Zinc chloride

When purchasing Zinc Chloride (ZnCl2), the most critical factor is the purity level, typically ranging from 98% (Technical Grade) to 99.9% (Battery or Pharmaceutical Grade). Buyers must verify the content of heavy metals (such as Lead, Iron, and Arsenic), as high impurity levels can compromise chemical reactions or product safety. Additionally, specify the physical form required—anhydrous powder, granular, or aqueous solution—as this affects solubility and handling.

Zinc Chloride is a versatile chemical used across various sectors. In battery manufacturing, it serves as an electrolyte for dry cell batteries. In metal processing, it is a vital flux for soldering and galvanizing to remove oxides. It is also widely used in water treatment as a corrosion inhibitor, in textile processing for mordanting, and in the wood preservation industry to prevent rot and insect damage.

As a hazardous chemical, Zinc Chloride must comply with the Globally Harmonized System (GHS) for classification and labeling. Ensure the supplier provides a valid Material Safety Data Sheet (MSDS/SDS). For specific markets, look for REACH registration (EU) or TSCA compliance (USA). If used in food or pharma-related processes, ISO 9001 and GMP certifications are essential to ensure consistent quality and traceability.

Zinc Chloride is highly deliquescent (absorbs moisture from the air) and corrosive. It must be packed in airtight, moisture-proof containers, typically 25kg woven bags with double PE liners or galvanized iron drums. For liquid forms, IBC tanks or acid-resistant plastic drums are required. Ensure the supplier uses UV-resistant packaging if the product will be stored in outdoor transit areas.

Zinc Chloride is classified under UN Number 2331 (Solid) or 1840 (Solution), belonging to Class 8 Corrosive Substances. The main risk is leakage leading to container corrosion or environmental contamination. You must ensure the supplier is licensed to export Dangerous Goods (DG) and provides a Dangerous Goods Certificate. Always verify that the shipping line accepts Class 8 chemicals before booking space.

To mitigate fraud, use secure payment methods like Letters of Credit (L/C) or trade assurance services provided by reputable platforms like Made-in-China.com. Conduct a factory audit or hire a third-party inspector (like SGS or Intertek) to perform a Pre-Shipment Inspection (PSI) to verify the chemical composition and packaging integrity before the final payment is released.

Prices for Zinc Chloride are heavily influenced by the global market price of Zinc ingot. Monitor raw material trends to time your purchase. Negotiate based on volume tiers; ordering in full container loads (FCL) significantly reduces the per-unit freight cost and allows for bulk discounts of 5-10%. Requesting a fixed-price contract for long-term supply can also protect you from market volatility.

Ensure all documentation—including the Commercial Invoice, Packing List, Bill of Lading, and Certificate of Analysis (COA)—clearly states the chemical name and UN number. Check for anti-dumping duties that may apply to chemical imports from specific regions. It is highly recommended to work with a customs broker experienced in handling hazardous materials to avoid costly delays or fines at the port.