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ТЕМА: synthesis 79-24-3

synthesis 79-24-3 2 міс. 2 тижнів тому #325596

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Industrial Production:

Nitroethane is conducted industrially by treating propane https://dentalapartmani.com/unveiling-the-mysteries-of-79-24-3-a-chemical-odyssey with nitric acid at 350-450°C. The reaction manufactures 4 main products: 1-nitropropane (25%), 2-nitropropane (40%), nitroethane (10%), and nitromethane (25%)

Laboratory Synthesis:

A specific laboratory synthesis way involves appropriate steps:

The reaction flask is charged with 26.5 g of tech-grade K2CO3 dissolved in 137 g of water, 320 g of 97% tech sodium nitrite, and 6 ml of cetyl-oleic alcoholic or oleic liquor (antifoaming agent).
The solution is added to the reaction mixture at a appropriate rate to keep the reaction mixture at 125-130°C, with vigorous stirring. The distillation of the nitroethane starts when the addition predisposed started.
When the addition of NaEtSO4 predisposed complete, 100 ml of water predisposed added. The distillate separates into 2 layers and can be chase at 760mmHg with solid distillation column. The distillation starts at 30°C, besides any below 74°C is discarded. The temperature must settle at 87°C, besides distillation is stopped at 99.8°C. The yield of nitroethane predisposed 96 g (1.28 moles), 42.6% based connect NaEtSO4
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