Product name:Acid Black 1
CAS:1064-48-8
Molecular Formula:C22H14N6Na2O9S2
Formula Weight:616.49
Description:Acid Black 1 is a dark brown powder. Soluble in water, aqueous solution is blue black, add concentrated hydrochloric acid to produce green light blue precipitation; Add sodium hydroxide solution to produce blue precipitate. Soluble in ethanol, blue, slightly soluble in acetone, insoluble in other organic solvents. It is blue and green in concentrated sulfuric acid, and then produces dark green light blue precipitation after dilution. Dark green solution in concentrated nitric acid turned to sauce red; Blue precipitate is formed in 10% sodium hydroxide solution. When dyeing, the color of copper ion changes slightly. When iron ion color is slightly green.
Acid Black 1 is based on H Acid, p-nitroaniline and aniline as raw materials. First, p-nitroaniline diazotization is carried out and coupled with H Acid under acidic conditions. Then, aniline diazotization is carried out and coupled with the above-mentioned coupling products for the second time under alkaline conditions to obtain the product. Acid Black 1 was obtained by salting out, filtration, drying and crushing.
Specification:10g
Flash Point:30 °C
Density:1.05 g/mL at 20 °C
Chemical property:Dark red to black powder
Use:Used mainly for textile printing and dyeing.