Description

Zinc Chloride CAS NO 7646-85-7 is an essential inorganic salt widely recognized for its versatile chemical properties and broad industrial utility. Its primary value lies in its strong Lewis acidity and hygroscopic nature, making it a critical reagent and additive across numerous manufacturing processes. This compound is indispensable for industries including galvanizing and metal surface treatment, chemical synthesis, pharmaceuticals, and wood preservation, where consistent quality and reliable supply are paramount for operational success.

Application

• Galvanizing & Metal Surface Treatment: A key component in fluxes for hot-dip galvanizing to clean steel surfaces and promote zinc adhesion, and in electroplating baths.
• Chemical Synthesis & Catalysis: Acts as a powerful Lewis acid catalyst in organic reactions such as Friedel-Crafts acylation and as a dehydrating agent.
• Pharmaceutical & Nutritional Supplements: Used as a source of zinc in mineral supplements and as an active ingredient in certain antiseptic and astringent formulations.
• Wood Preservation & Textile Processing: Serves as an active ingredient in fire-retardant and preservative treatments for timber and in the mercerization of textiles.
• Oil & Gas Industry: Utilized in well completion and workover fluids as a high-density brine component.
• Battery Manufacturing: Employed in the production of certain types of dry-cell batteries, such as Leclanché cells.
• Adhesives & Cement: A component in dental cements and certain high-strength industrial adhesives.

Basic Information

Product Name	Zinc Chloride
CAS No.	7646-85-7
Molecular Formula	ZnCl₂
Molecular Weight	136.29 g/mol
Synonyms	Zinc(II) chloride; Butter of zinc; Zinc dichloride; Zinc chloride fume; Zinc chloride, anhydrous; Zinc chloride solution; Zinc muriate; Zinc chloride (ZnCl₂)
EINECS	231-592-0

Quality Control

Our Zinc Chloride is manufactured under stringent quality management systems to ensure batch-to-batch consistency and reliability. We offer various grades, including Industrial, Technical, and high-purity Pharmaceutical grades, with specifications tailored to meet specific application requirements. Certificates of Analysis (COA) documenting key parameters such as assay, impurity profiles, and physical properties are provided with every shipment to guarantee compliance with your specifications and industry standards.

Storage

Preserve in a tightly closed container, protected from light. Due to its highly hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed in a cool, dry, and well-ventilated area. Store at room temperature (15-25°C) away from incompatible materials such as strong bases and oxidizing agents. For large quantities, ensure the storage area floor is resistant to corrosion.

Specification

Item	Specification
Appearance	White crystalline powder or granules
Identification (IR)	Conforms
Assay (ZnCl₂)	≥ 97.0% - 99.5%
pH (50 g/L solution)	4.0 - 6.0
Insoluble Matter	≤ 0.01%
Sulfate (SO₄)	≤ 0.01%
Lead (Pb)	≤ 10 ppm
Iron (Fe)	≤ 10 ppm

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