Calcium hydroxide price manufacturers

When comparing prices, you must prioritize purity levels (Ca(OH)2 content), which typically range from 90% to 98%. Higher purity commands a premium but ensures better reactivity. Additionally, check the fineness (mesh size); for industrial water treatment, 200-325 mesh is standard, while specialized chemical applications may require 400-600 mesh. Ensure the Whiteness index is above 90% for paint or coating applications to avoid affecting the final product color.

The price varies significantly based on the grade: Industrial Grade is cost-effective for wastewater treatment and flue gas desulfurization; Food Grade (FCC) requires strict heavy metal limits (Lead < 2mg/kg, Arsenic < 3mg/kg) and is priced higher due to ISO 22000 or HACCP compliance; Medical/Dental Grade is the most expensive due to extreme purity requirements for endodontic use. Always match the grade to your specific Usage Scenario to avoid overpaying for unnecessary purity or risking non-compliance.

For international trade, ensure the supplier provides a Certificate of Analysis (COA) for every batch. If purchasing for the US market, check for ASTM C25 standards; for the EU, ensure REACH registration. For environmental applications, ISO 14001 certification of the manufacturer indicates sustainable production practices, which is increasingly important for ESG-compliant supply chains.

Calcium Hydroxide is available in 25kg bags, 50kg bags, or 1-ton Jumbo bags. While Jumbo bags reduce labor costs for unloading, they require specialized equipment. Furthermore, consider the moisture content (<1%); high moisture not only increases shipping weight (and thus cost) but also leads to caking and reduced shelf life during cross-border transit.

The biggest risk is moisture absorption and carbonation during sea freight. Calcium Hydroxide reacts with CO2 and moisture in the air to form Calcium Carbonate, reducing its effectiveness. Ensure the supplier uses PE-lined moisture-proof bags and request container desiccant for long-haul shipments. Another risk is heavy metal contamination in low-priced batches, which can lead to legal liabilities in regulated markets.

Focus on Annual Volume Commitments rather than one-off spot buys to secure Tiered Pricing. Since Calcium Hydroxide is a commodity, prices fluctuate with raw material (Limestone) and energy costs. Negotiate a price adjustment formula based on market indices. Additionally, request Free Samples (500g-1kg) to be tested by a third-party lab like SGS or Intertek before finalizing the contract.

While Calcium Hydroxide is generally classified as non-hazardous for transport in many jurisdictions, it is an alkaline irritant. Ensure the Material Safety Data Sheet (MSDS) is provided in the language of the destination country. For shipping to regions with high humidity, prioritize FCL (Full Container Load) over LCL to minimize exposure to external air and prevent cross-contamination from other cargo.

Use Trade Assurance services provided by Made-in-China.com to protect your payment until delivery is confirmed. For large orders, mandate a Pre-shipment Inspection (PSI) to verify that the chemical composition matches the agreed-upon COA. Ensure the contract specifies compensation clauses for products that fail to meet the activity/purity threshold upon arrival.