Registration Dossier

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Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Additional information

The substance hydrolyses to 1,2-bis[dihydroxy(methyl)silyl]ethane and hydrogen chloride with a hydrolysis half-life of less than 12 hours. Therefore, the environmental hazard assessment, including sediment and soil compartments, due to water and moisture being present, is based on the properties of the silanol hydrolysis product in accordance with REACH guidance for Chemical Safety Assessment (Chapter R16).

1,2-bis[dihydroxy(methyl)silyl]ethane is the expected final product of hydrolysis reactions under conditions of a hydrolysis laboratory study, and is the hydrolysis product relevant to conventional REACH Chemical Safety Assessment. However, other biotic or abiotic reactions may occur over longer time-scales in the environment.

REFERENCE: ECHA (2016). REACH Guidance on Information Requirements and Chemical Safety Assessment Chapter R16: Environmental Exposure Estimation Version: 3.0 February 2016