Description

C. I. Pigment White 16 (77625) is a high-performance, inorganic white pigment primarily composed of zinc oxide. This compound is valued for its excellent opacity, whiteness, and UV-blocking properties, making it a critical functional additive in numerous industrial formulations. It is essential for manufacturers in the coatings, plastics, and specialty chemical industries seeking durable, bright, and protective white coloration.

Application

The versatile properties of C. I. Pigment White 16 make it suitable for a wide range of industrial applications:

• Protective Coatings & Paints: Used in architectural, industrial, and marine paints for its excellent hiding power, whiteness, and corrosion-inhibiting properties.
• Plastics & Polymers: Imparts bright white color and UV stability to PVC, polyolefins, and engineering plastics.
• Rubber Compounding: Acts as a reinforcing filler and whitening agent in various rubber products, including footwear and technical rubber goods.
• Ceramics & Glass: Employed in glazes, frits, and specialty glass formulations to achieve opacity and specific optical characteristics.
• Paper & Specialty Inks: Provides high brightness and opacity in high-quality paper coatings and certain ink systems.
• Cosmetics & Personal Care: Used as a colorant and opacifier in specific cosmetic formulations where its inorganic nature is advantageous.

Basic Information

Product Name	C. I. Pigment White 16 (77625)
CAS No.	124826-86-4
Molecular Formula	ZnO (Primary component)
Molecular Weight	81.38 g/mol (for ZnO)
Synonyms	Zinc White; Pigment White 16; CI 77625; Zinc Oxide (Pigment Grade); Chinese White; Philosopher's Wool; Zincite (synthetic); Flowers of Zinc
EINECS	Contact for details

Quality Control

Our C. I. Pigment White 16 is produced under a stringent quality management system. Each batch is tested against rigorous specifications for chemical purity, physical properties like particle size distribution, and performance characteristics such as tinting strength and brightness. Certificates of Analysis (COA) documenting these parameters are available upon request to ensure compliance with 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 the container tightly sealed to minimize exposure to atmospheric carbon dioxide and moisture. Separate from strong acids.

Specification

Item	Specification
Appearance	Fine white powder
Identification (XRD)	Conforms to Zinc Oxide structure
Assay (as ZnO)	≥ 95.0 %
Lead (Pb)	≤ 20 ppm
Cadmium (Cd)	≤ 15 ppm
Loss on Ignition	≤ 2.0 %
Water Soluble Matter	≤ 0.5 %
Particle Size (D50)	0.2 - 0.5 µm
Oil Absorption	15 - 25 g/100g
Brightness (ISO)	≥ 92 %

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