... the formula CCl4. It was formerly widely used in fire extinguishers, as a precursor to refrigerants, and as a cleaning ... ethyl ether, chloroform and petroleum ether immiscibility. In case of fire or hot objects can be decomposed into carbon dioxide, ... boron, bromine, calcium, copper, iodine and nickel, the determination of boron, bromine, chlorine, molybdenum, phosphorus, silver, tungsten and vanadium ...