: When LNG - Liquefied natural gas (UN1972) is released on or near water, product may vaporize explosively.
Excerpt from ERG Guide 115 [Gases - Flammable (Including Refrigerated Liquids)]:
Refer to the "General First Aid" section. Specific First Aid: Clothing frozen to the skin should be thawed before being removed. In case of contact with liquefied gas, only medical personnel should attempt thawing frosted parts. In case of burns, immediately cool affected skin for as long as possible with cold water. Do not remove clothing if adhering to skin. (ERG, 2024)
The only effect of exposure to liquid hydrogen is that caused by its unusually low temperature and its action as a simple asphyxiant.
INHALATION: if victim is unconscious (due to oxygen deficiency), move him to fresh air and apply resuscitation methods; call physician.
EYES: treat for frostbite.
SKIN: treat for frostbite; soak in lukewarm water; get medical attention if burn is severe. (USCG, 1999)
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.
Specific First Aid:
· Clothing frozen to the skin should be thawed before being removed.
· In case of contact with liquefied gas, only medical personnel should attempt thawing frosted parts.
· In case of burns, immediately cool affected skin for as long as possible with cold water. Do not remove clothing if adhering to skin.
In Canada, an Emergency Response Assistance Plan (ERAP) may be required for this product. Please consult the shipping paper and/or the "ERAP" section.
Excerpt from ERG Guide 115 [Gases - Flammable (Including Refrigerated Liquids)]:
DO NOT EXTINGUISH A LEAKING GAS FIRE UNLESS LEAK CAN BE STOPPED. CAUTION: Hydrogen (UN1049), Deuterium (UN1957), Hydrogen, refrigerated liquid (UN1966) and Hydrogen and Methane mixture, compressed (UN2034) will burn with an invisible flame. Use an alternate method of detection (thermal camera, broom handle, etc.).
SMALL FIRE: Dry chemical or CO2.
LARGE FIRE: Water spray or fog. If it can be done safely, move undamaged containers away from the area around the fire. CAUTION: For LNG - Liquefied natural gas (UN1972) pool fires, DO NOT USE water. Use dry chemical or high-expansion foam.
FIRE INVOLVING TANKS: Fight fire from maximum distance or use unmanned master stream devices or monitor nozzles. Cool containers with flooding quantities of water until well after fire is out. Do not direct water at source of leak or safety devices; icing may occur. 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. For massive fire, use unmanned master stream devices or monitor nozzles; if this is impossible, withdraw from area and let fire burn. (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.
· Keep unauthorized personnel away.
· Stay upwind, uphill and/or upstream.
· Many gases are heavier than air and will spread along the ground and collect in low or confined areas (sewers, basements, tanks, etc.).
· ELIMINATE all ignition sources (no smoking, flares, sparks or flames) from immediate area.
· All equipment used when handling the product must be grounded.
· Do not touch or walk through spilled material.
· Stop leak if you can do it without risk.
· If possible, turn leaking containers so that gas escapes rather than liquid.
· Use water spray to reduce vapors or divert vapor cloud drift. Avoid allowing water runoff to contact spilled material.
· Do not direct water at spill or source of leak.
CAUTION: For LNG - Liquefied natural gas (UN1972), DO NOT apply water, regular or alcohol-resistant foam directly on spill. Use a high-expansion foam if available to reduce vapors.
· Prevent spreading of vapors through sewers, ventilation systems and confined areas.
· Isolate area until gas has dispersed.
CAUTION: When in contact with refrigerated/cryogenic liquids, many materials become brittle and are likely to break without warning.
Excerpt from ERG Guide 115 [Gases - Flammable (Including Refrigerated Liquids)]:
IMMEDIATE PRECAUTIONARY MEASURE: Isolate spill or leak area for at least 100 meters (330 feet) in all directions.
LARGE SPILL: Consider initial downwind evacuation for at least 800 meters (1/2 mile).
FIRE: If tank, rail tank car or highway tank is involved in a fire, ISOLATE for 1600 meters (1 mile) in all directions; also, consider initial evacuation for 1600 meters (1 mile) in all directions. In fires involving Liquefied Petroleum Gases (LPG) (UN1075), Butane (UN1011), Butylene (UN1012), Isobutylene (UN1055), Propylene (UN1077), Isobutane (UN1969), and Propane (UN1978), also refer to the "BLEVE - Safety Precautions" section. (ERG, 2024)
Immediate precautionary measure
· Isolate spill or leak area for at least 100 meters (330 feet) in all directions.
Large Spill
· Consider initial downwind evacuation for at least 800 meters (1/2 mile).
Fire
· If tank, rail tank car or highway tank is involved in a fire, ISOLATE for 1600 meters (1 mile) in all directions; also, consider initial evacuation for 1600 meters (1 mile) in all directions.
· In fires involving Liquefied Petroleum Gases (LPG) (UN1075), Butane (UN1011), Butylene (UN1012), Isobutylene (UN1055), Propylene (UN1077), Isobutane (UN1969), and Propane (UN1978), also refer to the "BLEVE - Safety Precautions" section.
Excerpt from ERG Guide 115 [Gases - Flammable (Including Refrigerated Liquids)]:
ELIMINATE all ignition sources (no smoking, flares, sparks or flames) from immediate area. All equipment used when handling the product must be grounded. Do not touch or walk through spilled material. Stop leak if you can do it without risk. If possible, turn leaking containers so that gas escapes rather than liquid. Use water spray to reduce vapors or divert vapor cloud drift. Avoid allowing water runoff to contact spilled material. Do not direct water at spill or source of leak. CAUTION: For LNG - Liquefied natural gas (UN1972), DO NOT apply water, regular or alcohol-resistant foam directly on spill. Use a high-expansion foam if available to reduce vapors. Prevent spreading of vapors through sewers, ventilation systems and confined areas. Isolate area until gas has dispersed. CAUTION: When in contact with refrigerated/cryogenic liquids, many materials become brittle and are likely to break without warning. (ERG, 2024)
· Wear positive pressure self-contained breathing apparatus (SCBA).
· Structural firefighters' protective clothing provides thermal protection but only limited chemical protection.
· Always wear thermal protective clothing when handling refrigerated/cryogenic liquids.
· DO NOT EXTINGUISH A LEAKING GAS FIRE UNLESS LEAK CAN BE STOPPED.
CAUTION: Hydrogen (UN1049), Deuterium (UN1957), Hydrogen, refrigerated liquid (UN1966) and Hydrogen and Methane mixture, compressed (UN2034) will burn with an invisible flame. Use an alternate method of detection (thermal camera, broom handle, etc.)
Small Fire
· Dry chemical or CO2.
Large Fire
· Water spray or fog.
· If it can be done safely, move undamaged containers away from the area around the fire.
CAUTION: For LNG - Liquefied natural gas (UN1972) pool fires, DO NOT USE water. Use dry chemical or high-expansion foam.
Fire Involving Tanks
· Fight fire from maximum distance or use unmanned master stream devices or monitor nozzles.
· Cool containers with flooding quantities of water until well after fire is out.
· Do not direct water at source of leak or safety devices; icing may occur.
· 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.
· For massive fire, use unmanned master stream devices or monitor nozzles; if this is impossible, withdraw from area and let fire burn.
Excerpt from ERG Guide 115 [Gases - Flammable (Including Refrigerated Liquids)]:
Wear positive pressure self-contained breathing apparatus (SCBA). Structural firefighters' protective clothing provides thermal protection but only limited chemical protection. Always wear thermal protective clothing when handling refrigerated/cryogenic liquids. (ERG, 2024)
Patents are available for this chemical structure:
https://patentscope.wipo.int/search/en/result.jsf?inchikey=UFHFLCQGNIYNRP-UHFFFAOYSA-N
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