CHLORALUM HYDRATUM. 



CHLOROFORMUM. 



23 



Triturate some Chloral Hydrate with camphor.- 



Chloral Hydrate is used principally as a hypnotic. Dose, 0.5 Gm. 

 Two other hypnotics of the methane group are Sulphonethylmethane (trional), 

 and Sulphonmethane (sulphonal). 



Properties: 

 Sulphonethylmethane : 



Appearance 



Color 



Odor 



Taste 



Solubility : 

 H 2 O, A= 



D 



C 2 H 5 OH, A= 

 B= .... 



Sulphonmethane : 

 Appearance 

 Color 

 Odor 

 Taste ....... ________ 



Solubility : 

 H 2 O, A= 



C 2 H 5 OH, A= 

 B .... 



Triturate each of these substances with Chloral 



Both of these drugs are used as quietants and hypnotics, but are less certain in 

 action than Chloral, and somewhat more dangerous. Dose (of either), 0.75 Gm. 



CHLOROFORMUM. 



Chloroform, or Trichlormethane (CHC1 3 ), is prepared on a commercial scale by 

 treating a pure acetone with chlorinated lime. Usually, less than i% of alcohol is 

 added to prevent decomposition. Chloroform should be kept in well-stoppered bottles, 

 in a cool place, and well protected from light. It should never be used near an open 

 flame, lest irritating decomposition vapors be developed. 



Properties: 



Appearance 



Color 



Odor 



Taste 



Volatility 



Miscibiliry: 



H 2 O _... 



C 2 H 5 OH 



Ether 



Oils . 



Evaporate some Chloroform from filter paper laid on a warm glass plate. When 

 Chloroform is completely evaporated, note if filter paper has any foreign 

 odor 



The principal use for Chloroform is for the production of general anaesthesia. 



Official preparations are : Aqua Chloroformi, Linimentum Chloroformi, Spiritus 

 Chloroformi. 



