Pigment Brown 3
Name:C.I.Pigment Brown 3,C.I.21010:2
Molecular Structure: Double azo
C.I.Pigment Brown 3,C.I.21010:2,CAS 1325-24-2,388.47,C21H24N8
Molecular Formula:C21H24N8
Molecular Weight: 388.47
CAS Registry Number:1325-24-2
Manufacturing Methods :use 2 Moore’s Nitrous acid treatment 3 Moore’s 4-Methylbenzene-1,3-diamine (this product may be based on the double azo dyes as the main component of the mixture), and phosphorus molybdenum acid treatment.
Properties and Applications: brown. Soluble in ethanol and acetone, soluble in water. With C.I.Basic Brown 4, C.I.Solvent Brown 12 and the chemical structure of the same, for the dye of phosphorus molybdenum acid salt complex.
| Light Fastness | Heat resistance(℃ ) | Sodium carbonate(5%) | Muriatic acid(5%) | Oleic acid | PVC migration | Soap micelle bleeding | |
| Melting point | Stable | ||||||
| Well | Good | Good(Slightly faded) | Good(Slightly faded) | Well | Bleeding | ||
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