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Pigment Red 50:2

Name:C.I.Pigment Red 50:2,C.I.15500:2

Molecular Structure: Single azo

C.I.Pigment Red 50:2,C.I.15500:2,CAS 6373-04-2,292.29,C17H12N2O3

C.I.Pigment Red 50:2,C.I.15500:2,CAS 6373-04-2,292.29,C17H12N2O3

Molecular Formula:C17H12N2O3

Molecular Weight: 292.29

CAS Registry Number:6373-04-2

Manufacturing Methods :2-Aminobenzoic acid diazotization, and Naphthalen-2-ol coupling, and then into calcium salt

Properties and Applications:red light orange, shallow blue light pink. Slightly soluble in water (orange) and ethanol. Melting point 176 ℃ (from the glacial acetic acid crystal). In concentrated sulfuric acid in scarlet, dilution have orange precipitation. Pigment solution to join hydrochloric acid have orange precipitation; Add sodium hydroxide into darker orange.

Light Fastness Heat resistance(℃ ) Sodium carbonate(5%) Muriatic acid(5%) Oleic acid PVC migration Soap micelle bleeding
Melting point Stable
176 Stable (to 120)

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