Overview
Vegetable oleic acid is a naturally occurring monounsaturated fatty acid derived from plant oils such as olive, sunflower, and palm. It is a key component in many industrial and consumer products due to its versatility and biodegradability. Unlike animal-derived oleic acid, the vegetable variant is preferred in vegan and sustainable formulations. In B2B markets, it is commonly supplied in bulk quantities for use in cosmetics, pharmaceuticals, and lubricants. Its production involves hydrolysis of triglycerides from vegetable oils, followed by fractional distillation to achieve desired purity levels.
Physical and Chemical Properties
Vegetable oleic acid is characterized by its pale yellow to colorless appearance and oily consistency. It has a faint, fatty odor and is insoluble in water but readily dissolves in organic solvents like ethanol and ether. Its low melting point (13-14°C) makes it suitable for cold-process applications. The acid's molecular structure (C₁₈H₃₄O₂) includes a cis double bond at the 9th carbon, contributing to its stability and resistance to oxidation. This property is critical for applications requiring long shelf life, such as cosmetics and food additives.
Main Applications
In cosmetics, vegetable oleic acid acts as an emollient and thickening agent in creams, lotions, and soaps. Its moisturizing properties make it ideal for skincare formulations. The pharmaceutical industry uses it as an excipient in ointments and drug delivery systems due to its biocompatibility. Industrial applications include lubricants for machinery and metalworking, where its high lubricity reduces friction. It is also a precursor for surfactants and biodegradable detergents. In food processing, it serves as an emulsifier and anti-foaming agent.
Safety and Storage
Vegetable oleic acid is generally non-toxic but may cause mild skin or eye irritation upon prolonged contact. Proper PPE, such as gloves and goggles, is recommended during handling. Storage should be in tightly sealed containers away from heat and oxidizing agents to prevent degradation. For bulk storage, stainless steel or lined drums are preferred to avoid contamination. Shelf life typically exceeds two years when stored under recommended conditions (below 25°C, in a dry environment).
B2B Procurement Guide
When procuring vegetable oleic acid, prioritize suppliers with certifications like ISO 9001 or GMP to ensure quality consistency. Key specifications to verify include purity (≥70% for industrial use), iodine value (80-90 g I₂/100g), and acid value (190-200 mg KOH/g). Packaging options range from 180 kg drums to 1,000 kg IBCs, depending on volume needs. Prices fluctuate with raw material costs (e.g., palm oil market trends). For sustainable sourcing, inquire about RSPO (Roundtable on Sustainable Palm Oil) certification if palm-derived.
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