Pigment Yellow 191


Pigment Yellow 191

  • C.I. NO. : 18795
  • CAS NO. : 129423-54-7
  • EU NO. : 403-530-4
  • Molecular Formula : C17H13CIN4O7S2Ca
  • Chemical Group : Monoazo pyrazolone, Ca

Pigment Yellow 191 with Exceptional Heat Stability

Hangzhou Origo Chemical Co., Ltd is a genuine bulk manufacturers and suppliers of high-performance pigment yellow 191 with extra ordinary heat stability. We are distinguished suppliers and manufacturers of yellow pigment 191 with best features for all kinds of applications at the best price. It is an economical reddish yellow shade similar to the pigment yellow 83. It has excellent heat stability and resistance properties, and displays good light fastness as well.

The color pigment is mainly used for plastics and limited coatings. The pigment is an ideal replacement option for diarylide and lead chromate pigments. It has a density of 1.77 g/cm³ and an average particle size of 296 nm. This pigment is suitable for low warping applications and cable sheathing as well. For plastics, it can be found being used with polypropylene fibers, polystyrene, PUR, PVC, polyolefin, PC, rubber and ABS. Pigment yellow 191 has a heat stability of 570°F / 299°C with plastics. We use excellent and top of the line raw material for the manufacturing of our organic pigments to ensure highest quality standards and the best price.

Physical Data and Fastness Properties
  • Moisture (%) :≤1.5
  • Water Soluble Matter (%) :≤1.0
  • Oil Absorption (ml/100g) :35-45
  • Electric Conductivity (us/cm) :≤500
  • Fineness (80mesh) % :≤5.0
  • PH Value :6.5-7.5
  • Acid Resistance :5
  • Alkali Resistance :5
  • Alcohol Resistance :5
  • Ester Resistance :5
  • Benzene Resistance :5
  • Ketone Resistance :5
  • Soap Resistance :5
  • Bleeding Resistance - :5
  • Migration Resistance :5
  • Heat Resistance (℃) :280
  • Light Fastness (8=excellent) :7

1. Plastics: used for PVC, HDPE, PP, etc.

2. Coatings: used for hot melting traffic paints.

Available Commercial Specific Grades:

Fast Yellow HGR

For more, contact us with your specific applications, we shall offer the best solution for you.


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