Calcium Sulfate


💊 Chemical information

Calcii sulfas; Calcium, sulfate de; Calcium Sulphate; E516; Gypsum (calcium sulfate dihydrate); Kalcio sulfatas; Kalciumsulfat; Kalcium-szulfát; Kalsiumsulfaatti; Síran vápenatý; Sulfato cálcico; Wapnia siarczan.
Chemical formula: CaSO4 = 136.1.
CAS — 7778-18-9 (anhydrous calcium sulfate); 1010141-4 (calcium sulfate dihydrate).


In Chin., Eur., Int., and Jpn which specify the dihydrate. Also in USNF which specifies the dihydrate or the anhydrous material.

Ph. Eur. 6.2

(Calcium Sulphate Dihydrate). A white or almost white fine powder. Very slightly soluble in water; practically insoluble in alcohol.


(Calcium Sulfate). It is anhydrous or contains two molecules of water of hydration. A white to slightly yellow-white odourless fine powder. Soluble 1 in 375 of water and 1 in 485 of boiling water; soluble in 3N hydrochloric acid.

💊 Profile

Calcium sulfate dihydrate is used as an excipient for the preparation of tablets or capsules.


Calcium sulfate has been used in homoeopathic medicines under the following names: Calcium sulfuricum; Calcarea sulphurica; Cal. sul.

💊 Preparations

Proprietary Preparations

Austral.: Celloids CS 36.
Published February 02, 2019.