Pigment Intermediates Pigment intermediates find a vast application in the color-producing industries, like textiles, inks, paper, and coatings and a host of others.
Pigment Intermediates are complex chemicals that are designed to add special properties, when small quantities of such are included while formulating specific products. Some of the common types of Pigment Intermediates and their properties are given here 2-Naphthol
*.Appearance:Grey white slice or even powder.
*.Primary melting point:Around 120 degree C for the first grade, 119.5 degree C for second grade.
*.Purity %:99.1% for the first grade, and around 98.6% for the second grade.
*.1-Naphthol content %:0.20 for the first grade, while 0.30 for second grade.
*.Uses:In making phenol AS. Also in medicine and organic pigments.
Phenol AS
*.Purity:Min of 97.5%
*.Appearance:Cream or a slightly red powder
*.Primary melting point (of dried product):min. 246 degree C
*.Strength:(+) 3% to standard
*.Matter insoluble in dye:Maximum of 0.4%
Uses:Phenol AS is used as color base for dyestuff, giving color to cotton and viscose fibre, preparing fast pigment dyestuff and also organic dyestuff.
Tobias Acid
Physical properties of Tobias acid
*.Slight solubility in cold water
*.White crystallization
*.Soluble in hot water
*.but sparsely soluble in ethanol and ether.
*.Matter insoluble in dye:Maximum of 0.4%
Uses:Primary use as azo dyestuff and as azo pigment intermediates.
Intermediate for Pigment Red 185
Specifications:
*.Amino value:minimum 98.5%
*.Purity(hplc):99% minimum
*.Insoluble:0.1% max
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