In this method, ketone imine is generated by the reaction of butanone (methyl-ethyl ketone) and ammonia, and then oxidized to oxazizone with H2O2, and then ammoniated to methyl-ketone nitrile. The latter is hydrolyzed into hydrazine and ketone, and the unreacted ketone can be recycled after purification.
The ketorenazone method, also known as Bergbau-Bayer-Whiffen method, was developed in the 1960s. It was first patented by Bergbau-Farsching, a subsidiary of the German Coal Mining Association. The process was improved by Bayer and Whiffen & Sons. Respectively, in the mid 1970s, large-scale industrialization and rapid development, is actually an improvement of the original Lacey law.
There are four industrial production methods of hydrazine hydrate: lacey method, urea method, ketone nitrogen method and hydrogen peroxide method. At present, urea method is mainly used in China. 2.1.1 Raschig method This process, first used in industrial production in 1906, produces hydrazine.
Polymorphism Hydrazine has toxicology 1. Acute toxicity: MEDIAN lethal dose (rabbit, vein) 25mg/kg, highly toxic, strongly erodes skin and impedes enzymes in the body. Acute poisoning can damage the central nervous system and, in most cases, lead to death. It mainly affects the metabolism of carb
Hydrazine monohydrate is a colorless fuming liquid, weakly alkaline, slightly odorous, and combustible. Melting point -51.7°C, boiling point 120.1°C, 47°C (3.33 kPa), relative density 1.032 (21/4°C), refractive index 1.4280. The flash point (open cup) is 73°C. When it comes into contact with metal o
The downstream of the hydrazine hydrate industry chain is mainly in chemical, pharmaceutical, pesticide, power, water treatment, aerospace and other industries.Hydrazine hydrate, also known as hydrazine hydrate, pure product appearance for colorless transparent oily liquid, a light ammonia taste, to