Antimony trisulfide price manufacturers

When sourcing Antimony Trisulfide (Sb2S3), the price is primarily driven by purity levels (typically 95% to 98%+) and particle size (mesh count). For industrial applications like friction materials (brake pads), a purity of 95-97% is standard, while pyrotechnic or specialized chemical grades require 98% or higher. Ensure the supplier provides a Certificate of Analysis (COA) detailing the exact percentage of Antimony and Sulfur, as well as limits on impurities like Arsenic (As) and Lead (Pb), which can significantly affect the market value.

The application dictates the grade: Friction materials for the automotive industry often use crude or technical grades where consistent particle size distribution is more critical than ultra-high purity. In contrast, pyrotechnics and glass production require high-purity needle-like crystals or fine powders to ensure stable chemical reactions. Higher mesh counts (finer powders) generally command a premium price due to the additional processing and milling costs involved.

Antimony Trisulfide is classified under UN 1549 (Antimony compounds, inorganic, solid, n.o.s.) for international transport. Buyers must ensure the supplier provides a valid Material Safety Data Sheet (MSDS/SDS) compliant with GHS standards. For export to the EU, verify REACH registration; for the US, ensure compliance with TSCA (Toxic Substances Control Act). Failure to meet these regulatory standards can lead to customs seizures and heavy fines.

Antimony is a strategic mineral with prices influenced by global mining outputs and environmental policies in China. To mitigate risk, consider long-term framework agreements with price adjustment formulas based on market indices. Avoid spot-buying during peak volatility and prioritize suppliers on Made-in-China.com who offer transparency in their raw material sourcing.

As a Class 6.1 Toxic Substance, Antimony Trisulfide requires specialized hazardous goods packaging (UN-certified bags or drums). Ensure your freight forwarder is experienced in handling Dangerous Goods (DG). You must confirm the Incoterms clearly; CIF or CIP is often preferred for buyers new to chemical imports, as the seller manages the complex hazardous goods documentation and insurance until the destination port.

Always utilize Trade Assurance or secure payment terms that hold funds until shipping documents are verified. For chemical bulk orders, it is highly recommended to hire a third-party inspection agency (like SGS or Intertek) to perform pre-shipment sampling and testing. This ensures the chemical composition matches the agreed-upon specifications before the balance payment is made, preventing the risk of receiving substandard or adulterated material.