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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Link to relevant study record(s)

Description of key information

Density (tetrapropyl orthosilicate): ca. 0.92 g/cm3 (DIN 51757)

Key value for chemical safety assessment

Additional information

A measured density of ca. 0.92 g/cm3 at 20˚C was determined for the test substance using an appropriate test method. Although full details are not available, the result is considered reliable and selected as key study. This value is supported by a reliable predicted density of 0.94 g/cm3 at 20˚C using a validated QSAR estimation method. The supporting study is in good agreement with the key study.