Pigment Red 3

Brand	Fineland Chem
Color Index	Pigment Red 3
Color Index No	12120
CAS No	2425-85-6
EC No	219-372-2
Chemical Group	β – Naphthol
Chemical Formula	C₁₇H₁₃N₃O₃

Introduction

Pigment Red 3, also widely known as Toluidine Red, is a synthetic organic pigment belonging to the monoazo chemical class. First synthesized in 1905, it’s recognized for its vibrant, yellowish-red to red hue.

It offers a high tinting strength and a bright scarlet shade, making it a popular choice for achieving intense red colors. Pigment Red 3 finds extensive use in various applications, particularly in paints (especially air-drying paints and some interior emulsion paints) and printing inks. It’s also used in areas like plastics, rubber products, and artist materials (like crayons and watercolors).

Best Sellings

PR3 – DuraPaint®6503H ⬇️TDS
Designed for Industrial paint, Decorative water/solvent-base paint etc. High color strength and bright scarlet shade.

Physical Properties

Test Item	Specification
Density (g/cm3 )	1.34-1.52
Specific Surface Area(m2/g)	8-25
Oil Absorption(g/100g)	35-50
PH Value	6.5-7.5
Bulk Density (lb/gal)	11.1-12.6
Total impurities(ppm)	≤600

Fastness Properties (5=excellent, 1=poor) | Light Fastness (8=excellent, 1=poor)

Heat Resistance (℃)	160	Alkali Resistance (1-5)	5
Light Resistance (Full Shade, 1-8)	5-6	Migration Resistance(1-5)	4
Light (Reduced tinting, 1-8)	5	Ethyl Acetate (1-5)	3
Weather Resistance (1-5)	3-4	Ethanol (1-5)	3
Acid Resistance (1-5)	5	MEK (1-5)	2-3

Application

Printing Inks: Pigment red 3 has a bright color and moderate lightfastness, and is commonly used in various types of printing inks.
Paints and Coatings: Used in industrial coatings and decorative paints.
Plastics: Suitable for coloring plastics, although its use may be limited by its moderate lightfastness.
Lightfastness: Pigment red 3 has moderate lightfastness, which may limit its use in applications requiring prolonged exposure to sunlight. If a brighter red is required, Pigment Red 254 or Red 178 can be used instead.

Application

Printing Ink: Discover high-performance ink pigments for various printing technologies including water-based, solvent-based, offset, inkjet, UV curing, and decorative applications. More Details

Paint and Coating: Explore a wide range of coating pigments tailored for paints, oils, automotive finishes, industrial applications, concrete, cement, and ceramics. More Details

Plastic: Browse a comprehensive selection of plastic pigments designed for PE, PVC, EVA, rubber, and a variety of engineering plastics. More Details

Special Applications: Find specialized pigments offering unique effects and functionalities for textiles, resins, glazes, metallic finishes, fluorescence, and anti-corrosion needs. More Details

Package and Delivery

● 25KG Kraft bag, 500KG Carton Box.
● Lead Time: Normally around 15 days after signed contract.

Advantages

Vibrant and Strong Color: It provides a very bright, clean yellowish-red to scarlet hue with high tinting strength, making it excellent for achieving intense red shades.

Good Opacity: It generally offers good hiding power, which is beneficial in paint and coating applications.

Cost-Effective: Compared to many other organic red pigments, Pigment Red 3 is relatively economical, offering a good balance of performance and price.

Versatile for Indoor Use: It’s a popular choice for applications where high lightfastness under diluted conditions or extreme outdoor durability aren’t the absolute highest priority. This includes many types of inks (especially for publications), some general-purpose paints, and certain plastic applications.

Essentially, Pigment Red 3 is valued for its striking color, strong coloring power, and affordability, making it a practical option for a range of less demanding or cost-sensitive applications.