Description

Zinc Carbonate Hydroxide is a versatile inorganic compound with the CAS registry number 53572-20-6. It serves as a crucial precursor and functional additive in numerous industrial processes, valued for its ability to provide a controlled source of zinc oxide. This product is essential for manufacturers in the rubber, ceramics, personal care, and agricultural sectors seeking a reliable and consistent raw material.

Application

• Rubber Industry: Acts as an activator in the vulcanization process, improving the physical properties and durability of rubber products.
• Ceramics & Glazes: Used as a flux and opacifier to lower melting temperatures and enhance the whiteness and finish of ceramic glazes and frits.
• Personal Care: Employed as a UV filter and skin protectant in sunscreens and cosmetic formulations.
• Agriculture: Functions as a micronutrient source in fertilizers and animal feed supplements to correct zinc deficiencies.
• Pigments & Coatings: Serves as a corrosion-inhibiting pigment in primers and paints, and as a base for manufacturing zinc white pigments.
• Pharmaceuticals: Utilized as a mild astringent and topical protectant in various dermatological preparations and ointments.
• Catalyst Production: Acts as a precursor in the synthesis of catalysts for chemical manufacturing processes.
• Flame Retardants: Incorporated into polymers and textiles as a smoke suppressant and flame-retardant additive.

Basic Information

Product Name	Zinc Carbonate Hydroxide
CAS No.	53572-20-6
Molecular Formula	ZnCO₃·2Zn(OH)₂·H₂O (Common Basic Form)
Molecular Weight	342.19 g/mol (for ZnCO₃·2Zn(OH)₂·H₂O)
Synonyms	Basic Zinc Carbonate; Zinc Hydroxide Carbonate; Zinc Subcarbonate; Zinc Carbonate Basic; C.I. 77950; Zinc Carbonate Hydroxide Hydrate; ZCA; 2Zn(OH)₂·ZnCO₃
EINECS	Contact for details

Quality Control

Our Zinc Carbonate Hydroxide is produced under a stringent quality management system to ensure batch-to-batch consistency and reliability. The product undergoes comprehensive analytical testing, including assay, impurity profiling, and physical characterization, to meet exacting industry standards. A Certificate of Analysis (COA) detailing purity, heavy metal content, and other critical parameters is provided with every 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 material is hygroscopic (moisture-sensitive); the container must be kept tightly sealed after each use to prevent absorption of atmospheric moisture and carbon dioxide, which can affect product quality.

Specification

Item	Specification
Appearance	White, fine powder
Identification (IR)	Conforms
Assay (as Zn)	55.0 - 60.0 %
Loss on Drying	≤ 2.0 %
Chloride (Cl)	≤ 0.05 %
Sulfate (SO₄)	≤ 0.05 %
Lead (Pb)	≤ 20 ppm
Cadmium (Cd)	≤ 5 ppm
Particle Size (D50)	1 - 5 µm

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