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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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


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Description of key information

The density of dimethyl sulphate is 1.33 g/cm3 at 20 °C.

Key value for chemical safety assessment

Relative density at 20C:

Additional information

A literature review was conducted. In a weight of evidence approach the literature values were evaluated. REAXYS reports the density to be between 1.332 g/cm3 and 1.3283 g/cm3 at 20 °C. HSDB reports the density to be 1.3322 g/cm3 at 20 °C.

The GESTIS database reports the density to be 1.33 g/cm3 at 20 °C and IPCS International Programme on Chemical Safety reports the relative density to be 1.3 at 20 °C. Four independent literature sources reports the density in the same range. Thus, a density of 1.33 g/cm3 at 20 °C which represent the median of all values was chosen as key value.