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Naphthol AS-PH CAS 92-74-0 is a kind of light yellow powder, can soluble in caustic soda solution. Naphthol AS-PH is mainly used for dyeing cotton, used alone or in combination with red base KB, RL AL with dyed bright yellow light red or red salt.
Specification
Appearance: Beige powder
Assay: ≥99%Color light: Near to standard substance
Intensity, molecule: 100±3 of standard substance
Melting point(dry product): 157°C
2.3 acid content: ≤0.09%
Unsoluble substance content in basic liquor: ≤0.13%
Application
1)Naphthol AS-PH is mainly used for dyeing cotton, used alone or in combination with red base KB, RL AL with dyed bright yellow light red or red salt.
2)Naphthol AS-PH is also used for whalen, viscose fiber, silk, polyamide fiber, diacetate fiber dyeing, is generally not used for printing.Packing
25kg/bag
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