98%
400G
Door-to-door
| 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. | UN | 0.0 |
| HS | 32041590 | 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 | ||