When sourcing chemicals for industrial processes, understanding the precise specifications of each product is paramount. Zinc Chloride (ZnCl2), a cornerstone inorganic compound, is no exception. Available in various purity grades, selecting the correct grade is crucial for optimizing performance, cost-effectiveness, and end-product quality. As a prominent manufacturer and supplier of Zinc Chloride in China, we aim to demystify these choices for procurement managers and R&D scientists.

Understanding Zinc Chloride Purity Grades

Zinc Chloride (CAS 7646-85-7) is typically offered in several purity levels, each suited for distinct applications. The most common grades include 98%, 96%, 95%, 93%, and lower concentrations like 40%. The key difference lies in the concentration of ZnCl2 and the levels of impurities such as iron, heavy metals, and sulfates. For a buyer looking to purchase Zinc Chloride, knowing the impact of these variations is key.

High Purity Grades (98% and above)

Grades of 98% purity and higher are generally preferred for applications where even trace impurities can affect the final product or process. These include:

  • Battery Electrolytes: In the manufacturing of batteries, particularly dry cells and zinc-air batteries, high purity Zinc Chloride is essential to ensure consistent electrical conductivity and prevent unwanted side reactions that can degrade battery performance. A reliable supplier is vital for this sensitive application.
  • Pharmaceutical Intermediates: In the synthesis of certain pharmaceuticals, the purity of raw materials directly impacts the efficacy and safety of the final drug. High-purity Zinc Chloride acts as a catalyst or reagent in these processes.
  • Specialty Organic Synthesis: For advanced organic reactions requiring precise control and minimal by-products, higher purity grades of Zinc Chloride are indispensable.

Industrial Grades (96%, 95%, 93%)

These grades offer a balance between performance and cost, making them suitable for a broader range of industrial uses. They are excellent choices when the utmost purity is not a critical factor, but reliable performance is still required:

  • Metal Galvanizing: For protecting steel and iron from corrosion through galvanization, Zinc Chloride acts as a flux. While purity is important, slight variations are often tolerated, making these grades a cost-effective solution. Buyers looking for zinc chloride for galvanizing often find these grades meet their needs.
  • Textile Industry: Used as a dyeing and silk luster agent, the purity requirements here can vary, making 95% or 96% grades a practical choice.
  • Wood Preservation: As a component in wood preservatives, its fungicidal properties are leveraged, and these industrial grades are effective.
  • General Chemical Synthesis: For many common dehydration and condensation reactions, these grades provide the necessary catalytic activity without the premium cost of ultra-pure materials.

Lower Concentrations (e.g., 40%)

These are typically solutions or mixtures where Zinc Chloride is a significant component but not the sole active ingredient, often used in specific formulations or dilution processes.

Choosing Your Supplier

When it comes to sourcing Zinc Chloride, partnering with a reputable manufacturer in China like us ensures you receive consistent quality, competitive prices, and reliable delivery. We encourage prospective buyers to consult our technical specifications and discuss their specific application needs with our sales team to determine the most suitable grade. To inquire about purchasing Zinc Chloride or to obtain a quote, please reach out to us directly.