dye|World dye variety

Name:C.I.Direct Black 9,C.I.31560/31565

Molecular Structure: trisazo class

C.I.Direct Black 9,C.I.31560/31565,CAS 8003-62-1,755.69,C32H23N9Na2O7S2,Direct Black FF,Direct Black L-N,Direct Fast Black FF,Direct Fast Black FFG

Molecular Formula:C₃₂H₂₃N₉Na₂O₇S₂

Molecular Weight: 755.69

CAS Registry Number:8003-62-1

Manufacturing Methods : 4-Nitrobenzenamine diazo, and 5-Aminonaphthalene-2-sulfonic acid and 8-Aminonaphthalene-2-sulfonic acid matches, will the nitro reduction for amino, product to diazo, and 6-Amino-4-hydroxynaphthalene-2-sulfonic acid coupling, generation of accidentally nitrogen compounds to diazo, and Benzene-1,3-diamine coupling (31560). Note: the above structure is in (FIAT 764) about Columbia Black FF examples given in this, but the real structure have not been determined. 4-Nitrobenzenamine diazo, and 5-Aminonaphthalene-2-sulfonic acid and 8-Aminonaphthalene-2-sulfonic acid matches, will the nitro reduction for amino, product to diazo, in alkaline conditions and 6-Amino-4-hydroxynaphthalene-2-sulfonic acid coupling, generation of accidentally nitrogen compounds to diazo, and 4-Methylbenzene-1,3-diamine coupling (C i.. 31565)

Properties and Applications:  black. Black uniform powder. Soluble in water for red light black, soluble in soluble fiber element, slightly soluble in alcohol, insoluble in other organic solvents. In the dark for the strong sulfuric acid to navy, diluted dark red light for blue or black; In nitric acid solution for red; In strong hydrochloric acid slightly soluble in, red to grey. The dye solution to join strong micro red sodium hydroxide solution. Mainly used for cotton, hemp, such as glue of cellulose fiber dyeing, also suitable for silk, polyamide fiber dyeing. Especially suitable for wool/stick blended fabric dyeing a bath.

List of Suppliers:

Atul Direct Black FR( Atul Limited )

Black FF(Sinochem Liaoning Import & Export Corporation)

Dinamine Fast Black FR(Dintex Dyechem Ltd)

Direct Black FF(Brighten Colorchem BV)

Direct Fast BlackFF ( Sinochem Tianjin Imp Exp Corp )

Direct Fast Black FF (Sinochem Ningbo Imp & Exp Corp)

Direct Fast Black FF ( Sinochem Jiangsu Wuxi Imp & Exp Corp )

Direct Fast Black FF ( Nanjing Chemicals Import and Export Corp )

Direct Fast Black FF (Shandong Qing Shun Chemical Co., Ltd.)

Direct Fast Black FFG (Sinochem Tianjin Imp Exp Corp)

Direct Fast Black FFG(Shandong Qing Shun Chemical Co., Ltd.)

Dycosdirect Black FF (Sinochem Shanghai I/E Corp/Schecho PuDong Corporation)