Superphosphate of lime is - Vidyadip

MCQ

Superphosphate of lime is

A
A mixture of normal calcium phosphate and gypsum
✓
A mixture of primary calcium phosphate and gypsum
C
Normal calcium phosphate
D
Soluble calcium phosphate

✓

Answer

Correct option: B.

A mixture of primary calcium phosphate and gypsum

b
(b) Superphosphate of lime -It is a mixture of calcium dihydrogen phosphate and gypsum and is obtained by treating phosphatic rock will conc. ${H_2}S{O_4}$

$C{a_3}{(P{O_4})_2} + 2{H_2}S{O_4} + 5{H_2}O\, \to $ $\mathop {Ca{{({H_2}P{O_4})}_2}.2{H_2}O}\limits_{{\rm{Superphosphate\,of \,lime}}} + 2CaS{O_4}.2{H_2}O$

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