Answers

2014-05-22T15:03:20+05:30
Plaster of paris is prepared by heating calcium sulfate dihydrate, or gypsum, to 120°–180° C (248°–356° F)
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2014-05-22T15:32:33+05:30
It is prepared by precipitating a solution of calcium cloride or nitrate with dilute sulphuric acid.
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