Dichlorodifluoromethane

Dichlorodifluoromethane (CAS 75-71-8), commercially known as R-12 or Refrigerant 12, is a chlorofluorocarbon compound used historically as a refrigerant, aerosol propellant, and solvent carrier across industrial and specialty applications.

Regulatory restrictions under the Montreal Protocol have significantly shaped its current supply landscape, making sourcing and compliance verification critical considerations for buyers in the global chemical market.

In aerospace and defense, R-12 has been used as a solvent carrier in specialized cleaning and surface preparation processes where legacy equipment specifications require CFC-based formulations for operational integrity.

Automotive applications center on legacy vehicle air conditioning systems, where R-12 remains the original-spec refrigerant for pre-1994 vehicles that have not been retrofitted to alternative refrigerants or modern cooling systems.

Controlled quantities are also sourced for calibration equipment, reference standards, and maintenance of older refrigeration systems still operating under original design parameters to ensure continued functionality.

Procurement is typically driven by service and maintenance demand rather than new manufacturing integration. Dichlorodifluoromethane is supplied as a liquefied gas under pressure, available in cylinders and drums sized for industrial use.

Supply is subject to national and regional regulatory controls, with recovered and reclaimed grades being the predominant market form in most jurisdictions. Technical-grade material is the standard specification encountered.

Compliance with environmental protocols is essential for all transactions involving this substance. Buyers must ensure that all documentation and handling procedures meet the rigorous standards required for controlled chemical substances.