Calcium chloride

Calcium Chloride is typically categorized into Industrial Grade, Food Grade, and Pharma Grade. For industrial use, you must distinguish between Anhydrous (94-97% purity) and Dihydrate (74-77% purity). Anhydrous is more concentrated and generates more heat upon dissolution, making it ideal for oil drilling and moisture absorption, while Dihydrate is commonly used for snow melting and dust control due to its cost-effectiveness.

Buyers should prioritize the purity level (percentage of CaCl2), alkalinity (as Ca(OH)2), and water-insoluble matter content. For liquid applications, density and pH value are vital. Ensure the product meets ASTM D98 or AASHTO M144 standards for road applications, or FCC (Food Chemicals Codex) standards if intended for food processing or brewing.

Flakes are the most common for general industrial use due to their balance of surface area and price. Pellets (Prills) offer better flowability and are preferred for automated spreading or specialized chemical reactions. Powder provides the fastest dissolution rate but is highly hygroscopic, requiring superior moisture-proof packaging to prevent clumping during transit.

As a chemical product, it must be accompanied by a comprehensive Material Safety Data Sheet (MSDS). For international trade, ensure the supplier provides a Certificate of Analysis (COA) for every batch. If shipping to the EU, REACH registration is mandatory. For the US market, compliance with FDA regulations is necessary if the product has indirect contact with food.

Calcium Chloride is extremely hygroscopic (absorbs moisture from the air). For cross-border shipping, use PP/PE bags with an inner liner (25kg or 1000kg jumbo bags). Ensure the container is dry and inspect for leaks. Palletization with shrink-wrap is highly recommended to prevent bag breakage and moisture ingress during humid sea voyages.

Look for 'Audited Suppliers' who have undergone on-site inspections by third-party agencies like SGS or Bureau Veritas. Check their export history and specifically ask for ISO 9001 (Quality Management) and ISO 14001 (Environmental Management) certifications to ensure stable production capacity and regulatory compliance.

Chemical prices are sensitive to raw material costs (limestone and hydrochloric acid) and energy prices. Negotiate based on volume tiers (e.g., 20ft FCL vs. 100 tons). Request a price formula linked to market indices if establishing a long-term contract. Always clarify the Incoterms (FOB vs. CIF), as shipping heavy chemicals significantly impacts the landed cost.

Utilize Secured Trading Services provided by Made-in-China.com to protect your payment until the goods are shipped. For large orders, consider a Letter of Credit (L/C) or a 30% deposit with 70% against the Bill of Lading (B/L). Always hire a third-party inspector (like CCIC) to perform a pre-shipment inspection to verify weight and purity.