Chloroacetonitrile is a colorless liquid, pungent odor, soluble in hydrocarbons and ethanol, insoluble in water, with strong irritation and tear-inducing effect, inhalation, oral or contact with the skin toxic, used as pesticides, organic synthesis and pharmaceutical intermediates.
Metaesters are important intermediates for the synthesis of KN reactive dyes, which do not contain his soluble genes on the dye molecule, so that when dyeing β hydroxyethyl sulfone sulfate can be converted to ethylene sulfone and react with cotton fiber, and the insoluble small molecule dye generated can disperse the form of the dye to dye the synthetic fiber.
Par-ester is an important intermediate of reactive dyes, which is used to synthesize EF type, KN type, M/KM type, ME type and other ethylene sulfone-containing reactive dyes. Dye intermediates for the manufacture of vinyl sulfone type reactive dyes. Par-esters are temporary water-soluble groups that not only improve the solubility of dye application, but also have low affinity for fibers of reactive dyes containing hydroxyethyl sulfone sulfate groups when dyeing.
Used in the synthesis of vinyl sulfone-based dyes.
Sulfamic acid, is an inorganic solid acid formed by the hydroxyl group of sulfuric acid is replaced by amino groups, the chemical formula is NH2SO3H, the molecular weight is 97.09, generally white, odorless oblique square sheet crystals, relative density 2.126, melting point 205 °C, soluble in water, liquid ammonia, at room temperature, as long as it is kept dry and does not contact with water, solid sulfamic acid does not absorb hygroscopicity, relatively stable.
Dye intermediates for the manufacture of vinyl sulfone type reactive dyes.
Dye intermediates for the manufacture of vinyl sulfone type reactive dyes.
H acid is a chemical substance mainly used in the production of acidic, direct and reactive dyes, such as acid fuchsin 6B, acid red G, acid black 10B, direct black, active bright red K-2BP, active violet K-3R, active blue K-R and more than 90 kinds, these dyes are used for wool spinning, cotton fabric dyeing. It can also be used in the production of drugs.
