Do you know how much Sulphur black dyes

Basic information Chinese name Sulphur black dyes 1 Chinese synonyms C.I. Sulphur black dyes 1; Sulphur black; Sulphur black dyes 3B; Sulphur black dyes B; Sulphur black dyes B2RN; Sulphur black dyes BN; Sulphur black dyes BRN; Sulfururblack1 Synonym 2, 4-dinitro-phenolised; c.i.53185; SulphurBlack1; Phenol, 2, 4 – dinitro -, sulfurized; SulfurBlack1,Unsolubilized; SulfurblackBR; Sulfurblack1(C.I.53185); SURLFBLACKCAS No. 1326-82-5 Molecular formula C6H4N2O5 Molecular weight 184.11EINECS No. 215-444-2 Sulfide dyes of related categories; Dye; Sulphur black dyes; Di-(propylene glycol) tert-butyl ether; Chemical raw materials; Ingredients; Disperse dye intermediates; Chemical intermediates industrial raw materials; Chemical Industry for daily use Mol File 1326-82-5.mol Structural Sulphur black dyes1 Properties 1326-82-5(CASDataBaseReference)EPA Chemical material information C.I.S. ulphurBlack1(1326-82-5) Sulphur black dyes 1 Uses and synthesis methods Chemical properties Black powder. Insoluble in water and ethanol. Soluble in sodium sulfide solution is dark green; Greenish-black precipitate in hydrochloric acid; Blue in sodium hydroxide solution; It dissolves slightly when cooled in concentrated sulfuric acid, becomes dark green light blue precipitate when heated, turns to black blue when heated, and produces green light blue precipitate after dilution. The dye was yellowish olive color in the alkaline insurance powder solution, and the original color could be restored after oxidation. Completely discolored in sodium hypochlorite solution. Sulphur black dyes BN is a common dye for dyeing cotton, linen, viscose fibers and their fabrics. The dyeing rate and evenness were good. Can also be mixed with sulfide reduction black CLG dye, black black. It can also be used for dyeing vinylon. Using 2, 4-dinitrochlorobenzene as raw material, 2, 4-dinitrophenol sodium salt was hydrolyzed under alkaline conditions, and then vulcanized with sodium polysulfide solution, and finished products were obtained through oxidation, filtration and drying.