Nantong Fangbing Chemical Co., Ltd. Contact number: 18012887077 Email: firstname.lastname@example.org
Industrial Phenylhydrazine Factory Wholesale
White monoclinic white crystal or oily liquid, with aromatic odor, gradually yellowing in the air. poisonous. Melting point: 19.5°C (Melting point of hydrazine hydrate: 24°C), the boiling point is 243.5°C. The relative density is 1.0978. The refractive index is 1.
White monoclinic white crystal or oily liquid, with aromatic odor, gradually yellowing in the air. poisonous. Melting point: 19.5°C (Melting point of hydrazine hydrate: 24°C), the boiling point is 243.5°C. The relative density is 1.0978. The refractive index is 1.60813. The flash point is 69°C. Its Ka (15°C) is 1.62 × 10-9. It is miscible with ethanol, ether and benzene. Slightly soluble in water and petroleum ether. Aniline was prepared by diazotization and NaHSO3 reduction method. It is an important intermediate in dyestuff, medicine, pesticide and other industries. It can cause hemolysis of red blood cells, slightly soluble in water and alkaline solutions, and soluble in dilute acid. It is miscible with ethanol, ether, chloroform and benzene, and it evaporates with steam. Flammable. Flammable, in case of open flame and high temperature. Thermal decomposition releases toxic nitrogen oxide fumes. Chemical reactions may occur in contact with strong oxidants.
Phenylhydrazine can be used to identify aldehydes and carboxylic acids. Because phenylhydrazine reacts with aldehydes at room temperature to generate darker phenylhydrazone compounds, and phenylhydrazine is an amine group. When encountering carboxylic acid at room temperature, it can only react with acid and alkali to form salt. When it encounters alkali, it returns to phenylhydrazine. Therefore, phenylhydrazine and carboxylic acid will not react with aldehydes at room temperature, but will condense to form amides when heated to high temperatures.
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