TABULAR SUMMARY. 



[§ 93 EcliALIUM. 



127 



Caustic Alkalies. 



Tannic Acid. 



soluble 



soluble yellow 

 soluble red 



soluble yellow 

 pp. insoluble 

 excess 



(pp. ammonia) 

 soluble 

 soluble 



Sulphuric Acid, Coxcentra 



no pp. 

 no pp. 



no pp. : pp. 



pp-("i-) : 



no pp. (be.) pp. 1 in oOO no ]ip. dilute 

 no pp. —^ —> 



I 

 pp. (basic) ... j 



pp. (neu- 

 tral) 



pp. yellow no pp. 



pp. greenish 



pp. nl. or pp. 



basic 



dark rose on warming 



yellow dark-brown-vwTiolet~»'gray-brown 

 crystalline green or brown colourless* 



red ; violet ou dilution 



Fehling, green pp. 



Fehling. white pp. 



Fehling, ])p. 



phos.-molybdic, 1 in 10,1)00 ; picric, etc. 



no pp. usual reagents 



Fehling reduced 



ferric chloride, brown-green pp. 

 phospho-molybdic, picric, etc. 



(Frijhde's solution, blood-red colour) 



phospho-molybdic, yellow'w>'b!ue 

 no pp. with most reagents 



colourless or reddish-brown 

 yellow to dark red 



Authorities differ. 



red with de- 

 composition! 



(hydrochloric, brown-green colour) 

 (Frijhde's solution, yellow colour) 



