366 SALT TEST 



a white porcelain or enamel vessel. Two or three drops of 

 potassium chromate indicator are then added to the solution. 

 The silver nitrate solution is then added from a burette until 

 the sample assumes a reddish-brown color. Each c.c. of silver 

 nitrate solution used will represent 0.1 per cent of salt. Thus 

 25.5 c.c. of solution used would indicate the presence of 2.55 

 per cent salt in the sample. The use of a salt test is essential 

 to uniformity of product. 



QUESTIONS 



1. What is the purpose of the acid test in hutter making? 



2. How is it operated? 



3. How may lime water be used in the place of other neutralizes? 



4. How is the test for moisture in butter operated? 



5. Explain the use of the salt test. 



