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Physical & Chemical properties

Boiling point

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Description of key information

The boiling point of sulphur trioxide is reported to be 44.8 °C at 1013 hPa.

Key value for chemical safety assessment

Boiling point at 101 325 Pa:
317.8 K

Additional information

The boiling point of sulphur trioxide is reported to be 44.8 °C at 1013 hPa (CRC Handbook)

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