NIGROSIN, ALCOHOL SOLUBLE

PRODUCT IDENTIFICATION
CAS NO. 8005-01-4

 

FORMULA

Mixture

MOL WT.  
H.S. CODE  
TOXICITY  
SYNONYMS C.I. Solvent Black 5; C.I. 50415; Nnigrosine WN;
Spirit nigrosine SSB; Orient spirit black SB; Lake black extra; Sspirit black 5B; Nigrosine spirit soluble; Other RN: 11099-03-9, 52276-97-8, 88651-75-6, 94335-94-1, 114654-29-4
SMILES 
 

CLASSIFICATION

 

PHYSICAL AND CHEMICAL PROPERTIES
PHYSICAL STATE

black powder

MELTING POINT 225 C (Decomposes)
BOILING POINT  
SPECIFIC GRAVITY  
SOLUBILITY IN WATER practically insoluble
SOLUBILITY

Very soluble: Sodium carbonate solution
Soluble: Methanol;
Slightly soluble: Butyl acetate; Ethyl acetate; Benzene; Ether; Xylene;
Insoluble: Linseed oil; Mineral oil; Oleic acid; Paraffin wax; Toluene; Turpentine; Stearic acid; White spirit

FASTNESS Light (B), Heat (150 C), Acid(A), Alkali (A) [Scale Index: 1 - 8 & A (Very Good), B,C, P(Poor)]
AUTOIGNITION  
pH  
VAPOR DENSITY  
NFPA RATINGS  

REFRACTIVE INDEX

  
FLASH POINT

 

STABILITY Stable under ordinary conditions

EXTERNAL LINKS & GENERAL DESCRIPTION

Wikipedia Linking - Nigrosine

Google Scholar Search - Spirit nigrosine

Local:
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. Stain grade is used for negative cell staining. Rather than regular base stains like methylene blue or carbol fuchsin it has a special affinity for ganglion cells. Picric acid, Eosin, Nigrosin Acidic stains include Picric acid, Eosin, Nigrosin. 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 (+200 mesh)

FREE AMINE

1.0% max

WATER

3.0% max

CHLORINE

5.0% max

IRON

1.0% max

ASH

2.0% max

TRANSPORTATION
PACKING 25kgs in bag
HAZARD CLASS  
UN NO.

 

PRICE INFORMATION