Description

Pigment Red 188 is a high-performance, synthetic organic pigment renowned for its vivid red hue and excellent durability. This colorant is valued for its strong tinting strength, good lightfastness, and resistance to heat and solvents, making it a reliable choice for demanding applications. It is primarily utilized by manufacturers in the plastics, coatings, and printing ink industries seeking consistent and vibrant coloration.

Application

• Plastics Coloring: For coloring a wide range of polymers, including PVC, polyolefins, and engineering plastics, offering good dispersion and heat stability during processing.
• Industrial Coatings: Imparts durable and weather-resistant color to automotive finishes, industrial machinery coatings, and coil coatings.
• Printing Inks: Used in the formulation of high-quality packaging inks, publication gravure inks, and decorative inks requiring good printability and color strength.
• Masterbatch Production: A key component in the creation of color concentrates and masterbatches for simplified and precise coloring of plastics.
• Synthetic Fibers: Employed in the mass coloration of synthetic fibers like polypropylene and polyester during the spinning process.
• Specialty Applications: Suitable for coloring elastomers, rubber products, and other specialty materials where color consistency is critical.

Basic Information

Product Name	Pigment Red 188
CAS No.	61847-48-1
Molecular Formula	C18H12Cl2N6O4
Molecular Weight	447.23 g/mol
Synonyms	C.I. Pigment Red 188; PR 188; C.I. 12467; Pigment Red 188 (C.I. 12467); 1-[(2-Chloro-5-nitrophenyl)azo]-2-naphthalenol; Naphthol AS-based Red Pigment; Permanent Red FGR; Hostaperm Red FGR; Cromophtal Red 2030
EINECS	263-268-5

Quality Control

Our production of Pigment Red 188 adheres to stringent quality management protocols to ensure batch-to-batch consistency and performance. Key parameters such as color strength, hue, particle size distribution, and rheological properties are rigorously tested. A Certificate of Analysis (COA) detailing specific test results is provided with every shipment to guarantee compliance with your technical 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 incompatible materials and sources of ignition. The product is light-sensitive and should be stored away from direct light exposure.

Specification

Item	Specification
Appearance	Red Powder
Color Strength	100 ± 5% (vs. Standard)
Hue	Conforms to Standard
Purity (HPLC)	> 95%
Volatile Matter	≤ 2.0%
Residue on Sieve (63 µm)	≤ 1.0%
pH Value (10% Aqueous Slurry)	6.0 - 8.0
Oil Absorption	40 - 60 g/100g
Lightfastness (1-8)	≥ 6
Heat Resistance (°C)	≥ 200

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