Pigment Red 2 Chemical Properties

Melting point:

310-311°C

Boiling point:

595.2±50.0 °C(Predicted)

Density 

1.38±0.1 g/cm3(Predicted)

vapor pressure 

0Pa at 25℃

solubility 

8.63mg/L in organic solvents at 20 ℃

form 

Solid

pka

10.63±0.50(Predicted)

color 

Red to Dark Red

Water Solubility 

<0.1 g/100 mL at 19 ºC

Stability:

Stable. Incompatible with strong oxidizing agents.

LogP

3.2 at 23℃

CAS DataBase Reference

6041-94-7(CAS DataBase Reference)

EPA Substance Registry System

C.I. Pigment Red 2 (6041-94-7)

MSDS

• Language:English Provider:4-[(2,5-Dichlorophenyl)azo]-3-hydroxy-N-phenylnaphthalene-2-carboxamide

Pigment Red 2 Usage And Synthesis

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

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