Naphthol AS-PH (CAS: 92-74-0)
Appearance: Light beige brown powder
Color shade(with standard):similar
Insoluble in Alkali:≤0.4%
BON acid content:≤0.4%
Reidue on 60 Msieve(or 80 Masrequest):≤5%
Use: This product is mainly used as organic pigment intermediate. It can produce pigment red 170,pigment orange 22. This product can also be used for dyeing cotton yarn, cotton fabric, vinylon, cotton fibers, viscose and silk and it is generally not used for printing. This product has low affinity to cotton and moderate coupling ability.
Since 2001, Qingdao Longyuntong Corporation has developed to be a leading manufacturer of Azoic Dyes (Naphthol AS series and Bases) with annual output over 8000 MTs. It is the qualified supplier for global pigment manufacturers.
It provides high-performance organic and inorganic pigments to meet the high demand of industrial and architectural coatings, for the agricultures industry, for the plastics industry, for special applications as well as colorants used in different printing inks.
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