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Search result for: calcium sulfate (anhydrous)*

Table showing details for calcium sulfate (anhydrous)*
Chemical
Category & User Codes
DG Class
DG PG
UN CAS No
Guidance notes
calcium sulfate (anhydrous)*
 
K-12
NR

Not H   		-
 -
7778-18-9 		Not hazardous according to Worksafe criteria.
The hemihydrate is normally produced by heating the dihydrate in the range 130-160?C. The resulting powder is also known as plaster of Paris.
Heating to a higher temperature can give the anhydrous compound that is not useful in plaster making, as its rehydration, and setting, is too slow.
Thus, this is called 'dead-burnt' calcium sulfate. Irritant to skin, eyes, mucous membranes and upper respiratory tract.
Use rubber gloves and eye protection, and handle solid in fume cupboard.

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See also calcium sulfate