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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Melting point / freezing point

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Administrative data

Link to relevant study record(s)

Description of key information

Xanthates decompose before melting so testing is scientifically unjustified. 

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
260 °C

Additional information

This substance decomposes before melting. The results of the study conducted with the analogue substance (potassium O-isobutyl dithiocarbonate) are used as a WoE in CSA. Target substance is expected to behave in a same way as the analogue xanthate, decompose before melting.

The analogue substance (potassium O-isobutyl dithiocarbonate) has a decomposition temperature of 250-265 °C and a melting temperature 260-270 °C. The key for CSA was obtained from the results of this analogue substance (Kirk-Othmer 1984).