PUTREFACTION PRODUCTS. 



171 



Tests for Oxyacids. 



1. Color Test. Test a little of the solution with Millon's re- 

 agent. A red color results. 



2. Bromine Water Test. Add a few drops of bromine water 

 to some of the filtrate. A turbidity or precipitate is observed. 



Test for Skatole-carbonic Acid. 



Ferric Chloride Test. Acidify some of the filtrate with hydro- 

 chloric acid, add a few drops of ferric chloride solution and heat. 

 Compare the end-reaction with that given by phenol. 



