Description

Pigment Red 48:3 is a high-performance, calcium-based salt of the versatile BONA pigment series, known for its excellent color strength and durability. This specific grade, CAS NO 15782-05-5, offers superior heat stability and lightfastness compared to its barium and strontium counterparts, making it a critical component for demanding applications. It is primarily sought after by manufacturers in the plastics, coatings, and printing ink industries who require a reliable, vivid red shade with strong opacity and good migration resistance.

Application

Pigment Red 48:3 is a versatile colorant used across multiple industrial sectors. Its key applications include:

• Plastics Coloring: For polyolefins (PP, LDPE, HDPE), PVC, and engineering plastics, providing excellent dispersion and heat stability during processing.
• Industrial Coatings: Imparts durable and weather-resistant color to industrial finishes, automotive refinishes, and coil coatings.
• Printing Inks: Used in solvent-based and publication gravure inks, flexographic inks, and other specialty ink formulations.
• Masterbatch Production: A preferred choice for creating color concentrates and compounds for the plastics industry.
• Synthetic Fibers: For the mass coloration of fibers where consistent color and fastness properties are required.

Basic Information

Item	Detail
Product Name	Pigment Red 48:3
CAS No.	15782-05-5
Molecular Formula	C18H11ClN2O6SCa
Molecular Weight	458.89 g/mol
Synonyms	Pigment Red 48:3; Calcium 4-[(5-chloro-4-methyl-2-sulfophenyl)azo]-3-hydroxy-2-naphthalenecarboxylate; C.I. 15865:3; Lithol Rubine BK Ca; Permanent Red 2B Ca; Red 48:3; BONA Red Calcium Salt; Naphthol Red; 2B Red Calcium Toner
EINECS	239-879-2

Quality Control

Our Pigment Red 48:3 is manufactured under a strict quality management system. Every batch undergoes comprehensive testing for key parameters including color strength, hue, particle size distribution, and chemical purity to ensure consistency and performance. A Certificate of Analysis (COA) detailing these results is provided with each shipment to guarantee compliance with your specifications and industry standards.

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 incompatible materials. Due to its light-sensitive nature, prolonged exposure to direct light should be avoided to maintain optimal color properties.

Specification

Item	Specification
Appearance	Red Powder
Color Strength	100 ± 5% (vs. Standard)
Hue	Conforms to Standard
Lightfastness	≥ 6-7 (ISO 105-B02)
Heat Stability	≥ 260°C
Oil Absorption	40 - 60 g/100g
Residue on Sieve (325 mesh)	≤ 0.5%
Moisture Content	≤ 2.0%
pH Value (10% Aqueous Slurry)	6.5 - 8.5

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