NAPHTHOL AS
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Items:Naphthol AS C.I. : 37505 CAS: 92-77-3 Chemical Formula：C17H13NO2
Appearance: Beige powder Color shade(with standard):similar Strength:100±3%Purity:≥98.5% Melting point:≥247℃ Insoluble in Alkali:≤0.15% BON acid content):≤0.10% Reidue on 60 Msieve(or 80 Masrequest):≤5% |
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This product is also commonly used as primer, widely used in cotton fabric dyeing and printing. When cotton is dyed, its affinity to cotton is low, and the coupling capacity is moderate, and the coupling pH value is determined according to the heavy nitrogen component of ice dyeing. Can also be used for cotton yarn, polyester / cotton, viscose, silk, vinylon fiber dyeing and vinegar, can also direct printing with reactive dyes, cotton fabric with India and resist printing, discharge printing, reactive dye color resist printing, and used in the manufacture of fast fast fast sulfonyl amine hormone pigment, pigment.