dye|World dye variety

Name:C.I.Mordant Black 68,C.I.26751

Molecular Structure: Double azo class

C.I.Mordant Black 68,C.I.26751,CAS 8048-91-7,586.48,C27H16N4Na2O7S,Diamond Black FB

Molecular Formula:C₂₇H₁₆N₄Na₂O₇S

Molecular Weight: 586.48

CAS Registry Number:8048-91-7

Manufacturing Methods :3-Amino-2-hydroxybenzoic acid and 5-Amino-2-hydroxybenzoic acid diazotization, and Naphthalen-1-amine coupling, product to diazotization, and 5-Hydroxynaphthalene-1-sulfonic acid coupling.

Properties and Applications:  black. Soluble in water for dark purple, right amount soluble in ethanol. In concentrated sulfuric acid to blue light green, dilution for shallow sauce red. Dye aqueous solution to join concentrated hydrochloric acid for sauce red; Join concentrated sodium hydroxide solution for navy blue.

List of Suppliers:

Diamond Black FB( Bayer Group )