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HP YELLOW 13130 / PIGMENT YELLOW 191

Pigment Yellow 191

P.Y.191 displays excellent solvent fastness in aliphatic and in aromatic hydrocarbons, as well as in the commonly used plasticizers. The pigment is almost completely fast to alcohols and esters but not to water, ketones and methylglycol. P.Y.191 is also used for hot melting traffic paints in the USA.

Four new crystal modifications of P.Y.191 have been described supplementing  the known alpha-phase. Phase conversions were achieved by solvation of the alpha-phase in high boiling organic solvents with subsequent cooling: the-phase by recrystallizing from NMP (180°C), DMAA or DMSO; the alpha-phase from diethyleneglycol dimethylether (150–170°C), the alpha-phase from ethyleneglycol (170–200°C) and the alpha-product from DMF.

Quantity:

HP   YELLOW 13130
C.I.PY191


Chemical Composition:                    
Color   Index:Pigment Yellow   191
C.I.NO.:18795
Chemical Formula:         C17H13ClN4O7S2Ca
CAS NO.:                  129423-54-7
EU NO.:                   403-530-4


Physical Properties:                       
Physical Form :            Yellow   Powder                 
Heat Resistance(º C):          300
Density (g/cm3):      1.8
Specific Surface(/g):20
PH Value:                 6.5-7.5
Oil Absorption(ml/100g):     45


Fastness Properties:                      
Dispersibility:             Excellent                    
Light Fastness:            7
Migration Resistance5

Recommended Application


plastics: PVC, rubber, PS, PP, ABS, PE, PU, etc.


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