20 MODERN BUTTER MAKING. 



danger of it becoming too weak before all of it is 

 used. Some buttermakers prefer placing a small 

 quantity of water in an earthen .jar and then pour- 

 ing acid into it until it is of the proper strength. 

 Great care must be used when water is used as a 

 diluent, because when sulphuric acid is mixed with 

 water great heat is produced. When the acid is 

 poured into water it boils and foams and some of 

 it may spatter over the sides of the jar and burn 

 the hands or clothing. Sulphuric acid should al- 

 ways be handled very carefully since a drop of it 

 on the clothing will burn a hole in it and on the 

 hands may bum the skin and make it sore. It is 

 well to have a weak solution of ammonia at hand, 

 which should be applied at once in ease of an acci- 

 dent with sulphuric acid. Water may also be used 

 in place of the ammonia, if the latter is not at hand, 

 as it weakens the acid and thereby renders it less 

 destructive. 



16. Pilling vessels from the carboy. It is quite a 

 task to fill bottles or any vessel from carboys with- 

 out spilling acid or meeting with an accident. Some 

 creamerymen draw acid from carboys with a pi- 

 pette, not realizing that a slight accident might cost 

 them their lives, by getting sulphuric acid into the 

 throat. A convenient device is Burke's Pneumatic 

 Acid Syphon, which can be tbtained from creamery 

 supply houses. 



