Dibromomethane

Dibromomethane is a halogenated organic compound with the chemical formula CH2Br2 and CAS number 74-95-3. This colorless liquid belongs to the family of dihalomethanes and has a molecular weight of 173.83 g/mol. It is classified as a moderately hazardous substance with acute toxicity category 4 and chronic aquatic toxicity. Dibromomethane is used primarily as a solvent and chemical intermediate in various industrial applications.

Dibromomethane is a colorless, dense liquid with a sweet, chloroform-like odor at room temperature. It has a high density due to the presence of two bromine atoms and is poorly soluble in water but miscible with most organic solvents. The compound is relatively stable under normal conditions but can decompose under extreme heat or light exposure, producing toxic bromine-containing vapors.

Dibromomethane serves primarily as a solvent for various industrial processes and as a chemical intermediate in organic synthesis. It is used in the pharmaceutical industry for drug synthesis, in analytical chemistry as an extraction solvent, and in some specialized cleaning applications. The compound is also employed in laboratory settings for density separation techniques and as a reagent in organic transformations involving carbon-bromine bond formation.

Safe handling of dibromomethane requires appropriate personal protective equipment including chemical-resistant gloves, safety goggles, and protective clothing. Work should be conducted in well-ventilated areas or under fume hoods to prevent vapor inhalation. Avoid direct skin contact and ensure no ignition sources are present nearby. Use only non-sparking tools and equipment, and implement proper grounding procedures to prevent static electricity buildup during transfer operations.

Dibromomethane must be stored in tightly sealed containers in a cool, dry, well-ventilated area away from heat sources and direct sunlight. Keep containers away from incompatible materials such as strong bases, metals, and oxidizing agents. Storage areas should be equipped with appropriate spill containment measures and fire suppression systems. Ensure containers are properly labeled and inventory is regularly inspected for signs of degradation or leakage.

In case of skin contact with dibromomethane, immediately remove contaminated clothing and wash the affected area thoroughly with soap and water for at least 15 minutes. For eye contact, flush immediately with clean water for 15 minutes while holding eyelids open. If inhaled, move the person to fresh air immediately. For ingestion, do not induce vomiting and seek immediate medical attention. Always consult a physician after any significant exposure.

Dibromomethane disposal must comply with local and national hazardous waste regulations as it is classified as toxic waste. The substance should never be poured down drains or disposed of with regular waste. Arrange disposal through licensed hazardous waste contractors who can properly treat or incinerate the material at authorized facilities. Small laboratory quantities may be collected in designated waste containers for professional disposal services.

Dibromomethane is classified under ADR as Class 6.1 (toxic substances), Packing Group III, requiring specific transport documentation and packaging standards. Vehicles must display appropriate hazard placards and carry emergency response information. Transport containers must meet UN specification standards and be properly sealed and labeled. Drivers require ADR training certification, and transport routes should avoid densely populated areas when possible.

Dibromomethane is subject to standard chemical regulations under REACH and CLP in Europe, requiring registration and proper classification labeling. It is not currently listed as a Substance of Very High Concern (SVHC), but users must comply with occupational exposure limits and safety data sheet requirements. Industrial users may need to implement risk management measures and report usage volumes according to REACH obligations.

Dibromomethane is available through OYSI, a specialized European distributor of technical chemicals serving industrial and laboratory customers across the continent. OYSI provides properly documented, high-quality dibromomethane with complete regulatory compliance including safety data sheets and transport documentation. As a professional chemical distributor, OYSI ensures reliable supply chains and technical support for customers requiring this specialized solvent for their applications.