Introduction
NaphtholAS-E CAS92-78-4 is a light beige powder. Dissolved in o-dichlorobenzene,soluble in caustic soda solution was yellow, insoluble in water and soda solution. It is mainly used for cotton fiber dyeing and printing of the primer, can also be used as lake pigment intermediates.
Specification
Appearance: Beige powder
Assay: ≥99%
Color light: Near to standard substance
Intensity, molecule: 100±5 of standard substance
Melting point(dry product): 257°C
2.3 acid content: ≤0.1%
Unsoluble substance content in basic liquor: ≤0.15%
Application
Naphthol AS-E 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.
Packing
25kg/bag
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