Pigment Yellow 191
Name:C.I.Pigment Yellow 191,C.I.18795
Molecular Structure: Single azo
C.I.Pigment Yellow 191,C.I.18795,CAS 129423-54-7,486.91,C17H15ClN4O7S2,Hostaprint Yellow HGR,PV Fast Yellow H2GR VP,PV Fast Yellow HGR,Yellow KGR
Molecular Formula:C17H15ClN4O7S2
Molecular Weight: 486.91
CAS Registry Number:129423-54-7
Manufacturing Methods :2-Amino-4-chloro-5-methylbenzenesulfonic acid diazotization, and 1-(3-Sulfophenyl)-3-methyl-5-pyrazolone coupling, and then into calcium salt.
Properties and Applications:brilliant yellow. Suitable for rubber, PVC color, suitable for in addition to PA outside all plastic, solvent resistance excellent.
| Light Fastness | Heat resistance(℃ ) | Sodium carbonate(5%) | Muriatic acid(5%) | Oleic acid | PVC migration | Soap micelle bleeding | |
| Melting point | Stable | ||||||
| 7 | 300 | 5 | |||||
List of Suppliers:
Hostaprint Yellow HGR 32( Clariant GmbH )
PV Fast Yellow H2GR VP 2293 (DyStar GmbH & Co Deutschland KG)
PV Fast Yellow HGR ( Clariant GmbH )
PV Fast Yellow HGR ( Hoechst A G )
Yellow KGR ( Keystone Aniline Corporation )
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