Liquid paraffin oil

Liquid Paraffin is categorized into Pharma/Food Grade (USP/BP/EP), Cosmetic Grade, and Industrial Grade. For B2B buyers, selecting the correct grade is critical: Pharma Grade must meet high purity standards for internal use or medical applications; Cosmetic Grade is optimized for skin compatibility and emollient properties; Industrial Grade is used for lubricants or plasticizers. Always verify the CAS No. 8042-47-5 for high-purity medicinal white oil.

Buyers must evaluate Kinematic Viscosity (typically measured at 40°C), Flash Point (should be >180°C for safety), and Pour Point. For high-end applications, ensure the oil is colorless (Saybolt color +30), odorless, and tasteless. A low Polycyclic Aromatic Hydrocarbons (PAHs) content is mandatory for any application involving human contact to ensure non-toxicity.

Ensure the supplier provides a Certificate of Analysis (COA) for every batch. For the US market, FDA 21 CFR 172.878 (food grade) or 178.3620(a) (white mineral oil) compliance is essential. For the EU, REACH registration is a prerequisite. Additionally, ISO 9001 and GMP (Good Manufacturing Practice) certifications indicate the supplier maintains consistent quality control protocols.

Liquid Paraffin is chemically inert, but its stability depends on storage. Request oxidation stability test results. High-quality oil should have a shelf life of 2–3 years if stored in a cool, dry place away from direct sunlight. Ask suppliers if they add antioxidants (like Vitamin E/Tocopherol) to enhance stability for cosmetic formulations.

The biggest risks are leakage during transit and customs rejection due to mislabeling. Ensure the supplier uses UN-approved packaging (such as HDPE drums, IBC tanks, or Flexitanks). Verify that the MSDS (Material Safety Data Sheet) is updated according to GHS (Globally Harmonized System) standards to prevent delays at customs.

Liquid Paraffin prices are closely tied to crude oil market fluctuations. Negotiate for formula-based pricing if you are a high-volume buyer. For logistics, FOB (Free On Board) is recommended if you have a reliable freight forwarder, but for liquid chemicals, CIF (Cost, Insurance, and Freight) can be safer as the supplier handles the specialized insurance for chemical leakage.

Use secure payment methods and consider Third-Party Inspection (TPI) services like SGS or Intertek to perform a pre-shipment inspection. They will verify the quantity, weight, and purity of the oil before the container is sealed. For sourcing reliable manufacturers, platforms like Made-in-China.com provide verified supplier profiles and trade security tools.

Although Liquid Paraffin is generally classified as non-hazardous for transport, it is still a combustible liquid. Ensure the shipping documents clearly state it is 'Non-DG' (Non-Dangerous Goods) to avoid unnecessary surcharges. If shipping in Flexitanks, confirm the supplier uses high-strength, multi-layer food-grade liners to prevent rupture during sea swells.