n-Hexane Commercial Grade (Aliphatic Extraction Solvent)

Hexane is a narrow-boiling (65°C to 70°C) aliphatic hydrocarbon solvent composed predominantly of the unbranched straight-chain alkane n-hexane alongside closely related six-carbon isomers (such as 2-methylpentane, 3-methylpentane, and methylcyclopentane).

In commercial industry, pure 100% n-hexane is neither practical nor desirable for large-scale extraction due to cost; commercial extraction hexane is an engineered refinery cut tailored for low non-volatile residue (below 20 ppm), rapid solvent recovery, and high selectivity for non-polar vegetable triglycerides and botanical oils.

KIKI'S Industrial Chemicals supplies commercial n-hexane in sealed steel drums (154 kg from South Africa / 160 kg from China) from our Nairobi warehouse. We work strictly with licensed commercial processing plants, solvent extraction mills, and industrial formulators equipped with certified VOC recovery and explosion-proof containment systems.

Chemical Identity: Pure n-Hexane vs Commercial Hexanes

Procurement teams must recognize that 'n-hexane' and 'mixed hexanes' are distinct commercial materials:

• Pure n-Hexane (>95% purity): Used almost exclusively as a high-purity chemical reagent, analytical standard, or polymerization solvent for stereospecific polyolefins.
• Commercial Extraction Hexane (60% to 85% n-hexane, balance isohexanes): The industry standard for edible oil extraction plants (sunflower, soybean, cotton seed) and rubber adhesives, designed to boil cleanly between 65°C and 70°C for near-total desolventizer recovery.

Occupational Health: Neurotoxicity and 2,5-Hexanedione Hazard

Unlike other aliphatic solvents such as heptane or pentane, the n-hexane molecule undergoes specific cytochrome P450 oxidation in the human body to form the toxic metabolite 2,5-hexanedione (2,5-HD).

2,5-Hexanedione cross-links neurofilaments in peripheral nerve axons, leading to axonal swelling, degeneration, and clinical peripheral neuropathy (exhibited as tingling, numbness, foot drop, and progressive muscular weakness in the limbs). For this reason, occupational exposure must strictly remain below the 50 ppm (176 mg/m³) 8-hour TWA threshold, and hexane must NEVER be used for open-bucket floor cleaning or unventilated manual wiping.