contact for fd&c red 40 fd&c red 40 by Standardcon

Pigment Intermediates
Pigment Intermediates are complex chemicals that are designed to add special properties, when small quantities of such are included while formulating specific products. Pigment intermediates find a vast application in the color-producing industries, like textiles, inks, paper, and coatings and a host of others.

Some of the common types of Pigment Intermediates and their properties are given here.

2-Naphthol

Appearance Primary melting point Purity % 1-Naphthol content %
Grey white slice or even powder. around 120 degree C for the first grade, 119.5 degree C for second grade. 99.1% for the first grade, and around 98.6 for the second grade. 0.20 for the first grade, while 0.30 for second grade.


Uses: This type of pigment intermediates are primarily used in making phenol AS. Also in medicine and organic pigments.

Tobias Acid

Physical properties of Tobias acid
  • White crystalization
  • Slight solubility in cold water
  • Soluble in hot water
  • but sparsely soluble in ethanol and ether.
Uses: Primary use as azo dyestuff and as azo pigment intermediates.

Phenol AS

Purity Min of 97.5%
Appearance Cream or a slightly red powder
Primary melting point (of dried product) min. 246oC
Strength (+) 3% to standard
Matter insoluble in lye Maximum of 0.4%

Uses: Phenol AS is used as color base for dyestuff, giving colour to cotton and viscose fiber, preparing fast pigment dyestuff and also organic dyestuff.

Intermediate for Pigment Red 185

Specifications

Amino value: minimum 98.5%
Purity(hplc): 99% minimum
Insoluble: 0.1% max


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