CHAPTER VII. 



SOLUTIONS, THEIR USES AND PREPARATION. 



Iodine Solution : — Harrington's solution 

 of iodine is an antiseptic rapidly growing in 

 popular favor. Strength used, i-ioo and 

 1-500. This solution is believed by many to 

 be the best antiseptic now in use for any pur- 

 pose. 



Carbolic Acid Solution as a Disinfect- 

 ant: — Carbolic acid solution may be safely 

 used for the disinfection of personal clothing, 

 bedding, excreta, surgical instruments and 

 Cases in appliances. It cannot be relied upon to de- 



Is Unreliable. stroy spores, and therefor^ should not be used 

 as a disinfectant in tetanus, anthrax, malignant 

 oedema, or in any disease due to invasion of 

 spore-forming bacteria. A one per cent strength 

 solution is said to be sufficiently strong to 

 destroy the germs of cholera, typhoid fever, 

 diphtheria and erysipelas if used hot in suf- 

 ficient quantity, and allowed to stand an hour, 

 so as to completely saturate the material to be 

 disinfected. It will not injure furniture 01 

 woodwork if used in this strength. 



A five per cent (1-20) solution is necessary 

 in surgical practice, in order to be reliable. 

 Fifty-one drams of liquid carbolic acid dis- 

 solved in each gallon of water makes a five per 

 cent solution. Pour boiling water over the 

 carbolic acid and mix thoroughly. To make a 

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