Product Name: Acid Black 2
C.I. No.: 50420
CAS No.: 8005-03-6
Molecular Formula: C22H14N6O9S2-3.2[NA]
Molecular Weight: 616.49
Shade:Black
Relative name: Nigrosine Black , Nigrosine Black 2 Nigrosine MS Conc. Water-soluble Nigrosine Black Shoe polish black, Ms Conc, Nigrosine , Nigrosine water soluble ,Nigrosine W/S ,Acid Nigrosine ,Acid Grains Black,Nigrosine WLL, Nigrosine B, Nigrosine G.HN ,Nigrosine K , Nigrosine S ,Nigrosine Z , Water Nigrosine SB.
| NAME | Acid Black 2 | |
| SYNONYMS | Nigrosine; C.I. 50420; Nigrosin water soluble; nigrosin cell culture tested; Nigrosin Acid black; Acid Black 5 (50420); Nigrosin |
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| CAS NO | 8005-3-6 | |
| ANALYSIS RESULT | ||
| ITEM | STANDARD | RESULT |
| Appearance | Black crystal | Black |
| Moisture | 6% max | 4.50% |
| Ash Content | 17% max | 15.10% |
| Strength | 100% | 108% |
Black with flash in the granular, a violet is soluble in water, soluble in ethanol is blue. The strong sulfuric acid dyes is blue, it will be diluted and the generated purple precipitation. Blue light purple in aqueous solution, and sodium hydroxide show dark purple precipitation.
Mainly used for leather dyeing. Also applies to paper, wood, soap, electrical-controlled aluminum, wool and silk dyeing of content, but also can be used in the manufacture of ink.
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.
