40 



CHEMICALS AND APPARATUS USED IN THE 

 CHEMICAL ANALYSIS OF MILK AND CREAM. 



Chemicals: 



Ammonia water. 



Borax or boric acid. 



Caustic soda. 



Caustic soda tenth- 

 normal solution. 



Caustic potash. 



Corrosive sublimate. 



Ether. 



Ferric chlorid. 



Formaldehyde. 



Hydrochloric acid, con- 

 centrated. 



Potassium bichromate. 



Phenolphthalein . 



Sulphuric acid, com- 

 mercial. 



Sulphuric acid, pure 

 concentrated. 



Litmus paper, blue. 



Litmus paper, red. 



Turmeric paper. 

 Apparatus: 



Balance, analytical, 

 with weights. 



Balance, cream test. 



Balance, Westphal. 



Babcock tester. 



Beakers, 250 c. c. and 

 500 c. c. 



Burner, Bunsen. 



Burette, 50 c. c., gradu- 

 ated to tenths, with 

 stopcock. 



Apparatus Continued . 



Cylinder, for acid hy- 

 drometer. 



Cylinder, for lactome- 

 ter. 



Condenser for oven. 



Desiccator. 



Dishes, milk. 



Dishes, evaporating, 

 either porcelain or 

 platinum. 



Drying oven, double- 

 walled. 



Forceps. 



Hydrometer, acid. 



Jars, sample. 



Jars, stoneware. 



Lactometer. 



Measure, acid, 17.5 c. c. 



Pipette, 17.6 c. c. 



Pipette, 50 c. c. 



Stirring rods, glass. 



Support for burette. 



Test bottles, Babcock, 

 for milk. 



Test bottles, Babcock, 

 for cream. 



Test bottles, Babcock, 

 for skim milk. 



Tongs, crucible. 



Test tubes, 6 by J inch. 



