Hexane

When purchasing Hexane, the most critical factor is the purity level, typically ranging from n-Hexane 60% to 99%. For laboratory or pharmaceutical applications, ACS Reagent Grade or HPLC Grade is required, while Commercial/Technical Grade suffices for oil extraction. You must verify the moisture content (typically <0.01%), non-volatile residue, and sulfur content to ensure it meets your specific process requirements.

As a hazardous chemical, Hexane must be accompanied by a comprehensive Material Safety Data Sheet (MSDS/SDS) compliant with GHS standards. Ensure the supplier provides a Certificate of Analysis (COA) for every batch. For international trade, the product must adhere to UN1208 classification (Class 3 Flammable Liquid) and meet regional registrations such as REACH (EU) or TSCA (USA).

The choice depends heavily on the application: Food Grade Hexane is essential for vegetable oil extraction (like soybean or rapeseed oil) and must be free from toxic impurities. Industrial Grade is widely used as a solvent for glues, paints, and leather finishes. For polymerization processes (e.g., synthetic rubber), a high-purity n-Hexane (>95%) is often required to prevent catalyst poisoning.

Hexane is highly volatile and flammable. Suppliers must use ISO Tanks or UN-approved steel drums (typically 130kg-150kg). Storage facilities must be cool, well-ventilated, and equipped with explosion-proof lighting and grounding systems to prevent static discharge. Buyers should confirm the supplier's packaging integrity to prevent leakage during long-haul cross-border transit.

The primary risks include quality inconsistency and regulatory seizure. To mitigate these, use third-party inspection services (like SGS or Intertek) to verify the chemical composition before loading. Ensure all Dangerous Goods (DG) declarations are accurate to avoid heavy fines or port delays. For secure transactions, utilize Trade Assurance or Letters of Credit (L/C) on reputable platforms like Made-in-China.com.

Hexane must be shipped via specialized DG (Dangerous Goods) carriers. It is classified under UN 1208, Packing Group II. Buyers should negotiate Incoterms like CIF or CFR where the supplier handles the complex export documentation and hazardous goods labeling. Always confirm the vessel's capability to handle Class 3 liquids and ensure the IMDG (International Maritime Dangerous Goods) Code is strictly followed.

Focus on volume-based pricing; Hexane prices are closely tied to crude oil market fluctuations. Requesting a formula-based pricing model can provide stability. Additionally, verify if the supplier has stable upstream raw material access to ensure supply continuity. On Made-in-China.com, you can compare multiple audited suppliers to leverage competitive bidding for better payment terms (e.g., 30% deposit, 70% against B/L).