Hydroxylamine hydrochloride synthesis method
A technology for the synthesis of hydroxylamine hydrochloride, which is applied in the fields of hydroxylamine, chemical instruments and methods, nitrogen compounds, etc., and can solve the problems of large amount of waste water, low yield, low purity, etc.
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Embodiment 1
[0025] Put 100g (36.5%) hydrochloric acid and 141g pinacolone oxime into the reaction flask, raise the temperature to 70°C, react for 2 hours, cool and separate, and distill the water layer under reduced pressure. When solids precipitate in the flask, add 210g of ethanol to crystallize and filter to obtain Hydroxylamine hydrochloride, the results are shown in Table 1.
Embodiment 2
[0027] Put 100g (36.5%) hydrochloric acid and 141g pinacolone oxime into the reaction flask, raise the temperature to 75°C, react for 2 hours, cool and separate, and distill the water layer under reduced pressure. When solids precipitate in the flask, add 210g of ethanol to crystallize and filter to obtain Hydroxylamine hydrochloride, the results are shown in Table 1.
Embodiment 3
[0029] Put 100g (36.5%) hydrochloric acid and 141g pinacolone oxime into the reaction flask, raise the temperature to 70°C, react for 3 hours, cool and separate, and distill the water layer under reduced pressure. When solids precipitate in the flask, add 210g of ethanol to crystallize and filter to obtain Hydroxylamine hydrochloride, the results are shown in Table 1.
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