dye|World dye variety

Name:C.I.Direct Violet 12,C.I.22550

Molecular Structure: Double azo class

C.I.Direct Violet 12,C.I.22550,CAS 2429-75-6,728.66,C32H22N6Na2O8S2,Direct Violet O,Direct Violet R,Direct Violet RB

Molecular Formula:C₃₂H₂₂N₆Na₂O₈S₂

Molecular Weight: 728.66

CAS Registry Number:2429-75-6

Manufacturing Methods : 4-(4-Aminophenyl)benzenamine double nitriding, in alkaline conditions and 7-Amino-4-hydroxynaphthalene-2-sulfonic acid (2 Moore) coupled.

Properties and Applications: purple. Deep smoked uniform powder. Soluble in water for violet black, soluble in ethanol for product red. In the strong sulfuric acid as dark blue, diluted into dark purple. The dye solution to join strong hydrochloric acid for Red sauce or violet black, precipitation; Add thick sodium hydroxide solution for violet black, precipitation. Cellulose fiber of dyeing, the dye devoured the gender is good, in the 80 ~ 100 ℃ maximum when affinity. Hard to more sensitive. Mainly used for cotton, cellulose fiber fabrics such as glue of dyeing, also can be used for paper dyeing.

List of Suppliers:
Direct Violet O ( KCA Ltd )

Direct Violet R (Sinochem Ningbo Imp & Exp Corp)

Direct Violet R(Shandong Qing Shun Chemical Co., Ltd.)

Direct Violet R 1051A(Sinochem Tianjin Imp Exp Corp)

Direct Violet RB(Shandong Qing Shun Chemical Co., Ltd.)

Direct Violet RB 1053(Sinochem Tianjin Imp Exp Corp)