3564-09-8

Dark red crystals or red powder.

PONCEAU 3R(3564-09-8) 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.

Azo dyes can be explosive when suspended in air at specific concentrations. Water soluble.

Prohibited by FDA for use in foods, drugs, cosmetics. Possible carcinogen.

Flash point data for this chemical are not available; however, PONCEAU 3R is probably combustible.

Dark-red powder. Soluble in water and acids to form a cherry-red solution; slightly soluble in alcohol; insoluble in alkalies.

Dyeing wool. Colorant in food, drugs and cosmetics.