AS-D NAPHTHOL

CAS No.: 135-61-5

Chemical formula: C18H15NO2

Molecular weight: 277.28

Melting point: 195～196℃

Appearance: light yellow brown powder

Property Description:

The product is beige powder with a melting point of 195-196°C. Soluble in naphtha, insoluble in water and sodium carbonate solution, yellow in sodium hydroxide solution.

Uses:

It is mainly used as a primer for cotton fabric dyeing and printing, and as an intermediate for fast pigments and organic pigments.

Production method: from 2,3-acid and chlorobenzene; sodium carbonate salt; dehydration, and then condensation with o-toluidine in the presence of phosphorus trichloride, neutralized by sodium carbonate; evaporation dechlorinated benzene, filtration; drying and Get the finished product.

PIC: Pepper Wang
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