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Why should the temperature of the reaction mixture of nitric acid not be allowed to rise above 200 °C? |
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Answer» 1. Above 200 °C the nitric acid decomposes into H2O, NO2 and O2 as it is very unstable to heat. 2. Sodium sulphate or potassium sulphate will be formed which forms a crust over the mixture thus restricting the release of nitric acid vapours. |
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