Gypsum Kya Hota Hai Isko 373 Kelvin tap per garm karne se kya hota hai
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Gypsum(CaSo4.2H2O) is also known as calcium sulphate hemihydrate. Whan heated at 373K,it forms plaster of paris(CaSo4.1/2H2O) +3/2H2O
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when gypsum is heated in 373kelvin the water is absorbed and it change into calcium sulphate hemihydrate
caso4 . 1/2h2o
but when it is overheated its changed into blacked powder(black ash)
all water is evaporated
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