Ethyl Chloride Anesthesia is a potent anaesthetic. If it has a bp of 12.5°C and hence is a gas at room temperature, so it is liquefied and stored under pressure in a bottle with a cap and seal. It is used as a spray.
It is cardiotoxic, explosive, reacts with soda lime, and is flammable. It is used as a spray to hypothermise areas and render numb for incision of small abscesses.
Ethyl Chloride Anesthesia is pleasant, VP 988, flammable, affected by soda lime. 3- 5 mL is sufficient to induce anaesthesia in 1-2 minutes.
Ethyl Chloride Anesthesia was the last to be introduced in the 19th century, and like ether, it was flammable. It was a unique agent that was first used as a spray to induce local anesthesia, but if inhaled, it also produced general anesthesia.
In the early 20th century, several unsatisfactory volatile anesthetics were introduced. Ethylene was used clinically in 1923. This agent required high concentrations to achieve anesthesia, had an unpleasant smell, and was explosive.
You can read more about ethyl Chloride Anesthesia at this wikipedia link http://en.wikipedia.org/wiki/Chloroethane .