Registration Dossier

Physical & Chemical properties

Water solubility

Currently viewing:

Administrative data

Link to relevant study record(s)

Description of key information

Water solubility, D3: ca. 2 mg/l at 23°C
Water solubility, DMSD: 1,000,000 mg/l at 25°C

Key value for chemical safety assessment

Additional information

The water solubility study is not required under Column 2 of REACH Annex VII because the hydrolytic half-life of the substance at pH 4, 7 and 9 is <12 hours. However, data are available that indicates that the test substance has a solubility of 1.6 mg/l at 23°C. The hydrolytic instability of the substance means this value can only be considered an approximation to the solubility. The water solubility of the hydrolysis product is also relevant because of the rapid hydrolysis. A collection of reliable data indicates that dimethylsilanediol, DMSD, is miscible with water at 25°C.