dye|World dye variety

Name:C.I.Mordant Black 5,C.I.26695

Molecular Structure: Double azo class

C.I.Mordant Black 5,C.I.26695,CAS 8027-29-0,586.84,C27H16N4Na2O7S,Chrome Black Pvt

Molecular Formula:C₂₇H₁₆N₄Na₂O₇S

Molecular Weight: 586.84

CAS Registry Number:8027-29-0

Manufacturing Methods : 3-Amino-2-hydroxybenzoic acid and 5-Amino-2-hydroxybenzoic acid diazotization, and Naphthalen-1-amine coupling, and its product to diazotization, and 4-Hydroxynaphthalene-1-sulfonic acid coupling.

Properties and Applications: red light black. Soluble in water for dark purple, slightly soluble in ethanol and Acetone. In concentrated sulfuric acid for SAP green, dilution after purple; In concentrated nitric acid for wine, and then into orange. Dye aqueous solution to join concentrated hydrochloric acid for sauce red; Join concentrated sodium hydroxide solution for dark blue to blue black.

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Chrome Black Pvt( Classic Dyestuffs Inc )