Registration Dossier

Physical & Chemical properties

Water solubility

Currently viewing:

Administrative data

Link to relevant study record(s)

Description of key information

The water solubility of the substance is based on handbook/data base data on calcium sulfate and calcium phosphates. Calcium phosphate monobasic monohydrate is soluble in water. Calcium sulfate anhydrous is soluble in case of granular or powdered form and is soluble in water as dihydrate. Combining the data with  substance's composition, it was concluded that the substance is soluble in water.

Key value for chemical safety assessment

Water solubility:
1 g/L

Additional information

Calcium phosphate monobasic monohydrate is moderately soluble in water (Merck Index);

Calcium dihydrogen phosphate monohydrate is soluble in water (CRC Handbook);

Calcium phosphate monobasic is slightly soluble in water (Sax);

Calcium dihydrogen phosphate monohydrate is very soluble in water (18 g/L) (CRC Handbook, IUCI data base).

Calcium sulfate anhydrous is insoluble (crystal structure as the mineral) or soluble (granular or powder) in water (Merck Index);

Calcium sulfate is slightly soluble in water, calcium sulfate dihydrate is soluble in water (2 g/l at 20°C) (CRC Handbook);

Calcium sulfate is slightly soluble in water (Sax).