Description

Pigment Red 63:1 is a high-performance, calcium-based lake pigment renowned for its bright, bluish-red shade and excellent stability. This colorant is a critical component for achieving durable and vibrant hues in a wide range of industrial applications. It is primarily sought after by manufacturers in the coatings, plastics, and printing ink industries who require consistent, high-quality pigmentation for their products.

Application

• Industrial Coatings and Paints: Used in automotive finishes, industrial maintenance paints, and decorative coatings for its weather resistance and color strength.
• Plastics and Masterbatch Coloring: Imparts stable red coloration to polyolefins (PP, PE), PVC, and other polymers during processing.
• Printing Inks: A key pigment for offset, flexographic, and gravure inks, especially for packaging and publication printing.
• Textile Printing: Employed in pigment printing pastes for fabrics, offering good wash and light fastness.
• Paper and Specialty Papers: Used in the mass coloration of paper and for coating applications.
• Artist Colors: Found in professional-grade acrylics, oils, and watercolors for its pure hue.
• Leather Finishing: Applied in dyes and finishes for colored leather goods.
• Cosmetic Pigments (for external use): May be used in certain cosmetic formulations where a stable red color is required, subject to regulatory approval.

Basic Information

Product Name	Pigment Red 63:1
CAS No.	6417-83-0
Molecular Formula	C22H14N4O6S2·1/2Ca
Molecular Weight	~ 542.6 g/mol (Calcium salt)
Synonyms	Pigment Red 63:1; C.I. 15880:1; Calcium Lake of C.I. Acid Red 195; Calcium 4-[(5-chloro-4-methyl-2-sulfophenyl)azo]-3-hydroxy-2-naphthalenecarboxylate; Lithol Rubine BCA; Permanent Carmine FBB; Carmine 6B; Red 57:1 (common misnomer); Naphthol AS-BS Calcium Lake
EINECS	229-155-6

Quality Control

Our Pigment Red 63:1 is manufactured under a strict quality management system. Each batch is tested against stringent in-house specifications to ensure consistency in color strength, hue, and physical properties. Key parameters such as purity, residue on sieve, and specific heavy metal content are monitored. A Certificate of Analysis (COA) detailing these results is provided with every shipment to guarantee traceability and compliance with your quality requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents. The product is light-sensitive (store away from light) and hygroscopic (moisture-sensitive); prolonged exposure to high humidity or direct light may affect performance.

Specification

Item	Specification
Appearance	Red Powder
Identification (IR)	Conforms
Color Strength	100 ± 5% (vs. Standard)
Hue	Within agreed tolerance
Residue on Sieve (45μm)	≤ 1.0%
Volatile Matter (at 105°C)	≤ 2.5%
pH Value (10% Aqueous Slurry)	6.0 - 8.0
Specific Heavy Metals (as Pb)	≤ 20 ppm
Specific Heavy Metals (as As)	≤ 3 ppm

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