ChemEngine Datatools

Free lookupCAS 7446-09-5

Sulfur dioxide

CAS 7446-09-5 · PubChem CID 1119 · O2S · 64.07 g/mol

Also called sulfur dioxide, sulphur dioxide, Sulfurous anhydride, Sulfurous oxide, Fermenicide liquid.

Generate this as your own safety data sheet — $5

Opens the builder with Sulfur dioxide loaded
as component 1 at 100%.

01GHS classification
GHS pictogram: Compressed Gas
Compressed Gas
GHS pictogram: Corrosive
Corrosive
GHS pictogram: Acute Toxic
Acute Toxic
GHS pictogram: Health Hazard
Health Hazard

Precautionary statement codes

P260, P261, P264, P270, P271, P280, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P308+P316, P316, P321, P363, P403+P233, P405, and P501

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

H314Causes severe skin burns and eye damage
H370Causes damage to organs
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

Strong suffocating odor

Hazardous Substances Data Bank (HSDB)fetched 2026-08-29

Melting point

-75.5 °C

ILO-WHO International Chemical Safety Cards (ICSCs)fetched 2026-08-29

Boiling point

-10 °C

ILO-WHO International Chemical Safety Cards (ICSCs)fetched 2026-08-29

Flash point

no value printed

unsourced — inference candidate

Auto-ignition temperature

no value printed

unsourced — inference candidate

Flammable limits

no value printed

unsourced — inference candidate

Vapour pressure

no value printed

unsourced — inference candidate

Relative density

no value printed

unsourced — inference candidate

Solubility in water

Solubility in water, ml/100ml at 25 °C: 8.5

ILO-WHO International Chemical Safety Cards (ICSCs)fetched 2026-08-29

Partition coefficient, log Kow

no value printed

unsourced — inference candidate

Viscosity

Gas: 0.0124 mPa.s at 18 °C. Liquid: 0.368 mPa.s at 0 °C.

Hazardous Substances Data Bank (HSDB)fetched 2026-08-29

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.

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 — $5

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).

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