l6 BIBLIOGRAPHY OF ANALYTICAL CHEMISTRY OF MANGANESE 



1858: 3. Rose, H, Ueber die Losungen der Manganoxydsalze und 

 liber die Walter Crutn'sche Reaction insbesondere. 



* Monatsber. Akad. Wiss. (Berlin), Nov., 1858; Rep. fur Pharm., 



8, 81. 

 See title. 



1858: 4. Spiller, J. On Some Remarkable Circumstances Tending 

 to Disguise the Presence of Various Acids and Bases in Chemi- 

 cal Analysis. 



J. Chem. Soc. (Lond.), 10, 114 and 117. 



Effect of citrates and grape sugar upon the precipitation of man- 

 ganese. 



1859: I. FiKENTSCHER, F. C. Prlifung der Braunsteinerze auf 

 Sauerstoffgehalt. 



J. prakt. Chem., 17, 173; Wagner's Jsb. , 5, 65. 



Determination of peroxide from the loss of weight suffered by a strip 

 of copper immersed during the solution in hydrochloric acid. 



1859: 2. NoLTE, G. Untersuchung des Braunsteins auf seinen Ge- 

 halt an Mangansuperoxyd. 



Berg-u. hiittenm. Ztg., 18, 149; Ding. pol. J., 152, 136; Chem. Gaz., 

 1859, 288; Pol. Centrbl., 1859, 1079; Chem. Centrbl., 1859, 

 414; Wagner's Jsb., 5, 65; Arch. Pharm., 157, 187. 

 Comments and experiments upon procedure of Fikentscher. See 

 1859: I. 



1859: 3. VON KoBELL. Ueber die Anwendung des phosphorsauren 

 Manganoxyds in der Titriranalyse, und der Phosphorsaure zur 

 Mineralbestimmung. 



J. prakt. Chem., 76, 415. 



Detection by means of violet color produced by phosphoric acid. 



i860: I. Field, F. On the Separation of the Oxides of Nickel and 

 Cobalt from Peroxide of Iron. 

 Chem. News, i, 4. 

 Separation from iron by means of lead oxide (PbO) . 



i860: 2. GoRGEU, A. Sur une combinaison de permanganate et de 

 manganate de potasse. 

 C. R., so, 610. 



Precipitation by means of ammonium sulphide and ignition to man- 

 gano-manganic oxide. 



i860: 3. Lenssen, E. Volumetrische Bestimmung des Mangan- 

 oxyduls. 



J. prakt. Chem., 80, 408; Jsb. Chem., i860, 655; Chem. Centrbl. 



1861, 78; Rep. chim. pure, 3, 139. 

 Volumetric determination by reduction of potassium ferricyanide 

 and titration for the ferrocyanide with permanganate. 



