NIGROSIN, OIL SOLUBLE

PRODUCT IDENTIFICATION
CAS NO. 8005-02-5

 

FORMULA  
MOL WT.  
H.S. CODE  
TOXICITY  
SYNONYMS C.I. solvent black 7; Oil Soluble Nigrosine; C.I. 50415:1;

induline base; Nigrosine Base;
RAW MATERIALS 
 

CLASSIFICATION

 

PHYSICAL AND CHEMICAL PROPERTIES
PHYSICAL STATE

black powder

MELTING POINT 175 - 185 C
BOILING POINT  
SPECIFIC GRAVITY  
SOLUBILITY IN WATER Insoluble
SOLUBILITY  
FASTNESS Light (C), Heat (180), Acid(A), Alkali (A) [Scale Index: A (Very Good), B,C, P(Poor)]
pH  
VAPOR DENSITY  
NFPA RATINGS  

REFRACTIVE INDEX

  
FLASH POINT

 

STABILITY Stable under ordinary conditions

APPLICATIONS

Nigrosine is a dark black pigment (or dye), obtained primarily from aniline. There are three kinds: water-, alcohol- (spirit-), or oil- soluble.

Nigrosin

Color Index

CAS RN
Nigrosin water soluble Acid black 2 8005-03-6
Nigrosin oil soluble Solvent Black 7 8005-02-5
Nigrosin alcohol soluble Solvent Black 5 11099-03-9

Nigrosine is used in dying of leather, wood and textiles. It is used in the manufacture of ink, shoe polish cream, carbon paper and toners.. It is also used in compounding resins include phenolic resins, styrenics, polyamides and  urea resins. Nigrosin is acidic and used for cell staining. It has a special affinity for ganglion cells. Picronigrosin is a solution of nigrosin and picric acid in alcohol for staining use. Other applications are in cosmetics, indicators  and colour smoke.

SALES SPECIFICATION

APPEARANCE

black powder

PARTICLE SIZE

0.5% max (+400 mesh)

ANILINE CONTENT

1.0% max

ASH

1.5% max

LOSS ON DRYING

2.0% max

WATER

2.0% max

pH

6.0 - 7.5

CHLORIDE

1.0% max

TRANSPORTATION
PACKING 25kgs in bag
HAZARD CLASS This compound is in the EPA inventory under TSCA.
UN NO.

 




PRICE INFORMATION