Hydrogen manufacturers and suppliers

Hydrogen suppliers

Properties

Melting point:: −259.2 °C(lit.)

Boiling point:: −252.8 °C(lit.)

Density: 0.0899

vapor density: 0.07 (21 °C, vs air)

vapor pressure: Critical temperature is - 239.9 °C; noncondensible above this temperature

Flash point:: <-150°C

solubility: slightly soluble in H2O

pka: 35(at 25℃)

form: colorless gas

color: colorless gas; flammable

Odor: Odorless gas

Flame Color: Pale blue

explosive limit: 74.2%

Water Solubility: 0.00017 g/100 mL

Thermal Conductivity: 0.1805 W/(m·K)

Specific Heat Capacity: Cp(gas): 14.26 J/(g·K), at 25℃

Merck: 13,4813

Henry's Law Constant: 7.8×10^-6 mol/(m³Pa) at 25℃, Fernández-Prini et al. (2003)

Dielectric constant: 1.0(100℃)

Stability:: Stable. Highly flammable. Readily forms explosive mixtures with air. Upper (U.K.) composition limit for use of a nitrogen/hydrogen mixture in the open lab is 5.7% hydrogen.

Cosmetics Ingredients Functions: ANTIOXIDANT

InChI: 1S/H2/h1H

InChIKey: UFHFLCQGNIYNRP-UHFFFAOYSA-N

SMILES: [H]

CAS DataBase Reference: 1333-74-0(CAS DataBase Reference)

NIST Chemistry Reference: Hydrogen(1333-74-0)

EPA Substance Registry System: Hydrogen (1333-74-0)

Safety Information

Symbol(GHS): GHS02,GHS04

Signal word: Danger

Hazard statements: H220

Precautionary statements: P210-P377-P381-P403

PPE: Eyeshields, Faceshields, Gloves, multi-purpose combination respirator cartridge (US)

Hazard Codes: F+

Risk Statements: 12

Safety Statements: 9-16-33

RIDADR: UN 1049 2.1 (HYDROGEN, COMPRESSED)

RIDADR: UN 1966 2.1 (HYDROGEN, REFRIGERATED LIQUID)

WGK Germany: -

RTECS: MW8900000

F: 4.5-31

Autoignition Temperature: 500 to 590 °C

TSCA: TSCA listed

DOT Classification: 2.1 (Flammable gas)

HazardClass: 2.1

Storage Class: 2A - Gases

Hazard Classifications: Flam. Gas 1A
Press. Gas Compr. Gas

Hazardous Substances Data: 1333-74-0(Hazardous Substances Data)

Toxicity: TLV-TWA (ACGIH) None established; simple asphyxiant

Excepted Quantities: Not Permitted as Excepted Quantity

Use

Hydrogen, a non-metallic element, is a colorless odorless, tasteless gas occurring in water combined with oxygen, and in all organic compounds (for example, hydrocarbons and carbohydrates). It is produced by electrolysis of water and is used in the Haber-Bosch process for producing ammonia - a major raw material for nitrogenous fertilizers. Large quantities of hydrogen are utilized in catalytic hydrogenation of unsaturated vegetable oils to make solid fats and petroleum refining. Large quantities of hydrogen are also used as a propulsion fuel for rockets in conjunction with oxygen or fluorine. Being flammable, it is used with helium for filling balloons and airships.

You can find Hydrogen suppliers, manufacturers, and distributors from countries such as China, United States and the India here. Browse to the tetrahydrofuran product information displayed by the supplier, as well as the supplier's contact and capability information.