Name | Vat Black 29 |
Synonyms | C.I.65225 Vat Grey BG Vat Black 29 C.I.Vat Black 29 C.I. Vat Balck 29 Dycosthren Grey BG Vat black 29 (C.I. 65225) Youhaothrene Grey BG Colloisol. N,N'-[(6,12-dihydro-6,12-dioxodibenzo[def,mno]chrysene-4,10-diyl)bis[imino(9,10-dihydro-9,10-dioxoanthracene-4,1-diyl)]bis(benzamide)] N,N'-((6,12-Dihydro-6,12-dioxodibenzo(def,mno)chrysene-4,10-diyl)bis(imino(9,10-dihydro-9,10-dioxoanthracene-4,1-diyl))bis(benzamide)) Benzamide, N,N'-((6,12-dihydro-6,12-dioxodibenzo(def,mno)chrysene-4,10-diyl)bis(imino(9,10-dihydro-9,10-dioxo-4,1-anthracenediyl)))bis- Benzamide, N,N'-[(6,12-dihydro-6,12- dioxodibenzo[def,mno]chrysene-4,10-diyl)bis[imino (9,10-dihydro-9,10-dioxo-4,1-anthracenediyl)]]bis- |
CAS | 6049-19-0 |
EINECS | 227-949-5 |
Molecular Formula | C64H34N4O8 |
Molar Mass | 986.98 |
Density | 1.561 |
Physical and Chemical Properties | Dark blue powder. Insoluble in water. Dissolved in concentrated sulfuric acid was dark green, resulting in dark green precipitation after dilution. In the alkaline solution of sodium hydrosulfite showed jujube red, in the acidic liquid yellow light brown. |
use | reduced ash BG is mainly used for dyeing cotton fiber and printing cotton cloth, with good levelness and medium affinity. Also suitable for dyeing silk, viscose fiber, viscose cotton blended fabric. The levelness of dyed vinylon and vinylon cotton is slightly worse. It can also be used for hot melt dyeing of polyester-cotton fabrics. It is often dyed with reduced blue BCS, reduced yellow GCN, reduced brown G, reduced brown GG, reduced brown BR, etc. |
Production method | Using 4, 10-dibromoanthrene anthrone (4, 10-dibromoanthanthrone, C.I.59300) and 1-amino -4-Benzoylaminoanthraquinone as raw materials, the two are condensed in the presence of a copper catalyst to obtain the product. The finished product is filtered, neutralized, washed and dried.. |