Yuanfarchemical: In the first three quarters, China's import and export grew by 9.9% On October 24, the data released by the General Administration of Customs showed that China's total import and export value in the first three quarters.

CongratulationsWarm congratulations to yuanfar Included in the Shaanxi Provincial Department of Commerce key foreign trade enterprises whitelist.

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.

The main industrial production methods of hydrazine hydrate are laxi method, urea method, ketone nitrogen method and hydrogen peroxide method. The urea process is mainly used in China. 1. Urea oxidation method Mix 10% sodium hypochlorite solution with 30% liquid alkali, then cool, adjust the mix

Daminohydrazine is a succinic acid plant growth regulator, which can delay the senescence of lettuce, inhibit the decay and discoloration of mushrooms, but has less effect on cauliflower and rhizome. Daminohydrazine preserves chlorophyll in plants and extends the life of some perishable vegetables.

Physical properties of pure salicylic acid Appearance and properties: white needle-like crystals or hairy crystalline powder. Solubility: Easily soluble in ethanol, ethylene, dilute chlorine, slightly water, and dissolves in boiling water. Melting point: 159°C Boiling point: 211℃, sublimation at 76℃