Potassium fluoride

Buyers must prioritize Purity Levels, typically ranging from 99% (Industrial Grade) to 99.9% (Analytical/Electronic Grade). For chemical synthesis or glass etching, the Free Acid (HF) content and Chloride (Cl) impurities must be strictly controlled (usually <0.01%). Additionally, specify the physical form required: Anhydrous powder for moisture-sensitive reactions or Dihydrate for specific aqueous applications. Ensure the Heavy Metal content (Pb, As) meets your industry's safety thresholds.

Potassium Fluoride is a Toxic Substance (Class 6.1). Suppliers must provide a valid Material Safety Data Sheet (MSDS/SDS) compliant with GHS standards. For international trade, verify the CAS Number (7789-23-3) and ensure the manufacturer holds ISO 9001:2015 for quality management. If used in specialized industries, check for REACH registration (for EU markets) or TSCA compliance (for US markets).

Due to its hygroscopic nature (absorbs moisture from air) and toxicity, KF must be packed in hermetically sealed containers, typically 25kg plastic-lined woven bags or fiber drums with PE inner liners. For high-purity electronic grades, vacuum-sealed fluorinated bottles are preferred. Ensure the packaging is UN-certified for hazardous goods to prevent leakage during cross-border transit.

KF is widely used in Agrochemicals and Pharmaceuticals as a fluorinating agent (Halex reaction). In the Metallurgical industry, it serves as a flux for soldering and welding. It is also critical in Glass Etching, the manufacture of Optical Glass, and as a preservative in Wood Treatment. Identifying your specific application helps the supplier adjust the particle size (mesh) for optimal solubility.

As a Class 6.1 Hazardous Material, KF requires a Dangerous Goods (DG) Declaration. You must use a freight forwarder experienced in handling toxic chemicals. Ensure the supplier provides a 'Certificate for Safe Transport of Chemical Goods'. Shipping via Sea Freight is standard for bulk, but it must be stored in a cool, ventilated area away from acids and reactive metals.

Utilize Made-in-China.com's 'Audit Reports' to verify the supplier's production capacity and legal status. Always request a Pre-Shipment Inspection (PSI) by a third party like SGS or Intertek to test purity and moisture content before final payment. For new suppliers, use Secured Payment terms to ensure funds are only released upon proof of valid shipping documents.

Avoid focusing solely on the Unit Price. Low-cost KF often contains high moisture or insoluble matter, which can ruin chemical batches. Negotiate based on Total Cost of Ownership (TCO), including hazardous material handling fees and customs duties. Ask for tiered pricing (e.g., 1-5 tons vs. 20ft FCL) and clarify who bears the cost of hazardous packaging certification.

Check for Export Licenses required by the origin country, as some fluorides are monitored under dual-use chemical regulations (precursors). Ensure the HS Code (2826.19) is correctly declared to avoid customs delays or incorrect tariff applications. Be aware of Anti-dumping duties that may apply to chemical imports in specific regions.