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Base Information Edit
  • Chemical Name:Hydrogen
  • CAS No.:1333-74-0
  • Molecular Formula:H2
  • Molecular Weight:2.01588
  • Hs Code.:
  • European Community (EC) Number:215-605-7
  • ICSC Number:0001
  • NSC Number:356464
  • UN Number:1049
  • DSSTox Substance ID:DTXSID9029643
  • Wikipedia:Hydrogen,Dihydrogen
  • Wikidata:Q3027893
  • NCI Thesaurus Code:C84102
  • Mol file:1333-74-0.mol


Suppliers and Price of Hydrogen
Supply Marketing:Edit
Business phase:
The product has achieved commercial mass production*data from LookChem market partment
Manufacturers and distributors:
  • Manufacture/Brand
  • Chemicals and raw materials
  • Packaging
  • price
  • Sigma-Aldrich
  • Hydrogen ≥99.99%
  • 56l
  • $ 259.00
  • Sigma-Aldrich
  • Hydrogen ≥99.99%
  • 57l
  • $ 253.00
  • Oakwood
  • Hydrogen
  • 56L
  • $ 190.00
  • American Custom Chemicals Corporation
  • HYDROGEN 95.00%
  • 56L
  • $ 6551.74
Total 29 raw suppliers
Chemical Property of Hydrogen Edit
Chemical Property:
  • Appearance/Colour:Colorless gas 
  • Vapor Pressure:Critical temperature is - 239.9 °C; noncondensible above this temperature 
  • Melting Point:-259.2 °C(lit.) 
  • Boiling Point:-252.8 °C(lit.) 
  • PKA:35(at 25℃) 
  • Flash Point:<-150°C 
  • PSA:0.00000 
  • Density:0.0899 g/cm3 
  • LogP:0.00000 
  • Water Solubility.:0.00017 g/100 mL 
  • XLogP3:0
  • Hydrogen Bond Donor Count:0
  • Hydrogen Bond Acceptor Count:0
  • Rotatable Bond Count:0
  • Exact Mass:2.0156500638
  • Heavy Atom Count:0
  • Complexity:0
  • Transport DOT Label:Flammable Gas

99% *data from raw suppliers

Hydrogen ≥99.99% *data from reagent suppliers

Safty Information:
  • Pictogram(s): HighlyF+ 
  • Hazard Codes:F+ 
  • Statements: 12 
  • Safety Statements: 9-16-33 
MSDS Files:

SDS file from LookChem

Total 1 MSDS from other Authors

  • Chemical Classes:Toxic Gases & Vapors -> Simple Asphyxiants
  • Canonical SMILES:[HH]
  • Recent ClinicalTrials:Safety, Tolerability, and Pharmacokinetics (PK) of Single and Multiple Ascending Oral Doses of XEN1101.
  • Recent EU Clinical Trials:An open-label study to evaluate the extended early bactericidal activity, safety, tolerability and pharmacokinetics of multiple doses (m.d.) of TMC207 oral solution (os) and isoniazid (JH), m.d. of TMC207 os and pyrazinamide (JZ), m.d. of TMC207 os and rifampin (JR) or m. oral d. of TMC207 os and isoniazid and pyrazinamide (JHZ), compared to the 3 principle drugs of standard anti-tuberculosis treatment (HRZ) in treatment-na?ve subjects with sputum-smear positive pulmonary tuberculosis.
  • Recent NIPH Clinical Trials:Evaluation of effectiveness and clarification of the mechanism of high concentration hydrogen water intake on systemic inflammatory reaction syndrome
  • Inhalation Risk:On loss of containment this substance can cause suffocation by lowering the oxygen content of the air in confined areas.
  • Effects of Short Term Exposure:Asphyxiation. Exposure to cold gas could cause frostbite.
  • Description Hydrogen is colorless, odorless, tasteless, flammable, and nontoxic. It exists as a gas at ambient temperatures and atmospheric pressures. It is the lightest gas known, with a density approximately 0.07% that of air. Hydrogen is present in the atmosphere occurring in concentrations of only about 0.5 ppm by volume at lower altitudes.
  • Physical properties Hydrogen’s atom is the simplest of all the elements, and the major isotope (H-1) consists ofonly one proton in its nucleus and one electron in its K shell. The density of atomic hydrogenis 0.08988 g/l, and air’s density is 1.0 g/l (grams per liter). Its melting point is –255.34°C,and its boiling point is –252.87°C (absolute zero = –273.13°C or –459.4°F). Hydrogen hastwo oxidation states, +1 and –1.
  • Uses Hydrogen is an excellent reducing agent.Production of ammonia (NH3).Ethanol (ethyl alcohol made from grains).Hydrogenation of vegetable oils. Large quantities of hydrogen are produced on site or pipelined for use by refineries, petrochemical and bulk chemical facilities for hydrotreating, catalytic reforming, and hydrocracking. Smaller quantities of hydrogen are produced on site or pipelined for use in the chemical, metallurgical, fats and oils, glass, and electronic industries. Some of these smaller users have hydrogen delivered to their manufacturing location as gaseous hydrogen in cylinders or tube trailers, or by cascade into on-site storage cylinders. Certain smaller users have liquid hydrogen delivered into an on-site liquid hydrogen storage system. In oxy-hydrogen blowpipe (welding) and limelight; autogenous welding of steel and other metals; manufacture of ammonia, synthetic methanol, HCl, NH3; hydrogenation of oils, fats, naphthalene, phenol; in balloons and airships; in metallurgy to reduce oxides to metals; in petroleum refining; in thermonuclear reactions (ionizes to form protons, deuterons (D) or tritons (T)). liquid hydrogen used in bubble chambers to study subatomic particles; as a coolant.
Technology Process of Hydrogen

There total 2807 articles about Hydrogen which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:
Guidance literature:
With water; at 20 ℃; pH=4.5; Quantum yield; UV-irradiation; Inert atmosphere;
Guidance literature:
at 650 ℃; for 2h; under 38002.6 Torr;
Guidance literature:
at 600 - 800 ℃; under 2280.15 - 30402 Torr;
upstream raw materials:


sodium tetrahydroborate



Downstream raw materials:





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