Description

4-[(4-Chloro-5-Methyl-2-Sulphophenyl)Azo]-3-Hydroxy-2-Naphthoic Acid, Calcium Strontium Salt is a high-performance, metallized azo pigment salt designed for demanding industrial applications. This compound is valued for its excellent color properties and stability, making it a critical component in formulations requiring durable coloration. It is primarily utilized by manufacturers in the pigment, plastics, and specialty coatings industries seeking reliable and consistent performance.

Application

• Primary Pigment for Plastics: Used in the coloration of polyolefins (PP, PE), PVC, and engineering plastics, offering good heat stability and dispersion.
• Industrial Coatings and Paints: Imparts durable color to industrial finishes, including coil coatings and automotive refinishes, where lightfastness and chemical resistance are required.
• Printing Inks: Employed in the formulation of specialty printing inks, including packaging and decorative inks, for its color strength and rheological properties.
• Masterbatch Production: A key colorant in the creation of concentrated pigment preparations for simplified downstream processing in polymer manufacturing.
• Synthetic Fibers: Used in the mass coloration of synthetic fibers such as polyamide and polyester during the polymerization or spinning process.

Basic Information

Product Name	4-[(4-Chloro-5-Methyl-2-Sulphophenyl)Azo]-3-Hydroxy-2-Naphthoic Acid, Calcium Strandium Salt
CAS No.	85005-84-1
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	C.I. Pigment Red 48:4; Calcium strontium 4-[(5-chloro-4-methyl-2-sulfophenyl)azo]-3-hydroxy-2-naphthalenecarboxylate; Pigment Red 48:4; PR 48:4; 2-Naphthalenecarboxylic acid, 4-[(5-chloro-4-methyl-2-sulfophenyl)azo]-3-hydroxy-, calcium strontium salt (1:?); Calcium Strontium Lake of 3-Hydroxy-4-[(2-hydroxy-1-naphthyl)azo]-2-naphthoic acid; Permanent Red 2B (Calcium Strontium Type)
EINECS	Contact for details

Quality Control

Our 4-[(4-Chloro-5-Methyl-2-Sulphophenyl)Azo]-3-Hydroxy-2-Naphthoic Acid, Calcium Strontium Salt is produced under a stringent quality management system. Every batch undergoes rigorous analytical testing to ensure consistent coloristic properties, purity, and performance. A comprehensive Certificate of Analysis (COA) detailing key parameters such as shade, strength, and impurity profile is provided with each shipment to guarantee compliance with your specifications.

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 product is hygroscopic (moisture-sensitive); the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect performance.

Specification

Item	Specification
Appearance	Red Powder
Identification (IR)	Conforms
Color Strength	100 ± 5% (vs. Standard)
Hue	Within agreed tolerance
Moisture Content	≤ 2.0%
Residue on Sieve (45μm)	≤ 1.0%
pH Value (10% Aqueous Slurry)	6.0 - 8.0
Heavy Metals (as Pb)	≤ 50 ppm

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