Description

Pigment Red 49:1 is a high-performance, calcium-based salt of a lithol red pigment, valued for its clean, bright red hue and excellent stability. This pigment is a cornerstone for producing durable, cost-effective red colors in a variety of industrial applications. It is primarily sought after by manufacturers in the printing, plastics, and coatings industries who require consistent color strength and good dispersion properties.

Application

• Printing Inks: A primary colorant for offset, flexographic, and gravure inks, especially for packaging and publications.
• Plastics Coloring: Used for the mass coloration of PVC, polyolefins, and other polymers, offering good heat stability.
• Industrial Coatings: Imparts a bright red shade in air-dry and baked industrial paint systems.
• Rubber Products: Employed in the coloring of technical rubber goods and footwear.
• Paper Coatings: Provides coloration in coated paper and paperboard applications.
• Textile Printing: Used in pigment printing pastes for fabrics.

Basic Information

Product Name	Pigment Red 49:1
CAS No.	1103-38-4
Molecular Formula	C18H12CaN2O6S2
Molecular Weight	456.50 g/mol
Synonyms	Lithol Red Calcium Salt; C.I. Pigment Red 49:1; Calcium 2-[(2-hydroxy-1-naphthyl)azo]-1-naphthalenesulfonate; Permanent Red 2B; Red Lake C; Pigment Red 49 Calcium Lake; C.I. 15630:1; 2-Naphthalenecarboxamide, N-(2-hydroxy-1-naphthalenyl)-3-oxo-, calcium salt (2:1)
EINECS	214-170-9

Quality Control

Our Pigment Red 49:1 is manufactured under a strict quality management system to ensure batch-to-batch consistency. Each lot is tested against key parameters including color strength, shade, particle size distribution, and chemical purity. A comprehensive Certificate of Analysis (COA) detailing these results is provided with every shipment to guarantee compliance with your specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at ambient temperature (15-25°C). Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Bright Red Powder
Color Strength	100 ± 5% (vs. Standard)
Hue	Within agreed tolerance
Volatile Matter (105°C)	≤ 2.0%
Water Soluble Matter	≤ 1.5%
pH Value (10% Aqueous Slurry)	6.0 - 8.0
Particle Size (Residue on 45μm)	≤ 0.5%
Lightfastness	≥ 5 (ISO 105-B02)
Heat Resistance	≥ 180°C

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.