Direct Black 27

Product Name
Direct Black 27
Chemical Name
Direct Black 27
Synonyms
Direct Black 27;C.I.Direct Black 27:C.I.31810
CBNumber
CB39702902
Formula Weight
0
MOL File
Mol file
More
Less

Hazard and Precautionary Statements (GHS)

More
Less

Direct Black 27 Chemical Properties,Usage,Production

Preparation

4-(4-Aminophenyl)benzenamine double nitriding, first and 4,5-Dihydroxynaphthalene-2,7-disulfonic acid coupling, and then in alkaline conditions and 6-Amino-4-hydroxynaphthalene-2-sulfonic acid?coupling, product to diazo, and Benzene-1,3-diamine coupling.

Properties and Applications

blue and black. Moderate soluble in water for hidden cyan, not soluble in alcohol. The strong sulfuric acid for Tracy in blue, diluted for dark purple. The dye solution to join strong hydrochloric acid have precipitation of dark; Add thick sodium hydroxide solution for purple.

Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water
Fading Stain Fading Stain
ISO 4 3 4 1-2 2-3

Direct Black 27 Preparation Products And Raw materials

Raw materials

Preparation Products

More
Less

Direct Black 27 Suppliers