Paraquat dichloride manufacturers

When sourcing Paraquat Dichloride, the active ingredient (AI) concentration is the most critical factor, typically available as a 42% technical concentrate (TK) or 20% SL (Soluble Liquid). Buyers must ensure the product contains essential safety additives: a blue/green warning dye, a strong odorant (stenching agent), and an emetic (vomit-inducing agent) to prevent accidental ingestion. Quality should be verified against FAO (Food and Agriculture Organization) specifications, focusing on pH stability, cold storage stability, and acidity levels to ensure the herbicide remains effective and safe during its shelf life.

Paraquat is a highly restricted pesticide globally. It is mandatory to verify that the supplier possesses a valid Pesticide Export License and a Production License from their local agricultural department. Buyers must check their own country's import permit requirements, as many regions (such as the EU, Brazil, and China for domestic use) have banned or strictly limited its application. Ensure the product is accompanied by a comprehensive Material Safety Data Sheet (MSDS) and that the labeling complies with the Globally Harmonized System (GHS), including clear hazard pictograms and toxicological data.

Paraquat is a non-selective, fast-acting contact herbicide used for the broad-spectrum control of annual grasses and broadleaf weeds. Its primary advantage is that it becomes inactivated upon contact with soil, meaning it leaves no biologically active residues that could harm subsequent crops. It is ideal for no-till farming, orchard weed management, and pre-harvest desiccation (drying out crops like cotton or sunflowers to facilitate mechanical harvesting). Because it is rain-fast within 30 minutes, it is highly effective in tropical or high-rainfall regions.

Due to its high toxicity, Paraquat must be housed in UN-approved high-density polyethylene (HDPE) containers or COEX bottles with tamper-evident, child-resistant caps. Bulk shipments often utilize 200L drums or 1000L IBC tanks. Storage facilities must be cool, dry, well-ventilated, and strictly locked to prevent unauthorized access. Suppliers should provide reinforced palletization and shrink-wrapping to prevent leakage during cross-border transit, as any spill constitutes a major hazardous material incident.

Paraquat Dichloride is classified as a Class 6.1 Toxic Substance under the IMDG Code. This means it requires specialized hazardous goods (DG) shipping containers and cannot be transported alongside food, feed, or consumer perishables. Buyers should work with freight forwarders experienced in DG cargo to manage the Dangerous Goods Declaration and ensure the vessel accepts toxic chemicals. Failure to declare correctly can lead to heavy fines, cargo seizure, or port rejection.

To mitigate risk, use Made-in-China.com's secured payment services or Letters of Credit (L/C) that release funds only upon the presentation of a third-party inspection report (e.g., SGS or BV). This inspection should verify the AI content and the presence of the emetic agent before the cargo leaves the factory. Avoid suppliers who cannot provide a Certificate of Analysis (COA) for every specific batch produced.

The price of Paraquat is heavily influenced by the cost of raw materials like pyridine. Buyers can achieve 10-15% cost savings by scheduling orders during the 'off-season' for agriculture. Negotiate based on Total Landed Cost, and consider that while bulk 200L drums offer the lowest unit price, 1L or 5L retail-ready packaging may save on local repacking costs and regulatory hurdles in the destination country.

Buyers must stay informed about the Rotterdam Convention, which governs the trade of certain hazardous chemicals. If Paraquat is listed under the Prior Informed Consent (PIC) procedure for your country, you must provide formal notification to the exporting country's authorities. Always consult with a customs broker specializing in agrochemicals to ensure all 'Notice of Arrival' and 'Environmental Protection' filings are completed to avoid legal prosecution or mandatory re-export.