Sulfur dioxide: Overview
Description
As a fruit preserving agent and as a food preservative or additive.
In the fermentation stage of wine making.
For bleaching textile fibres.
In the manufacture of paper.
As a disinfectant in breweries and food factories.
As a fumigant for grains, grapes and citrus fruits.
Substance details
Substance name: Sulfur dioxide
CASR number: 7446-09-5
Molecular formula: SO2
Synonyms: sulfurous oxide, sulfur oxide, sulfurous anhydride, sulphur dioxide
Physical properties
Colourless gas. Strong, suffocating odour.
Melting Point: -75.51°C
Boiling Point: -10.06°C
Specific Gravity: 0.00293
Vapour Density: 2.26
Chemical properties
Non-flammable gas. Sulfur dioxide may oxidise to sulfur trioxide which then dissolves in water to produce sulfuric acid.
Further information
The National Pollutant Inventory (NPI) holds data for all sources of Sulfur dioxide in Australia.
Key
Links to an another web site
Opens a pop-up window
