TAliULAR SUMMARY. 



[§ 23rl Xanthoxylon. 



Caustic Alkalies. 



insoluble 



(no colour) 



sol. f;iadual red 



pp. incomplete 



no pp. 

 soluble (pp. hot) 



pp. 

 (pp. ammonia) 



soluble 

 soluble yellow 



pp. basic 



Tannic Acid. 



pp. 



no pp. 

 pp. 



Gold Chloride 



Sulphuric Acid, Concentrated. 



pp. yellow 



no pp. 



not dilute 

 not dilute 



no pp. 

 no pp. 



(salt M.P.182' 

 not dilute 



red-brown-^green-wblue 



yellow~vred'>~mauve~>'purple 



khiii 



brown ■vN.intense green 



(acids pp. from ammoniacal soln.) 



colourless 



colourless 



yellowwcarraine 



yellow to greenish-bi'own 



red 



yelloW'«>-blood-red'>«'Violet 



persistent blood-red 



yellow->~orange-red (fluorescent) 



no colours if pure 

 gradual green~vblue~>-violet 



violet~»-cherry-red 



brown~^purple 



colourless (blood -red with KNO3) 



Sundry Precipitanth, etc. 



purple-red 



colourless 



yellow 

 no effect 



yellow 

 no colour 



transient rose 

 ■v>.yellow 

 no colour 



(violet after 

 evaporation) 



pp. usual reagents 



(ferric chloride, red colour) 



(oxidizing agents hasten colours with 

 sulphuric acid) 



(ferric chloride, dark yellow colour) 

 (soluble in ammonia) 



(soluble in ammonia, red) 



iodo-jiotassic iodide, etc. 



(HoSOj with sugar, blue) 



phospho-molybdic, Mayer's solution 



(soluble in ammonia, pp. on heating) 



pp. most alkaloid reagents 



phospho-molybdic, Mayer's solution 

 idem 



picric acid, Mayer's solution 



(dry NH3, purple) 



ferric chloride, dark green ])p. 



Mayer's solution, etc. 



