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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Vapour pressure

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Administrative data

Link to relevant study record(s)

vapour pressure
Type of information:
other: Literature search
Adequacy of study:
weight of evidence
4 (not assignable)
no guideline available
Principles of method if other than guideline:
Not specified
Type of method:
other: Not specified
Key result
Test no.:
ca. 25 °C
Vapour pressure:
ca. 0.01 mm Hg

Description of key information

Key value for chemical safety assessment

Vapour pressure:
133.3 Pa
at the temperature of:
25 °C

Additional information

The substance is a mixture of the following components:

  • Tetrahydroxy silane (2.9%)

  • Polyethylene Glycol (50.1%)

  • Water (40%)

Since the main constituent is the polyethylene glycol, it’s possible to reconduct the physical properties of the mixture to the physical properties of the polyethylene glycol.