sodium carbonate price

The primary difference lies in bulk density and particle size. Light Soda Ash has a density of approximately 0.5-0.6 g/cm³ and is typically used in the detergent, textile, and chemical synthesis industries. Dense Soda Ash has a density of 1.0-1.2 g/cm³ and is preferred for glass manufacturing because its heavier particles prevent dust loss in high-temperature furnaces and ensure a more uniform melt.

Buyers should prioritize the Total Alkali Content (Na2CO3), which should be ≥99.2% for industrial grade. Additionally, monitor the Chloride (NaCl) content (ideally <0.7%) and Iron (Fe) content (ideally <0.003%), as high impurities can cause discoloration in glass production or affect the stability of chemical reactions.

For industrial use, ensure the product meets GB/T 210-2011 (Chinese National Standard) or equivalent international standards like ASTM. If the product is intended for the food industry, it must strictly adhere to Food Grade (FCC) standards and possess HACCP or ISO 22000 certifications. For European markets, REACH registration is mandatory to ensure chemical safety compliance.

The Solvay process typically produces higher purity but may have higher energy costs. The Hou's process (Combined process) is common in China and integrates ammonium chloride production, often resulting in more competitive pricing. Buyers should evaluate the cost-to-purity ratio based on their specific application needs.

Sodium Carbonate prices are highly sensitive to raw material costs (salt and limestone) and energy prices. It is recommended to sign long-term framework agreements with suppliers on Made-in-China.com to lock in prices or use formula-based pricing that adjusts according to market indices to avoid sudden spikes.

Sodium Carbonate is hygroscopic (absorbs moisture). Ensure the supplier uses PP/PE moisture-proof bags (typically 25kg, 50kg, or 1000kg jumbo bags). For sea freight, request container liners and ensure the cargo is stored in a cool, dry, and well-ventilated area to prevent caking during long-transit periods.

Always utilize Trade Assurance services or Escrow payments to ensure funds are only released upon proof of shipment. Conduct third-party inspections (such as SGS or BV) before loading to verify the purity and weight of the chemical, as quantity discrepancies are a common risk in bulk commodity trading.

Sodium Carbonate is generally classified as non-hazardous for transport, but you must provide a Material Safety Data Sheet (MSDS) and a Non-Hazardous Chemical Certificate for customs clearance. When shipping to regions with high humidity, prioritize FCL (Full Container Load) over LCL to minimize exposure to external air and moisture.