Product name: Acid black 2 powder and Acid black 2 crystal

　　CAS Registry Number: 8005-03-6

　　Manufacturing Methods: will all grades of alcohol solution aniline Black (C.I.Solvent Black 5, C.I. 50415) stlfonation, again into their products for all kinds of sodium salt.

　　Properties and Applications: Black. 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.

　　Standard

　　Light Fastness

　　Soaping

　　Persperation Fastness

　　Oxygen bleaching

　　Fastness to seawater

　　Fading

　　Stain

　　Fading

　　Stain

　　Fading

　　Stain

　　ISO

　　5

　　4

　　4

　　Proudct analysis:

　　PRODUCT NAME

　　QUANTITY

　　STRENGTH≥98.0%

　　MOISTURE≤6.00%

　　ASH CONTENT≤17.00%

　　ACID BLACK 2 CRYSTALS

　　4500KG

　　122%

　　1.65%

　　12.48%

　　4500KG

　　122%

　　2.01%

　　11.78%

　　This is to certify that we, the undersigned, have inspected/tested the quality of the mentioned

　　Variety & application of Nigrosine

　　Black powder

　　OBN-BEEX

　　Nigrosine MS Conc (C.I.) ACID BLACK2 50420

　　Black crystal

　　Coat & coloring of leather, cotton, Flax Metal dying;

　　Water-soluble printin ink & stationery dying.

　　ANC-RGC

　　General application

　　ANC-BGC

　　Black powder

　　ANC-RGP

　　General application

　　3. Package

　　Soft package: Store in damp-proof nylon bag covered with plastic knitted bag and complex bag outside.

　　Net Weight: 25kgs / Size: 0.075CBM

CAS NO:8005-03-6

EC NO:

Molecular Formula:

Molecular Weight:

Synonyms:;C.I. Acid Black 2;Nigrosine;C.I. 50420;Nigrosin water soluble;nigrosin cell culture tested;Nigrosin Acid black;Acid Black 5 (50420);Nigrosin;Nigrosine Water Soluble;

Molecular Structure: