Description

Zinc Silicate CAS NO 68611-47-2 is an inorganic compound widely utilized as a high-performance corrosion-inhibiting pigment. Its primary value lies in its ability to provide long-term, non-toxic protection for metal substrates, particularly steel, by forming a stable, passive layer. This makes it a critical raw material for formulators in the protective coatings, marine paints, and industrial maintenance sectors seeking effective, environmentally compliant alternatives to traditional chromate-based inhibitors.

Application

• Corrosion Inhibiting Primers: A key active pigment in zinc-rich and epoxy primers for steel structures, bridges, ship hulls, and offshore platforms.
• Heavy-Duty Industrial Coatings: Used in coatings for chemical plants, power generation facilities, and pipelines where durable corrosion resistance is paramount.
• Marine and Antifouling Paints: Contributes to the protective base layer in coating systems for vessels and maritime infrastructure.
• Automotive and Transportation: Incorporated in underbody coatings and primers for automotive, rail, and aerospace components.
• High-Temperature Resistant Coatings: Suitable for coatings that must withstand elevated temperatures while maintaining protective properties.
• Welding and Metalworking: Can be used in weld-through primers and temporary protective coatings.

Basic Information

Item	Detail
Product Name	Zinc Silicate
CAS No.	68611-47-2
Molecular Formula	Typically Zn2SiO4 or related non-stoichiometric forms
Molecular Weight	Contact for details
Synonyms	Zinc Orthosilicate; Zinc Silicon Oxide; Silicic Acid, Zinc Salt; Zinosil; Corrosion Inhibitor ZS; Anticorrosive Pigment ZS; Zinc Silicate Pigment
EINECS	Contact for details

Quality Control

Our Zinc Silicate is manufactured under a strict quality management system. Every batch undergoes rigorous testing for critical parameters including chemical composition, particle size distribution, and performance in standard corrosion tests. Certificates of Analysis (COA) documenting compliance with agreed specifications are available upon request, ensuring traceability and consistency for your formulation needs.

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); containers must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect performance.

Specification

Item	Specification
Appearance	Fine white to off-white powder
Identification (IR / XRD)	Conforms to standard
Zinc Content (as ZnO)	Contact for details
Silica Content (as SiO2)	Contact for details
Lead (Pb)	< 20 ppm
Cadmium (Cd)	< 5 ppm
Particle Size (D50)	Contact for details
Oil Absorption	Contact for details
Moisture Content	< 1.0 %

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