Free lookupCAS 7664-41-7

Ammonia

CAS 7664-41-7 · PubChem CID 222 · H3N · 17.031 g/mol

Also called ammonia, azane, Ammonia gas, Nitro-sil, Ammonia anhydrous.

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01GHS classification

Compressed Gas

Corrosive

Acute Toxic

Environmental Hazard

Signal word

Danger

Regulation (EC) No 1272/2008 of the European Parliament and of the Council — fetched 2026-08-28

Precautionary statement codes

P210, P260, P261, P264, P271, P273, P280, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P316, P321, P363, P377, P381, P391, P403, P403+P233, P405, and P501

Regulation (EC) No 1272/2008 of the European Parliament and of the Council — fetched 2026-08-28

H221Flammable gas

Regulation (EC) No 1272/2008 of the European Parliament and of the Council — fetched 2026-08-28

H314Causes severe skin burns and eye damage

Regulation (EC) No 1272/2008 of the European Parliament and of the Council — fetched 2026-08-28

H331Toxic if inhaled

Regulation (EC) No 1272/2008 of the European Parliament and of the Council — fetched 2026-08-28

H400Very toxic to aquatic life

Regulation (EC) No 1272/2008 of the European Parliament and of the Council — fetched 2026-08-28

02Physical and chemical properties

Appearance

Colourless gas or compressed liquefied gas with pungent odour.

ILO-WHO International Chemical Safety Cards (ICSCs) — fetched 2026-08-28

Odour

Sharp, cloying, repellent

Hazardous Substances Data Bank (HSDB) — fetched 2026-08-28

Melting point

-78 °C

ILO-WHO International Chemical Safety Cards (ICSCs) — fetched 2026-08-28

Boiling point

-33 °C

ILO-WHO International Chemical Safety Cards (ICSCs) — fetched 2026-08-28

Flash point

132 °C (270 °F) - closed cup

Hazardous Substances Data Bank (HSDB) — fetched 2026-08-28

Auto-ignition temperature

630 °C

ILO-WHO International Chemical Safety Cards (ICSCs) — fetched 2026-08-28

Flammable limits

Lower flammable limit: 15% by volume; Upper flammable limit: 28% by volume

Hazardous Substances Data Bank (HSDB) — fetched 2026-08-28

Vapour pressure

Vapor pressure, kPa at 26 °C: 1013

ILO-WHO International Chemical Safety Cards (ICSCs) — fetched 2026-08-28

Relative density

no value printed

unsourced — inference candidate

Solubility in water

no value printed

unsourced — inference candidate

Partition coefficient, log Kow

no value printed

unsourced — inference candidate

Viscosity

no value printed

unsourced — inference candidate

03Toxicological information

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.

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What we read

ILO-WHO International Chemical Safety Cards (ICSCs), Regulation (EC) No 1272/2008 of the European Parliament and of the Council, Hazardous Substances Data Bank (HSDB).

12 sourced records for this substance are in the ledger. Values dated more than 30 days ago are re-fetched on the next document.

04Also in the ledger

Browse every chemical in the ledger · What a GHS safety data sheet contains