Pigment orange 43-Corimax Orange GR

Technical parameters of Pigment orange 43

Color Index No.	Pigment orange 43
Product name	Corimax Orange GR
Product category	Organic Pigment
Light Fastness(coating)	7
Heat Resistance(coating)	200
Light Fastness(plastic)	7-8
Heat Resistance(plastic)	280
Color
Hue distribution

Application：
Recommended for automotive paints, industrial paints, powder coatings, printing pastes, PVC, rubber, PS, PP, PE, PU, water based inks, solvent inks, UV inks.
Suggested for  architectural coatings, coil coatings, offset inks.

Molecular Structure:

Physical and chemical properties:

Solubility: Insoluble in acetone, alcohol, chloroform and toluene, slightly soluble in o-chlorophenol and pyridine; dark red light yellow in concentrated sulfuric acid; olive color (red fluorescence) in alkaline insurance powder, red light in case of acid brown.
Hue or light: orange, red light orange.
Relative density: 1.49-1.87
Bulk density / (lb / gal): 12.4-15.6
Melting point / ℃: 460
Average particle size / μm: 0.07
Particle shape: rod-shaped body
Specific surface area / (m2 / g): 46 (GR)
pH value / (10% slurry): 7
Oil absorption / (g / 100g): 96
Covering power: transparent type

Product use:

The molecular structure of the pigment is trans isomer, giving red light orange. Hostaperm Orange GR has a specific surface area of 46 m2 / g. Light and weather fastness grade 7-8. Used for the coloring of acrylonitrile (PAN) puree (cloth, canvas, and tent), transparent polystyrene coloring, soluble in thermoplastic polyester to give a yellow color; metallic luster in paint with metallic aluminum paste; acid / alkali resistance Excellent, also suitable for outdoor latex paint coatings.

Synthesis principle:

Condensation reaction of 1,4,5,8-naphthalenetetracarboxylic acid with o-phenylenediamine at 120 ° C in glacial acetic acid medium to generate cis (blue-red) and trans (yellow-red) The mixture was separated by means of different solubility in potassium hydroxide-ethanol solution, heated at 70 ° C for 1H, the trans isomer was precipitated, filtered, and the crude pigment was hydrolyzed to prepare CI Pigment Orange 43 by pigmentation treatment.