pigment yellow 191

Post Date:
Nov 13,2013
Expiry Date:
May 12,2014
Detailed Description:
Cas No. :154946-66-4 Quantity: 50Metric Tons
Specs:semitransparent, good dispersibility
Payment Method: LC etc
C.I.Pigment No. Yellow 191
CAS 154946-66-4
C.I.No. 18795
Physical Properties
Specific Gravity 1.27-1.50
Specific Surface area(m2/g) 22-69
pH 6.50-7.50
Melting point
Specification
Color Shade Similar to the standard
Color Strength 97-103% of the standard
Volatile matter at 105 2.0%max
Soluble matter in water 1.5%max
Oil absorption 45-55%
Finess(100mesh) 5.0%max
Fastness to
Light 5
Heat 280
Bleeding resistance
Water 5
Linseed Oil 5
Acid 5
Alkali 5
Alcohol 5
Xylene 5
Ethyl acetate 5
CAS Registry Number:
154946-66-4
Synonyms:
-;C.I. Pigment Yellow 191;Pigment Brilliant Yellow HGR;c.i. 18795;4-Chloro-2-[[4,5-dihydro-3-methyl-5-oxo-1-(3-sulfophenyl)-1H-pyrazol-4-yl]azo]-5-methylbenzenesulfonic acid calcium salt (1:1);PYRAZOLONE YELLOW HGR;Benzenesulfonic acid, 4-chloro-2-4,5-dihydro-3-methyl-5-oxo-1-(3-sulfophenyl)-1H-pyrazol-4-ylazo-5-methyl-, calcium salt (1:1);Pigment -- Pigment Yellow 191;4-Chloro-2-[5-hydroxy-3-methyl-1-(3-sulfophe- nyl)pyrazol-4-ylazo]-5-methylbenzene sulfonic acid, calcium salt
Molecular Formula:
C₁₇H₁₃CaClN₄O₇S₂
Molecular Weight:
524.97
Molecular Structure:

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