TESTS 1497 



TABLE OF TESTS.— Continued. 



TESTS 



Schoenbein's test. 



Hydrogen dioxid. j Sol. ferric chlorid and Blue color, 

 potassium ferricy- 

 anid (red). 



Add R. 



1 to 10,000,000. 



ichcenbein's test. 



Nitrous acid in | (a)Sol. pyrogallicacid. Brown color, 

 potable water. , (b) Dilute sulphuric 

 acid. 



Add a and b. 



ichcenbein's test. 





Nitrous acid in Indigo-sol. to water to Blue color, 

 potable water. | render it blue : add [ 

 hydrochloric acid ; 

 stir, and add potas- 

 sium petitasulphid 

 till blue coior disap- 

 pears ; filter 



Add suspected water 

 to R. 



choenn's test. 



Cobalt. 



Neutral sol. sodium Blue color, 

 sulphocyanid. 



AddR. 



; choenn's test. 



Hvdrosren dioxid. Sol. titanic acid. 



Yellow to deep- ; Add R. 

 red color. 



■ choenn's test. 



Molybdic acid. Sulphuric acid. 



Blue color. 



Heat with R. 



'chcenn's test. 



Phosphorus. 



Magnesium ribbon. 



1 



! chcenn's test. 



Evolution of phos- 

 phin. 



Heat with R.; then add 

 a little water. 



Sulphur. 



(a) Sodium, (b) Sol. 

 sodium nitroprussid. 



Red color. 



i:hreiter's test. 



Glucose. 



:huetzenberger's 

 test. 



Mixture of sodium 

 salicylate 2, copper 

 sulphate 2, sodium 

 hydrate 10, water 40. 



Red precipitate. 



Heat with a ; dissolve 

 in water ; add b. 



Heat with R. 



Anthrachinon. 



Alkaline sol. sodium Red color, 

 hyposulphite 



Heat with R. 



:hultz's test. 



Cellulose. 



Dissolve 25 parts zinc 

 chlorid, 8 potass, 

 iodid, in S)A water; 

 filter through asbes- 

 tos, and add iodin 

 to saturation. 



Turns cellulose AddR. 

 cell-walls blue to 

 purple. 



i's test. 



Cellulose. 



Dissolve zinc in pure 

 hydrochloric acid ; 

 evaporate in pres- 

 ence of metallic zinc 

 t o syrupy consist- 

 ence ; saturate with 

 potass, iodid and io- 

 din. 



Turns cellulose Add R. 

 cell-walls blue to 

 purple. 



e's test. 



Alkaloids. 



Mixture of sat sol. so- 

 dium phosphate 4, 

 antimonv chlorid 1. 



White precipitate. ! Add R. 



e's test. 



Alkaloids. 



Mixture of antimony 

 chlorid and phos- 

 phoric acid. 



White precipitate. Add R. 



e's test. 



lulze's test. 





Salicylic acid. 



Sol. copper sulphate. 



Ammonia. 



Sol. chlorinated lime 

 and carbolic acid. 



Green color. 



Add R. to neutral solu- 

 tion of a salicylate. 



Green color. 



Guanidin salts. 



Nessler's reagent. See 

 JVessler's test. 



Add R. 



White or pale-yel- 

 low precipitate, 

 flocculent, but 

 later becoming 

 dense. 



Add R. 



