Introduction
Naphthol AS-D(CAS 135-61-5) is a beige power, solvent naphtha soluble, insoluble in water and soda solution. Naphthol AS-D is the primary red primer for cotton-dyed fibers, mainly used in the production of insoluble azo dyes and for cotton fiber, viscose fiber and some synthetic fiber dyeing printing.
Specification
Appearance: Ecru powder
Assay: ≥99%
Color light Near to standard substance
Intensity, molecule: 100±5 of standard substance
Melting point(dry product): 194°C
2.3 acid content: ≤0.08%
Unsoluble substance content in basic liquor: ≤0.14%
Application
Naphthol AS-D is the primary red primer for cotton-dyed fibers, mainly used in the production of insoluble azo dyes and for cotton fiber, viscose fiber and some synthetic fiber dyeing printing.
25kg/bag
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