Description

Pigment Red 58:1 is a high-performance, calcium-based pigment known for its clean, yellowish-red shade and excellent durability. This product is valued for its strong tinting strength, good lightfastness, and resistance to heat and solvents, making it a reliable colorant for demanding applications. It is primarily needed by manufacturers in the plastics, coatings, and printing ink industries seeking consistent and vibrant coloration.

Application

• Plastics Coloring: For coloring PVC, polyolefins, and engineering plastics, offering good dispersion and heat stability.
• Industrial Coatings: Used in automotive finishes, industrial maintenance paints, and coil coatings for its durability.
• Printing Inks: A key component in offset, gravure, and flexographic inks for packaging and publications.
• Masterbatch Production: Ideal for creating concentrated color masterbatches for the plastics industry.
• Synthetic Fibers: For mass coloration of fibers where color fastness is required.
• Rubber Products: Used in the coloration of technical rubber goods and footwear.

Basic Information

Product Name	Pigment Red 58:1
CAS No.	76613-71-3
Molecular Formula	C18H12Cl2N4O6SCa
Molecular Weight	539.38 g/mol
Synonyms	Pigment Red 58:1; Calcium 4-[(5-chloro-4-methyl-2-sulfophenyl)azo]-3-hydroxy-2-naphthalenecarboxylate; C.I. 15825:1; Lithol Rubine BK; Permanent Red FGR; Red 58:1 Lake; Rubine Toner; Calcium Lithol Rubine; C.I. Pigment Red 58:1; Pigment Red 58 Calcium Salt
EINECS	Contact for details

Quality Control

Our Pigment Red 58:1 is manufactured under a stringent quality management system to ensure batch-to-batch consistency and performance. Quality is verified through comprehensive testing of parameters such as color strength, hue, particle size distribution, and chemical purity. Certificates of Analysis (COA) documenting these results are available for every shipment upon request.

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). This material is hygroscopic (moisture-sensitive) and light-sensitive; prolonged exposure to humidity or direct light should be avoided to maintain product integrity.

Specification

Item	Specification
Appearance	Red Powder
Color Strength	100 ± 5% (vs. Standard)
Hue	Within agreed tolerance
Moisture Content	≤ 2.0%
Residue on Sieve (45μm)	≤ 0.5%
pH Value (10% Aqueous Slurry)	6.0 - 8.0
Oil Absorption	40 - 60 g/100g
Lightfastness	≥ 6 (ISO 105-B02)
Heat Resistance	≥ 200°C

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