Overview
Hexadecyl borate is an organoboron compound formed by the esterification of boric acid with hexadecanol. It belongs to a class of specialty chemicals valued for their dual functionality as both lubricity enhancers and flame retardants. In industrial contexts, it is often blended into formulations where thermal stability and water resistance are critical. The compound's long alkyl chain contributes to its compatibility with non-polar matrices like oils and polymers.
Physical and Chemical Properties
As a waxy solid at room temperature, hexadecyl borate exhibits low volatility and moderate thermal stability, decomposing at temperatures above 200°C. Its boron-oxygen bonds provide unique reactivity for crosslinking applications. The compound's hydrophobicity makes it particularly effective in systems requiring moisture resistance. Analytical characterization typically includes FTIR (for B-O bond verification) and DSC (to assess melting behavior).
Main Applications
Primary industrial uses include: 1) Additive in high-temperature greases, where it reduces friction and wear; 2) Corrosion inhibitor for metal surfaces in humid environments; 3) Synergistic flame retardant in PVC and polyolefins. Emerging applications include use in lithium battery electrolytes as a stabilizing agent. In textile treatments, it provides both water repellency and fire resistance when combined with other compounds.
Safety and Storage
While classified as low-toxicity, hexadecyl borate requires standard organic chemical handling precautions. NFPA ratings typically show Health 1, Flammability 1, Reactivity 0. Spills should be contained with inert absorbents. For long-term storage, nitrogen blanketting is recommended to prevent oxidative degradation. Bulk storage tanks should be constructed of stainless steel or HDPE to avoid contamination.
B2B Procurement Guide
Industrial buyers should prioritize suppliers who provide: 1) Batch-specific certificates of analysis; 2) Customizable particle size (powder vs. flakes); 3) Regulatory documentation for target markets (REACH, TSCA compliant). Sample evaluation should assess performance in the intended formulation. Minimum order quantities (MOQs) typically start at 100kg, with lead times of 2-4 weeks for custom specifications.
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