Identify the compound of calcium which is used for plastering of fractured bones. With the help of chemical equation show how is it prepared and what special precautions should be taken during the preparation of this compound.

Explanation

**Step-by-Step Solution:**

1. **Identify the Calcium Compound:**
The calcium compound used for plastering fractured bones is Calcium Sulfate Hemihydrate, commonly known as Plaster of Paris (POP). Its chemical formula is \( \text{CaSO}_4 \cdot \frac{1}{2} \text{H}_2\text{O} \) or \( \text{CaSO}_4 \cdot 1 \text{H}_2\text{O} \).

2. **Preparation of Plaster of Paris:**
Plaster of Paris is prepared by heating gypsum, which is Calcium Sulfate Dihydrate (\( \text{CaSO}_4 \cdot 2\text{H}_2\text{O} \)). The chemical equation for this reaction is:
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