What is the chemical name of …

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What is the chemical name of washing soda? Name the three main raw materials required for making it? Write the reaction involved in the preparation of washing soda.

Posted by Abhishek Kumar 4 years, 11 months ago

CBSE > Class 10 > Science

3 answers

Ranvijay Kumar 4 years, 11 months ago

Na2co3

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10A_9_Jignesh Kumar Baranda 4 years, 11 months ago

Thanks

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Yogita Ingle 4 years, 11 months ago

Washing soda is a whitish, odourless powder. Its chemical formula is Na₂CO₃ and is better known as sodium carbonate.

Sodium chloride (NaCI), ammonia (NH₃₎ and limestone (CaCO₃) are raw materials used for the manufacture of washing soda by Solvay process.

At first, sodium bicarbonate is obtained which is then converted to sodium carbonate on heating. Finally, washing soda is produced by recrystallization of sodium carbonate.

NaCl + NH₃ + CO₂ + H₂O → NaHCO₃ + NH₄Cl
2 NaHCO₃→ Na₂CO₃ + H₂O + CO₂
Na₂CO₃ + 10H₂O → Na₂CO₃.10H₂O

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CBSE > Class 10 > Science