Hexane

Hexane is an aliphatic hydrocarbon with the molecular formula C6H14 and CAS number 110-54-3. This saturated alkane has a molecular weight of 86.18 g/mol and belongs to the family of straight-chain hydrocarbons. Hexane is classified as a highly flammable liquid with significant health hazards including reproductive toxicity and aspiration toxicity. It requires careful handling due to its volatile nature and potential for causing serious health effects upon exposure.

Hexane is a colorless liquid with a characteristic petroleum-like odor at room temperature. This volatile organic compound has a low boiling point and high vapor pressure, making it readily evaporable. Hexane is practically insoluble in water but miscible with most organic solvents including alcohols, ethers, and other hydrocarbons. Its low viscosity and excellent solvency properties for non-polar substances make it particularly useful in extraction and purification processes.

Hexane is primarily used as a solvent in industrial extraction processes, particularly for extracting vegetable oils from seeds and plants. It serves as a cleaning agent for removing grease and oil in manufacturing processes, and as a component in adhesives, rubber cements, and printing inks. Hexane is also utilized in chromatography as a mobile phase solvent and in the production of various chemical intermediates and specialty products in the pharmaceutical and chemical industries.

Hexane requires strict safety measures including wearing chemical-resistant gloves, safety goggles, and protective clothing to prevent skin contact. Work must be conducted in well-ventilated areas or under fume hoods to avoid inhalation of vapors. Eliminate all ignition sources as hexane forms explosive vapor-air mixtures. Use grounded equipment to prevent static electricity buildup, and ensure emergency eyewash stations and safety showers are readily accessible during handling operations.

Hexane must be stored in cool, dry, well-ventilated areas away from heat sources, sparks, and open flames. Use only approved containers and storage cabinets designed for flammable liquids. Keep containers tightly sealed to prevent vapor escape and contamination. Store away from oxidizing agents and incompatible materials. Maintain storage temperatures below 25°C and ensure adequate fire suppression systems are in place. Regular inspection of containers for leaks or damage is essential.

Skin contact with hexane requires immediate removal of contaminated clothing and thorough washing with soap and water for at least 15 minutes. In case of eye contact, flush immediately with clean water for 15-20 minutes and seek medical attention. If inhaled, move the person to fresh air immediately and provide oxygen if breathing is difficult. For ingestion, do not induce vomiting due to aspiration hazard and seek immediate medical attention.

Hexane disposal must comply with local and national hazardous waste regulations as it cannot be disposed of with regular waste. The solvent should be collected in appropriate containers and handed over to licensed waste management companies for treatment or incineration in authorized facilities. Recovery and recycling through distillation is preferred when economically feasible. Never pour hexane down drains, sewers, or onto the ground as it poses environmental contamination risks.

Hexane is classified as ADR Class 3 (flammable liquids), Packing Group II for transportation purposes. It must be transported in UN-approved containers with proper hazard labels and documentation. Vehicles must comply with ADR regulations including appropriate placarding, emergency equipment, and driver certification. Transport should avoid extreme temperatures and ensure proper ventilation. Emergency response information and safety data sheets must accompany shipments during transport.

Hexane is subject to comprehensive regulation under REACH and CLP regulations in Europe, requiring registration and classification as a hazardous substance. It faces restrictions under various occupational health regulations due to its reproductive toxicity and neurotoxic effects. Many countries have established strict occupational exposure limits and require specific safety measures in workplaces. Environmental regulations also apply due to its potential impact on aquatic ecosystems and air quality.

Hexane is available through OYSI, a specialized European distributor of technical chemicals serving industrial customers across Europe. Professional suppliers like OYSI ensure proper packaging, documentation, and regulatory compliance for hexane purchases. When sourcing hexane, verify that suppliers provide appropriate safety data sheets, certificates of analysis, and comply with local regulations. Only purchase from reputable distributors who understand the handling and transportation requirements for this hazardous chemical.