Pigment Red 49:1-Corimax Red RW

Technical parameters of Pigment Red 49:1

Color Index No.Pigment Red 49:1
Product nameCorimax Red RW
Product categoryOrganic Pigment
Light Fastness(coating)3
Heat Resistance(coating)160
Hue distribution

Recommended for offset ink.
Suggested for water based inks.

MSDS(Pigment Red 49:1)


Related Information

English alias: 15630: 1; CI Pigment Red 49, barium salt (2: 1); Barium lithol red; 2- (2-Hydroxy-1-naphthylazo) -1-naphthalenesulfonic acid barium salt (2: 1); Barium bis [2- (2-hydroxy-1-naphthylazo) -1-naphthalenesulfonate]; D & C Red No.12; Lithol Red BA; Pigment Red 49 (Ba); RED R; CI PIGMENT RED 49: 1; barium bis { 2-[(2Z) -2- (2-oxonaphthalen-1 (2H) -ylidene) hydrazinyl] naphthalene-1-sulfonate}; barium bis {2-[(E)-(2-hydroxynaphthalen-1-yl) diazenyl ] naphthalene-1-sulfonate}
CAS number: 1103-38-4
EINECS number: 214-160-6
Molecular formula: C40H26BaN4O8S2
Molecular weight: 892.1134
InChI: InChI = 1 / 2C20H14N2O4S.Ba / c2 * 23-18-12-10-13-5-1-3-7-15 (13) 19 (18) 22-21-17-11-9-14- 6-2-4-8-16 (14) 20 (17) 27 (24,25) 26; / h2 * 1-12,23H, (H, 24,25,26); / q ;; + 2 / p-2 / b2 * 22-21 +;

Molecular Structure:

Physical and chemical properties:
Solubility: Slightly soluble in ethanol, acetone, and hot water; red light purple in concentrated sulfuric acid, which turns into red light brown precipitate after dilution; brown red solution in case of concentrated nitric acid; Add hydrochloric acid to the solution to turn brown-purple.
Hue or light: neutral red
Relative density: 1.48-1.90
Bulk density / (lb / gal): 12.3-15.8
Average particle size / μm: 0.10
Particle shape: rod
Specific surface area / (m2 / g): 32-67
pH value / (10% slurry): 7.7-8.7
Oil absorption / (g / 100g): 40-65
Covering power: translucent
Red powder with strong tinting power but poor hiding power. Slightly soluble in hot water, ethanol, acetone and sodium hydroxide solution, soluble in sulfuric acid for ray purple, light reddish purple when diluted, and then red-brown precipitate, in case of nitric acid, it is brown-red solution, other properties are general.
Product Usage:
The pigment variety is a barium salt lake, giving a neutral red light. Due to the unsatisfactory heat resistance, it is limited in applications to plastics; it is mainly used for printing ink coloring, especially for publishing gravure inks, resinization The processed dosage form can reduce its copper luster phenomenon; the special dosage form is suitable for water-based printing inks; there are as many as 54 brand names on the market.
More economical pigment varieties. It is mainly used for coloring pigments such as watercolors and oil paints for inks and stationery, and can also be used for coatings.