192 



THE ANALYSIS OF MILK PRODUCTS. 



It is evident that any other degree of dilution may be adopted 

 conveniently according to circumstances, or the proportion of 

 ammonia which may be indicated in the milk. 



The Estimation of Alcohol. About 75 grammes are weighed 

 into a 300-c.c. flask for the estimation of alcohol, and half neut- 



N 

 ralised with -^ soda solution ; about half the volume is distilled 



IS" 

 and collected in a small flask, and neutralised with soda using 



litmus paper as indicator. From this 25 c.c. is distilled, and 

 the density taken at 60 F. by a Sprengel tube. From the 

 density the percentage of alcohol is calculated by Table XXXIII. 



TABLE XXXIII. ALCOHOL TABLE. 



(Calculated by the Author from those of Thorpe and the 

 U.S. Bureau of Standards.) 



