TESTS 1471 



TABLE OF TESTS.— Continued. 



TESTS 



Name. 



Use. 



Reagents. 



Reaction. 



Application. 



Remarks. 



Bcettcher's test. 



Glucose. 



See Boettger's test. 



Boettger's test. 



Alcohol. 



Sol. molybdic acid in Blue color, 

 sulphuric acid. 



Add R. 



Boettger's test. ( Alkalimetry. Alcoholic tincture of Red color is turned 



petals of Coleus Ver- green, 

 i schaeffeltii. 



= 



:ger's test. Gaseousammonia. Alkannin paper. 



Red color turns Expose strip of R. to 

 blue. the gas. 



Boettger's test. 



Ergot in rye-flour. 



(a) Ether, 

 acid. 



(b) Oxalic Reddish color. 



Heat for several min- 

 utes with an equal 

 bulk of a and a few 

 crvstals of b. 



To urine add pinch of Very delicate ; al- 

 a and a little b: boil. bumin must be 

 removed. 



tger's test. 



Boettger's test. 



Glucose. 



(a) Bismuth. (*) Strong Black ppt. 

 sol. sodium hydrate. I 



» test. Hydrogen diox- (a) Cadmium iodid Deep ultramarine- Add a and a little b. 



id. starch -paste. (*) blue color. 

 Ferrous sulphate. 



tger's test. : Hydrogen d i o x - Ammoniacal sol. sil- Cloudiness and re- Heat liquid with a few 



id. ver nitrate (not con- ductiou of silver. drops R. 

 taining free ammo- ; 

 nia). 



Nitric acid in pot- (a) Sol. of brucin. Red to brownish- 

 able water. (£) Sulphuric acid. red color. 



Mix 3 drops of water, 

 2 of a, and 3 or 4 of b. 



Boettger's test. Nitrous acid. (a) Diluted sulphuric Blue color. 



acid, (b) Cadmium 

 iodid starch-paste. 



Add a and b. 



Boettger's test. 



Ozone. 



Strip filter-paper 

 moistened with 

 acid-free sol. of gold 

 chlorid. 



Violet color. 



Expose R. to gas. 



Boettger's test. 



Ozone. 



Strip filtering paper Brown color, 

 dipped into a sol. of 

 thallium protoxid. 



Expose R. to gas. 



t tger's test. 



tger's test. 



Safranin. 



Sulphuric acid. 



Blue color. 



Add R. If water is 

 added color becomes 

 green. 



Sulphocyanates (a) Tr. guaiaci. (b) Dil. Blue color. 

 (Rhodanates). ; sol. copper sulphate. 



Dip strip filter-pa- 

 per in a ; let dry ; 

 m oi st en with i; I 

 place on it a drop of ' 

 liquid. 



Boettger's test. 



Water in ether. Carbon disulphid. 



Milkiness. 



Agitate gently with 

 equal bulk R. 



s's test. 



Nitric acid. 



1 Sulphuric acid 10, sol. 

 ferrous sulphate 1. 



Brown zone. 



Heat R.,and pour 

 liquid cautiously on 

 top. 



torntraeger's test. Acidimetry ; alka- Concentrated tincture C o 1 o r 1 e s s with Add R.. and shake up 

 limetry- orange-peel. 1 acids, lemon-yel- with ether. 



low with alka- 

 lies. 



Bouchan 



hardat's test. Alkaloids. 



Potass. iodo-iodid=io- Brown ppt. 

 din 10, potass, iodid 

 20, water 500. 



Add R. to liquid. 



Bourgoin's test. 



Nitrobenzol in oil Sol. potass, hydrate. Green color, 

 of bitter almonds. 



Shake 15 drops oil If 20 drops water 

 with 8 of R. are added, two 



layers are 

 formed, upper 

 green, lower 

 yellow. 



Bou ssingault's 

 test. 



Nitric acid. 



j (a) Hydrochloric acid. ' Decolorization. 

 (*) Indigo-solutiou. 



i Acidify with a, and 

 I add drop of*. 



Brandberg's test. Benzol ; benzine, j Pitch. 



R. dissolves in 

 benzol, not in 



benzin. 



Brandes' test. 



Quinin. 



(a) Chlorin-water. (b) Green color. 

 Ammonia. 



Treat liquid with a 



i and b. 



