Question

How to convert sodium nitrate to sodium nitrite?

Answer 1

2NaNO₃ -----------> 2NaNO₂ + O₂

Sodium nitrate on strong heating decomposes into sodium nitrite (white or slightly yellow residue) and oxygen.

Answer 2

Answer:

Industrial production of sodium nitrite follows one of two processes, the reduction of nitrate salts, or the oxidation of lower nitrogen oxides. One method uses molten sodium nitrate as the salt, and lead which is oxidized, while a more modern method uses scrap iron filings to reduce the nitrate.

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