Pigment Red 2

Chemical Properties

yellowish red or dark red powder

General Description

Yellowish red solid with a tint of pink or dark red powder.

Air & Water Reactions

Azo dyes can be explosive when suspended in air at specific concentrations. Insoluble in water.

Reactivity Profile

Pigment Red 2 is an azo compound. Azo, diazo, azido compounds can detonate. This applies in particular to organic azides that have been sensitized by the addition of metal salts or strong acids. Toxic gases are formed by mixing materials of this class with acids, aldehydes, amides, carbamates, cyanides, inorganic fluorides, halogenated organics, isocyanates, ketones, metals, nitrides, peroxides, phenols, epoxides, acyl halides, and strong oxidizing or reducing agents. Flammable gases are formed by mixing materials in this group with alkali metals. Explosive combination can occur with strong oxidizing agents, metal salts, peroxides, and sulfides.

Fire Hazard

Flash point data for Pigment Red 2 are not available, however Pigment Red 2 is probably combustible.

Flammability and Explosibility

Not classified

Properties and Applications

TEST ITEMS	SPECIFICATION
APPEARANCE	RED POWDER
SHADE	BLUISH
HEAT RESISTANCE	140 °C min
LIGHT FASTNESS	5~6
ACID RESISTANCE	4
ALKALI RESISTANCE	4
FASTNESS TO BLEEDING	5
OIL ABSORPTION	40-45%
SPECIFIC SURFACE	25 m 2 /g
DENSITY	1.60 g/cm 3
RESIDUE ON 80 MESH	5.0% max
WATER SOLUBLE	1.0% max
VOLATITE 105 °C	1.0% max
TINTING STRENGTH	100-105 %