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Direct Black Db
Direct Black DB
/ CAS : 6369-65-9| Appearance | Black powder, insoluble in water and ethanol, slightly soluble in acetone, chloroform, pyridine and toluene, soluble in o-chlorophenol, xylene and tetrahydronaphthalene. It is dark purple in concentrated sulfuric acid and precipitates into dark purple after dilution. The leucosomes in alkaline sodium silicate reducing solution are purple and dark red in acid solution. It was originally green and became black after oxidation. At present, they are used as black vat dyes. It belongs to anthrone anthraquinone vat dyes. | Formula | C34H15NO4 | Molecular Mass | 501.48700 |
| HS | 32041590 | UN | 0.0 | DG Class | 0.0 |
| Synonyms | Indanthrene Black Bbn; Indanthrene Black; Threne Black Bb; C.I.Vatgreen9; C.I.Vatgreen9(59850); Caledonblackcnb; Indanthrenblackbb-N; Nihon-Threneblackbb | ||||
Manufacturer List
1 manufacturers found for "Direct Black DB"
19 YRS
Jiangsu, China
Manufacturing
Main Products:
Vat blue 66 / Reaction Dye / Vat Dyes / Reactive Brilliant Blue KN-R / C.I. Reactive Yellow 95 / Reactive Black KN-B / Vat Yellow GCN / Vat Yellow F3G / Vat Yellow G / Vat Red 31 / Vat Blue 6 / Vat Dark Blue BO / Vat Blue 18 / Vat Black 9 / Direct Black DB
Quality Certificates:
REACH, other
Loading Port:
Shanghai
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