Pigment Red 63:1 CAS#6417-83-0

Pigment Red 63:1, also known as Lisol Purple Red, Lisol Purple Sauce 2R, etc., has the following basic information:
EINECS No.: 229-142-3
Molecular formula: C_{21} H_{12} CaN_{2} O_{6} S
Molecular weight: 460.4728
Solubility: insoluble in water, slightly soluble in ethanol.
Color and hue: jujube red.
It is blue-red in concentrated sulfuric acid, and brown-red after dilution; it is dark red when it meets concentrated nitric acid; it is a brown-red solution in sodium hydroxide (concentrated).
Relative density: 1.42
Bulk density /(lb/gal): 11.8
pH value /(10% slurry): 6.5-8.0
Oil absorption /(g/100g): 45-67
This pigment is a calcium salt lake, giving a deep blue-red color, with good solvent resistance, and only slight bleeding to solvents such as alcohols, ketones, and aromatics, but with average light fastness, the natural color is level 4, and it is not suitable for outdoor coloring. It is mainly used for low-cost coating coloring, and can also be used for coloring artificial leather, plastic rubber and rubber products, as well as offset ink, water-based paint, industrial coatings, plastic rubber, coating printing, cultural and educational supplies and other fields.