Acrylic acid

Buyers must prioritize purity levels, typically requiring ≥99.5% for Glacial Acrylic Acid (GAA). Key chemical markers include moisture content (≤0.1%) and color (≤10 Hazen). It is critical to verify the inhibitor type and concentration (usually MEHQ - Hydroquinone Monomethyl Ether), as this prevents spontaneous polymerization during transport and storage.

As a hazardous chemical, Acrylic Acid must have a valid Material Safety Data Sheet (MSDS/SDS) compliant with GHS (Globally Harmonized System). For the EU market, REACH registration is mandatory. Ensure the supplier provides a Certificate of Analysis (COA) for every batch and complies with ISO 9001 for quality management and ISO 14001 for environmental safety.

Acrylic Acid is a vital feedstock for Superabsorbent Polymers (SAP) used in hygiene products, surface coatings, adhesives, and water treatment chemicals. Functional requirements include high reactivity for polymerization and low dimer content, which ensures the stability and performance of the final polymer chains.

Acrylic Acid has a short shelf life and is sensitive to temperature. Buyers should confirm that suppliers use temperature-controlled storage (ideally between 15°C and 25°C) to prevent freezing or hazardous polymerization. Ask for the production date to ensure the product is fresh, as the effectiveness of inhibitors diminishes over time.

Acrylic Acid is classified as a Class 8 (Corrosive) and Class 3 (Flammable) hazardous material (UN 2218). It must be shipped in ISO tanks or stainless steel/polyethylene-lined drums. Ensure the logistics provider is certified for Dangerous Goods (DG) handling and that the vessel allows for stowage away from heat sources.

Utilize secure payment terms such as Letter of Credit (L/C) or Trade Assurance services provided by reputable platforms like Made-in-China.com. Conduct third-party pre-shipment inspections (e.g., SGS or Intertek) to verify the chemical composition and drum integrity before the balance payment is released.

Prices are heavily influenced by Propylene feedstock costs. Buyers should negotiate based on formula-based pricing linked to market indices or secure long-term contracts to hedge against price spikes. For bulk orders, aim for volume-based discounts of 5-10% compared to spot market prices.

The most common delay is incorrect labeling or documentation. Ensure the HS Code (typically 291611) is accurate and that all packaging carries the correct UN hazard labels. Failure to provide a Declaration of Conformity for hazardous chemicals can lead to port seizures and heavy fines.