Industrial Chemicals


Formalin / Formaldehyde

Chemical formula: CH2O, HCHO
Clear, colorless has a strong irritating smell of gas

Molecular Weight: 30.03
Density 1.083; the refractive index of 1.3755-1.3775; flash point 60 °C; water-soluble soluble; boiling point -19.5 °C; melting point -118 °C

A colorless, has a strong irritating smell of gas. Its 35% ~ 40% of the aqueous solution known as formalin. Soluble in water, alcohol and ether. Formaldehyde is a gas at room temperature, usually in the form of aqueous solution.

Formaldehyde is an important organic raw materials, mainly used in the plastics industry (such as system phenolic resin, urea-formaldehyde plastics - jade electric), synthetic fibers (such as synthetic vinylon - PVF), leather industry, medicine, dyes, etc. . Formalin has bactericidal and anti-corrosion ability of biological specimens can be impregnated, the dilute solution (0.1-0.5%) can be used to soaking up agriculture for disinfecting seeds.

In addition to formaldehyde can be directly used for disinfection, sterilization, preservatives mainly used in organic synthesis, synthetic materials, paints, rubber, pesticide and other industries, wood-based panel industry developed, the great demand for formaldehyde.


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