Ethyl Chloride Anesthesia is a potent anesthetic. If it has a boiling point 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.
Though ethyl chloride induces anesthesia quickly, the maintenance of a steady depth of anesthesia is extremely difficult and the margin of safety is narrow. It is now rarely used.
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 .
Ethyl chloride is a nonirritating, highly volatile and inflammable liquid with a boiling point of 12°C. The vapor has a characteristic but not unpleasant odor.