What are the raw materials used in solvay's process for the preparation of sodium carbonate?

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Solution

The raw materials used in solvay's process are:
$N a C l, N H_{3},$ and $C a C O_{3}$
The following reaction is solvay's process took place:
$2 N H_{3} + C O_{2} + H_{2} O \to (N H_{4})_{2} C O_{3} (N H_{4})_{2} C O_{3} + C a C l_{2} \to C a C O_{3} ↓ + 2 N H_{4} C l N H_{3} + C O_{2} + H_{2} O \to N H_{4} H C O_{3} N H_{4} H C O_{3} + N a C l 30^{\circ} C ⟶ N a H C O_{3} + N H_{4} C l$
Calcination to get sodium carbonate
$2 N a H C O_{3} \to N a_{2} C O_{3} + H_{2} O + C O_{2}$

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