Direct Black 19
Inquiry
| Post Date: | Mar 09,2017 |
| Expiry Date: | Mar 09,2018 |
| Detailed Description: |
Cas No. :6428-31-5
HANGHZOU EMPEROR CHEMICAL CO,,LTD
web：http://www.chinainterdyes.com Product Name: Direct Black 19 C.I. No.: 35255 CAS No.: 6428-31-5 Molecular Formula: C34H27N13Na2O7S2 Molecular Weight: 839.77 Relative Name: Direct Light Fastness Black L-3BQ,Direct Light Fastness Black,Direct Light Fastness G Direct Black 19, disodium salt (8CI);Artificial SilkBlack G;Artificial Silk Black GN;Artificial Silk Black GR;Bali Viscose Black G;BencidalFast Black G;Benzanil Fast Black G;Benzo Fast Black G;Benzoform BlackRRA-CF;;ChromeLeather Black GNA;Columbia Fast Black G;Daiwa Black 320H;Diamine Fast Black B;Direct Black 19;Direct Black L 3BG;Direct Fast BlackGU;Direct Fast Black SA;Direct Rayon Black KSG;Formal Fast Black 2B;Hispamin Fast Black CG;Kayarus Black G;Kayarus Black G Conc.;Orient Water Black 7;Phenamine Viscose Black RR;Pyrazol Fast Black GS;Rayon Black G;Rayon BlackGSN;Solar Black G;Sumilight Black G;Tertrodirect Black V;Tetrazo Deep Black GC Extra;Viscose Black GNA;Viscose Black J;Viscose Black N;Viscose Black NG;Vondacel Black VN;Water Black 100L;WaterBlack 108L;Water Black P 200; Direct Black 19 Physical Properties and light fastness, solubility. Direct Black 19 Dyeing depth % 2 Insolubles % 0.15 Light Fastness 3 Washing Fatness 2 Rubbing fastness(dry) 4 Rubbing fastness(wet) 3 Direct Black 19 Properties: green and black. Black powder. Soluble in water for green light black, solubility of 100 g/L (80 ??), slightly soluble in ethanol and acetone. The strong sulfuric acid in the green light for black, dilute red after black precipitation; In nitric acid to dark brown. Dyes and microstructure of sulfuric acid solution 10% red; Add thick sodium hydroxide solution for green light blue. Copper ions in dyeing color shade the green, iron ion a slight change in color. Direct Black 19 Applications Used in viscose of dyeing and printing. In the cotton knitwear, blankets, flannelette, silk, viscose, silk that the fabric, wool/viscose fiber blend fabrics can be used. Can also be used in leather, paper and electrochemical aluminum color. Note: The data contained here are based on our current knowledge and experience. It is the responsibility of user to test our products before the final application. |
| CAS Registry Number: | 6428-31-5 |
| Synonyms: | ;C.I. 35255;C.I. Direct Black 19;C.I. Direct Black 19 (VAN);C.I. Direct Black 19, disodium salt;Direct Fast Black G;C.I.Direct Black 19;disodium (3E)-5-amino-6-[(E)-{4-[(E)-(2,4-diaminophenyl)diazenyl]phenyl}diazenyl]-3-(2-{4-[(E)-(2,4-diaminophenyl)diazenyl]phenyl}hydrazinylidene)-4-oxo-3,4-dihydronaphthalene-2,7-disulfonate;(3E)-5-amino-6-[(E)-{4-[(E)-(2,4-diaminophenyl)diazenyl]phenyl}diazenyl]-3-(2-{4-[(E)-(2,4-diaminophenyl)diazenyl]phenyl}hydrazinylidene)-4-oxo-3,4-dihydronaphthalene-2,7-disulfonic acid;Direct Black G; |
| Molecular Formula: | C34H27N13Na2S2O7 |
| Molecular Weight: | 839.77 |
| Molecular Structure: | 
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| Company: | HANGHZOU EMPEROR CHEMICAL CO,,LTD [ China ] |
| Contact: | DEMI DAI |
| Tel: | 08613025001672 |
| Fax: | |
| Email: | dyes@emperorchem.com |
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