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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Water solubility

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Description of key information

The water solubility of p-toluenesulfonyl isocyanate could not be determined experimentally due to its instability in contact with water. Instead, for risk assessment purposes the value for its metabolite p-toluenesulfonamide is used: 3.1 g/L 20ºC.

Key value for chemical safety assessment

Water solubility:
3.1 g/L
at the temperature of:
20 °C

Additional information

Due to its instability in contact with water, the water solubility of p-toluenesulfonyl isocyanate cannot be determined experimentally.

As a value for water solubility is required for risk assessment, the water solubility of the metabolite p-toluenesulfonamide (PTSA, CAS 70-55-3) will be used instead. The water solubility for PTSA, obtained in a non-GLP test according to OECD guideline 105 using the flask method, is 3.1 g/L at 20ºC.