Pigment yellow 81

English name:Pigment Yellow 81

Alias:21127; C.I.PigmentYellow81; 2,2'-[[2,2',5,5'-tetrachloro(1,1'-biphenyl)-4,4'diyl]bis(azo)]bis[N-(2,4-dimethylphenyl)-3-oxo-Butanamide]; 2,2'-[(2,2',5,5'-tetrachlorobiphenyl-4,4'-diyl)di(E)diazene-2,1-diyl]bis[N-(2,4-dimethylphenyl)-3-oxobutanamide]; 2-[2,5-dichloro-4-[2,5-dichloro-4-[1-[(2,4-dimethylphenyl)carbamoyl]-2-oxo-propyl]azo-phenyl]phenyl]azo-N-(2,4-dimethylphenyl)-3-oxo-butanamide

CAS No.:22094-93-5

Molecular formula:C₃₆H₃₂Cl₄N₆O₄

Molecular weight:754.4891

Molecular structure:

Index:

Colored light: green light yellow color

Relative density: 1.41-1.42

Bulk density/(lb/gal): 11.7-11.8

Melting point/°C: >400

Mean grain size /μm: 0.16

Particle shape: cube

Specific surface area /(m2/g): 26

PH range/(10% slurry): 6.5

Oil absorption /(g/100g): 35-71

Covering force: semi-transparent

lemon yellow powder, bright color, powerful tinting strength, fine fastness, excellent solvent resistance and heat resistance

Main uses

It is mainly used in coating, printing ink, paint and plastic products field for coloring.