Organic Pigments

Pigment Red 2

Also Known As:C.I. 1231012310Naphthol AS

Pigment Red 2 affords medium red shade, somewhat yellower than the Naphthol AS pigment Pigment Red 112. Its main area of application is the printing inks.

Pigment Red 2 - 1

Key Features

Good dispersion and processing performance
Bright shade and good color strength
Heat resistance up to 150°C (system dependent)
Light fastness: 6 (scale 1–8)
Suitable for general-purpose applications

Technical Specifications

C.I. NO.12310
CAS NO.6041-94-7
EU NO227-930-1
Molecular FormulaC23H15CI2N3O2
Chemical GroupNaphthol AS
Moisture≤2.0
Water Soluble Matter≤1.5
Electric Conductivity≤500
Fineness (80 mesh)≤5.0
pH Value6.5-7.5

Physical Data & Fastness Properties

Acid Resistance4
Alkali Resistance5
Alcohol Resistance4
Ester Resistance3
Benzene Resistance3
Soap Resistance5
Heat Resistance150
Light Fastness6

Application Fields

This product is widely used in the following application fields, providing excellent coloring performance and durability:

  • General-purpose inks
  • Paints and coatings
  • Plastics coloring
  • Masterbatch production

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Usage Instructions

Recommended dosage: 0.3–3.0% depending on color strength and application. For plastics/masterbatch, pre-disperse with suitable carrier resin and dispersant; for inks/coatings, mill to target fineness. Processing temperature should be controlled below 150°C (system dependent). Ensure good ventilation and use appropriate PPE. Store sealed in a cool, dry place.

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