Cylinder & Anesthesia Machine
The main components of soda lime are (AIIMS May 2012)
|A|| Calcium hydroxide, Ca(OH)2 (about 75%)|
|B|| Water, H2O (about 20%)|
|C|| Sodium hydroxide, NaOH (about 3%)|
|D||Potassium hydroxide, KOH (about 1%).|
Calcium hydroxide, Ca(OH)2 (about 75%)
One more question on circle system could not get choices properly.
The circle system is a more complex system in which exhaled gas is recirculated to enhance economy and reduce pollution.
It incorporates unidirectional valves and a means of absorbing carbon dioxide.
Constituents of sodalime
a. 4% NaOH
b. 1% KOH
c. 14-19% Water
d. CaOH MAJOR COMPONENT
Constituents 20% BaOH
Monovalent hydroxide are more reactive than divalent hydroxide so carbonmonoxide production chances more. Thus pure calcium hydroxide absorber is prepared.
Absorbents can also react with with volatile anaesthetic agents.
Trichloroethylene can react with sodalime and phosgene can form.
Sevoflurane can react with sodalime comp A can form.