Chloroethane

Chloroethane is an organochlorine compound with the chemical formula C2H5Cl and CAS number 75-00-3. This colorless gas has a molecular weight of 64.51 g/mol and belongs to the alkyl halide family. It is classified as a flammable gas under pressure with potential carcinogenic properties (Category 2). Chloroethane is widely used in industrial applications as a chemical intermediate and refrigerant, requiring careful handling due to its hazardous nature.

Chloroethane is a colorless gas at room temperature with a characteristic sweet, ether-like odor. It has a boiling point of 12.3°C and is moderately soluble in water but highly soluble in organic solvents like ethanol and ether. The compound exists as a pressurized gas in containers and can easily liquefy under pressure. Its density is approximately 2.22 kg/m³ as a gas and 0.92 g/cm³ as a liquid at its boiling point.

Chloroethane is primarily used as a chemical intermediate in the production of tetraethyl lead, ethyl cellulose, and various pharmaceuticals. It serves as a refrigerant in industrial cooling systems and as a blowing agent for foam production. The compound is also utilized in organic synthesis reactions and as a solvent in specialized applications. Additionally, it has historical use as a local anesthetic, though this application has largely been superseded by safer alternatives in medical practice.

Chloroethane requires strict safety protocols including use of appropriate respiratory protection, safety glasses, and protective clothing when handling. Work must be conducted in well-ventilated areas or under fume extraction systems to prevent gas accumulation. Eliminate all ignition sources as the compound is highly flammable. Use gas-tight equipment and ensure proper grounding to prevent static electricity buildup. Personnel should be trained in emergency procedures and have access to emergency shower and eyewash stations.

Chloroethane must be stored in pressurized gas cylinders or appropriate pressure vessels in cool, well-ventilated areas away from heat sources and ignition points. Storage areas should be separated from incompatible materials such as strong oxidizing agents and alkali metals. Cylinders must be secured upright and protected from physical damage. Temperature should be maintained below 25°C, and storage areas must have appropriate gas detection systems and emergency ventilation. Regular inspection of containers for leaks is essential.

Chloroethane exposure requires immediate action depending on the route of contact. For inhalation, move the person to fresh air immediately and provide oxygen if breathing is difficult. In case of skin contact, remove contaminated clothing and flush the affected area with water. For eye contact, rinse thoroughly with water for at least 15 minutes. Seek immediate medical attention in all cases of exposure, especially due to its potential carcinogenic properties. Never induce vomiting if ingested.

Chloroethane disposal must comply with local and European waste regulations as it is classified as hazardous waste. The compound should never be released to the atmosphere due to environmental concerns and its classification as Aquatic Chronic 3. Disposal must be performed by licensed waste management companies capable of handling flammable gases and potential carcinogens. Empty containers should be properly decontaminated and recycled through appropriate channels. Incineration at high temperatures in specialized facilities is typically required for complete destruction.

Chloroethane is classified under ADR Class 2 (gases) for transportation purposes, requiring compliance with specific packaging, labeling, and documentation requirements. Transport must use UN-approved pressure vessels with appropriate hazard labels including flammable gas and health hazard pictogrammes. Vehicles must be equipped with proper ventilation and emergency equipment. Drivers require ADR certification for dangerous goods transport. Temperature control during transport is crucial to prevent excessive pressure buildup in containers.

Chloroethane is subject to comprehensive European regulations including REACH registration requirements and CLP classification as a Category 2 carcinogen. It requires specific risk management measures due to its classification under GHS pictogrammes GHS02, GHS04, and GHS08. The substance is not currently listed as a SVHC (Substance of Very High Concern) but may face restrictions under various national regulations. Occupational exposure limits apply in workplace environments, and environmental discharge permits may be required for industrial use.

Chloroethane is available through OYSI, a specialized European distributor of technical chemicals with expertise in handling hazardous substances. OYSI provides proper documentation, safety data sheets, and regulatory compliance support for chloroethane procurement. As a controlled substance requiring specialized handling and transportation, purchase is typically limited to qualified industrial users with appropriate facilities and permits. Contact OYSI directly for availability, technical specifications, and regulatory requirements specific to your application and location within Europe.