Explanatory notes
… usually presented liquefied in steel cylinders. Used as a refrigerant, as an anaesthetic and in organic synthesis. … as a solvent for sulphur, oils, fats, varnishes, petroleum, resins, etc. (5) Chloroethane (ethyl chloride). Gaseous, … in special containers; used in fire- extinguishers and as a refrigerant (2) Bromoethane (ethyl bromide). Colourless …