Index Number: Pigment Yellow 191
C.I. Structure Number: 18795
Chemical Category: azo lake pigments
Molecular formula: C₁₇ H₁₃ C1N₄O₇ S₂Cₐ
Relative molecular mass: 524.99
Ranbar yellow P3470/P3472 is a kind of yellow high temperature resistant azo lake organic pigment, Pigment Yellow 191. The two types of this yellow pigment, P3470 are more reddish than P3472. The shade is similar to CI Pigment Yellow 83, and the color power is lower, But excellent heat resistance, in high-density polyethylene (HDPE, 1/3 standard depth) heat resistance is 300 ℃, does not produce dimensional deformation, has good light fastness (7~8);
Excellent migration resistance in plastic PVC; temperature resistance up to 330°C in polycarbonate, and resistance to organic solvents.
