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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Classification & Labelling & PBT assessment

PBT assessment

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Administrative data

PBT assessment: overall result

Tetraethyl orthosilicate (CAS 78-10-4; EC No. 201-083-8)
Type of composition:
boundary composition of the substance
State / form:
Reference substance:
Tetraethyl orthosilicate (CAS 78-10-4; EC No. 201-083-8)
PBT status:
the substance is not PBT / vPvB

The submission substance hydrolyses rapidly in contact with water, and therefore the substance does not meet the criteria for PBT or vPvB.

Likely routes of exposure:

The submission substance and its hydrolysis products do not meet the criteria for PBT; therefore, emission characterisation is not required.