SOLUTIONS USES AND PREPARATION OF. 



small quantity of a five per cent (5%) sol, 

 carbolic acid (1-20) add one dram of the liquid 

 to nineteen drams of water. (See table at 

 close of Chapter VII. for number of grains to 

 each pint. ) 



Bichloride of Mercury solution will de- 

 stroy all forms of bacteria and their spores. 

 Strength 1-500 required for spores — exposure 

 one hour. Bichloride of mercury is not re- 

 liable for the disinfection of excreta, sputum or 

 pus, because of its power to unite with albumin- 

 ous matter, which protects the substance Where It 

 and prevents the solution from penetrating the ^^"^• 

 mass. It is a good disinfectant for linen, etc., 

 strength, 1-1,000, used hot. It is also used in 

 hand disinfection and as a wet pack or dressing 

 in various forms of inflammation. It ruins in- 

 struments or anything in the shape of metals 

 and is injurious to fine woodwork or polished 

 surfaces. 



In making up bichloride of mercury solu- 

 tions, tablets containing seven and a half grains 

 are often used. One of these tablets added tc 

 one pint of water makes a 1-1,000 solution. 

 One to a quart a 1-2,000 solution; 1-1,000 is 

 the strongest solution used for almost any pur- 

 pose. Water is added to obtain the weaker 

 solutions generally used. For example, if you 

 have a quart of 1-1,000 solution prepared and 

 the doctor asks for three quarts of 1-4,000 so- 

 i2g 



