Question

How does plaster of paris reacts with water? Write down the chemical equation​

Answer 1

Answer:

Plaster of Paris when reacts with water liberating heat through crystallization. Gypsum is produced by heating plaster of paris to about 150-degree Celsius. When the dry plaster of paris powder is mixed with water it reforms into gypsum. Depending upon the temperature gypsum converts to hemihydrate or anhydrous form.

Plaster of Paris

CaSO

4

.

2

1

H

2

O

+

Water

2

3

H

2

O

⟶

Gypsum

CaSO

4

.2H

2

O

Answer 2

Answer:

(caso4 .1/2.h2o) + 1 1÷2 = caso4 . 2 .H2O

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