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Environmental fate & pathways

Hydrolysis

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Description of key information

Hydrolysis half-life in water: 10 seconds at pH 7 and 1.5°C

Key value for chemical safety assessment

Half-life for hydrolysis:
0.167 min
at the temperature of:
1.5 °C

Additional information

The test substance hydrolyses very rapidly. The half-life of the test substance was reported to be 6 seconds at pH 4, 10 seconds at pH 7 and 8 seconds at pH 9 (Dow Corning, 2001). This study was conducted according to a standard guideline and is considered reliable for assessment. The hydrolysis products are diphenylsilanediol and hydrochloric acid.