High-Quality Zinc Chloride (CAS 7646-85-7) – Applications, Properties, and Global Supply
Introduction to Zinc Chloride (CAS 7646-85-7)
Zinc Chloride (ZnCl₂) is an essential inorganic compound that serves a wide range of industrial applications due to its versatile chemical properties. With the chemical formula ZnCl₂, also known as the zinc chloride formula, and CAS number 7646-85-7, this compound appears as a white crystalline solid. It dissolves easily in water, ethanol, and glycerol, and its strong hygroscopic nature makes it an effective dehydrating agent. Because of these characteristics, it plays a vital role as a raw material in numerous manufacturing processes.
At Hainan Sincere Industries Co., Ltd., we supply high-purity zinc chloride in multiple grades to serve industries around the globe. We ensure every shipment meets strict quality standards and arrives on time with dependable logistics support.
Key Properties
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CAS Number: 7646-85-7
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Appearance: White powder
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Solubility: Highly soluble in water, alcohol, and glycerol
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Hygroscopicity: Strong moisture absorption capacity
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Reactivity: Functions as a Lewis acid, catalyzing a variety of organic and inorganic reactions
Major Industrial Applications
1. Galvanizing and Metal Treatment
Zinc chloride plays a key role as a fluxing agent in hot-dip galvanizing. It removes oxides from metal surfaces, which allows zinc coatings to adhere more effectively. As a result, steel and iron products gain superior corrosion resistance and longer service life.
2. Battery Manufacturing
Manufacturers use battery-grade zinc chloride as an electrolyte in dry cell batteries. Because it conducts electricity efficiently, it significantly improves battery performance.
3. Textile and Fabric Industry
In textiles, zinc chloride supports fabric mercerization and acts as a fireproofing agent. It strengthens cotton fabrics, enhances their luster, and increases flame resistance.
4. Chemical Synthesis and Catalysis
This compound functions as a Lewis acid catalyst in many organic synthesis reactions. Industries also use it to produce dyes, pharmaceuticals, and refined petroleum products.
5. Water Treatment
Thanks to its antibacterial and coagulating properties, zinc chloride contributes to specific water purification processes, improving water safety.
6. Wood Preservation
Wood treatment facilities apply zinc chloride as a preservative to protect timber from fungal and insect damage, thus extending its usable lifespan.
Why Choose Hainan Sincere Industries for Zinc Chloride Supply?
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Reliable Quality: We manufacture zinc chloride to meet international standards, ensuring consistent and dependable performance.
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Flexible Packaging: Choose from bags, drums, or customized bulk packaging to match your operational needs.
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Competitive Pricing: Our direct manufacturer supply model keeps costs low without compromising quality.
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Global Shipping: We deliver to major ports worldwide under CIF or FOB terms for maximum flexibility.
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Technical Support: Our expert team offers guidance on safe handling, usage, and storage to optimize your operations.
With high-quality zinc chloride, dependable delivery, and professional service, Hainan Sincere Industries Co., Ltd. stands as your trusted partner in the global chemical market. Contact us today to discuss your zinc chloride requirements and discover how we can support your business.

