Free lookupCAS 1333-74-0
Hydrogen
CAS 1333-74-0 · PubChem CID 783 · H2 · 2.016 g/mol
Also called Hydrogen, Molecular hydrogen, Dihydrogen, Protium, hydrogen-1.
Opens the builder with Hydrogen loaded
as component 1 at 100%.
Signal word
Danger
Regulation (EC) No 1272/2008 of the European Parliament and of the Council — fetched 2026-08-28
Precautionary statement codes
P203, P210, P222, P280, P377, P381, and P403
Regulation (EC) No 1272/2008 of the European Parliament and of the Council — fetched 2026-08-28
Regulation (EC) No 1272/2008 of the European Parliament and of the Council — fetched 2026-08-28
- Appearance
Odourless colourless compressed gas.
ILO-WHO International Chemical Safety Cards (ICSCs) — fetched 2026-08-28
- Odour
Odorless
Hazardous Substances Data Bank (HSDB) — fetched 2026-08-28
- Melting point
-259 °C
ILO-WHO International Chemical Safety Cards (ICSCs) — fetched 2026-08-28
- Boiling point
-253 °C
ILO-WHO International Chemical Safety Cards (ICSCs) — fetched 2026-08-28
- Flash point
Flammable gas
ILO-WHO International Chemical Safety Cards (ICSCs) — fetched 2026-08-28
- Auto-ignition temperature
560 °C
ILO-WHO International Chemical Safety Cards (ICSCs) — fetched 2026-08-28
- Flammable limits
Lower: 4.0%; upper: 75% (% by vol)
Hazardous Substances Data Bank (HSDB) — fetched 2026-08-28
- Vapour pressure
Vapor pressure, kPa at 25 °C: 165320
ILO-WHO International Chemical Safety Cards (ICSCs) — fetched 2026-08-28
- Relative density
no value printed
unsourced — inference candidate
- Solubility in water
Solubility in water, mg/l at 21 °C: 1.62 (very poor)
ILO-WHO International Chemical Safety Cards (ICSCs) — fetched 2026-08-28
- Partition coefficient, log Kow
no value printed
unsourced — inference candidate
- Viscosity
no value printed
unsourced — inference candidate
No published acute toxicity value was found for this substance in the sources we read. On a document, Section 11 would print unsourced — inference candidate rather than an estimate.
This page is the evidence. The document is the deliverable.
Everything above is free and stays free. For $5 the same sourced values are assembled into a 16-section safety data sheet and a print-ready GHS label carrying your company details in Section 1.
Start a document — $5What we read
Regulation (EC) No 1272/2008 of the European Parliament and of the Council, ILO-WHO International Chemical Safety Cards (ICSCs), Hazardous Substances Data Bank (HSDB).
14 sourced records for this substance are in the ledger. Values dated more than 30 days ago are re-fetched on the next document.
- Ethyl acetate141-78-6 · 28 records
- Isophorone diamine2855-13-2 · 23 records
- Citral5392-40-5 · 21 records
- Chloroform67-66-3 · 19 records
- Acetone67-64-1 · 18 records
- Benzyl alcohol100-51-6 · 7 records
- Zinc oxide1314-13-2 · 7 records
- Methyl ethyl ketone78-93-3 · 6 records
Browse every chemical in the ledger · What a GHS safety data sheet contains