Description

Pigment Black 34 is a high-performance, inorganic black pigment based on copper chromite. This compound is valued for its excellent thermal stability, chemical resistance, and deep, durable black coloration. It is essential for manufacturers requiring consistent, high-quality pigmentation in demanding environments. Primary industrial users include the plastics, coatings, ceramics, and specialty ink sectors.

Application

• Plastics Coloring: Masterbatch and compound production for engineering plastics, polyolefins, and PVC, offering excellent dispersion and heat stability.
• Industrial Coatings: Provides durable, weather-resistant black color in automotive, coil, and heavy-duty protective coatings.
• Ceramic Glazes & Bodies: Used as a colorant in ceramic tiles, sanitaryware, and artistic ceramics, stable at high firing temperatures.
• Specialty Inks: Formulation of high-performance printing inks, including those for plastics and metals.
• Construction Materials: Pigmentation for concrete, roofing granules, and asphalt shingles.
• Artists' Colors: A component in professional-grade artists' paints and pigments due to its color fastness.

Basic Information

Product Name	Pigment Black 34
CAS No.	56780-54-2
Molecular Formula	CuCr2O4 (Copper Chromite)
Molecular Weight	231.54 g/mol
Synonyms	C.I. Pigment Black 34; Copper Chromite Black; Chromium Copper Oxide; Copper Chromium Oxide; C.I. 77438; Black Spinel; Copper Chromite Spinel; CuCr2O4
EINECS	Contact for details

Quality Control

Our Pigment Black 34 is manufactured under a strict quality management system. Each batch is tested to ensure consistent chemical composition, color strength, and physical properties. A comprehensive Certificate of Analysis (COA) detailing purity, heavy metal content, and performance characteristics is provided with every shipment to guarantee it meets your specific application requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong acids and strong oxidizing agents. Minimize dust generation and accumulation.

Specification

Item	Specification
Appearance	Fine Black Powder
Identification (XRD)	Conforms to Copper Chromite structure
Color Strength	≥ 95% (vs. Standard)
Particle Size (D50)	0.5 - 2.0 µm
Oil Absorption	15 - 25 g/100g
Residue on Sieve (325 mesh)	≤ 0.5%
Moisture Content	≤ 1.0%
Heavy Metals (as Pb)	≤ 50 ppm

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