Sodium selenite

Sodium Selenite (Na2SeO3) is primarily traded in two forms: anhydrous and pentahydrate. For industrial and agricultural use, a purity level of ≥98% or ≥99% is standard. In the feed industry, it is often sold as a 1% Selenium premix to ensure safe dosage. Buyers must verify the Selenium (Se) content, which should be approximately 45.6% for pure anhydrous grade. Ensure the product has a consistent particle size (mesh) to prevent segregation when blending with other minerals.

As a hazardous chemical and a trace element, compliance is critical. Suppliers must provide a Material Safety Data Sheet (MSDS) and a Certificate of Analysis (COA) for every batch. For animal feed applications, look for FAMI-QS or GMP+ certifications. If importing for food or pharma, ISO 22000 or USP/EP grade compliance is mandatory. Ensure the supplier is registered under REACH if you are importing into the European Union.

Sodium Selenite is widely used as a nutritional supplement in animal feed to prevent selenium deficiency and enhance immunity. In the glass industry, it acts as a decolorizer to neutralize the green tint caused by iron impurities or to produce pink/red colored glass. It is also utilized in electroplating and as a chemical reagent in laboratories. Buyers must specify the application to ensure the supplier provides the correct physical form (powder vs. granular).

Due to its high toxicity (Class 6.1 Toxic Substance), Sodium Selenite must be packed in UN-approved packaging, typically 25kg fiber drums with double PE inner bags. The packaging must be hermetically sealed to prevent moisture absorption (hygroscopy). Storage facilities must be cool, dry, and well-ventilated, strictly separated from acids and food products to avoid cross-contamination or dangerous chemical reactions.

Sodium Selenite is classified under UN 2630 (Hazard Class 6.1). You must use a freight forwarder experienced in Dangerous Goods (DG). Shipping requires a Dangerous Goods Declaration and specific labeling. Ensure the supplier provides a 'Certificate for Safe Transport of Chemical Goods' to avoid customs delays or vessel rejection. LCL (Less than Container Load) shipping is often restricted for toxic substances, so FCL or specialized DG consolidation is recommended.

Always verify the supplier's Production License for Hazardous Chemicals. For secure transactions, use the Secured Trading services on Made-in-China.com to protect your payment until the goods pass inspection. It is highly recommended to hire a third-party inspector (like SGS or Intertek) to perform a pre-shipment inspection (PSI) to verify the purity and packaging integrity before the balance payment is made.

Prices for Sodium Selenite are heavily influenced by the raw Selenium market price. To get the best deal, monitor global Selenium trends and consider long-term supply contracts to hedge against price volatility. Ask for tiered pricing based on volume; typically, orders exceeding 500kg to 1 ton command significant discounts. Always clarify if the quoted price includes specialized DG packaging and export documentation fees.

Check the Import Duty and VAT rates for Sodium Selenite in your specific country, as some regions impose high tariffs on inorganic salts. Be aware of Anti-dumping duties that may apply to chemical products from certain origins. Ensure all customs HS Codes (typically 2842.90) are correctly declared on the Commercial Invoice and Packing List to prevent legal complications or fines during clearance.