Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Physical & Chemical properties

Endpoint summary

Administrative data

Description of key information

Additional information

Sulfur dioxide is a colourless, inorganic gas with biting odour.

The melting point of sulphur dioxide is -75.5°C, the boiling point of sulphur dioxide is -10.05°C.

Density of sulphur dioxide: 2.51 g/L at 25°C

Vapour pressure: 3271 hPa at 20°C

The solubility of sulphur dioxide in water at 101.3 kPa is 22.86 g/100 G (0°C), and 11.4 g/100 g (20°C).