BIBLIOGRAPHY OF ANALYTICAL CHEMISTRY OF MANGANESE 7 



Detection by fusion with sodium carbonate. Determination by pre- 

 cipitation as carbonate and ignition to mangano-manganic oxide. 

 Separation from iron by means of benzoates. 



1836: 3. WiTTSTEiN, G. C. Ueber die Priifung des kauflichen 

 Braunsteins auf seinen Gehalt an reinen Superoxyd. 



Buchner's Repert. (2), 7, 169; Arch. Pharm., 58, 199. 

 Comments on current methods for the vaktation of manganese 

 ores. 



1837: I. DoBEREiNER. (Title uiikiiown.) 



Berzelius' Jsb., 16, 159; Chemist, i, 237. 



Separation from cobalt through differences in solubility of the chlo- 

 rides in ether. 



1837: 2. Ebelmen. Nouveau moyen d'analyse les minerais de 

 manganese. 



Ann. des Mines (3), 12, 607; Pharm. Centrbl., 1838, 808; L'Inst. 

 (1838), 6, 331; J. prakt. Chem., 14, 312; J. Frank. Inst., 26, 332. 



Determination of peroxide by solution in hydrochloric acid, passage 

 of the chlorine evolved into a solution of sulphurous acid, and pre- 

 cipitation with barium chloride. 



1837: 3. RiCHTER, W. Trennung des Manganoxyduls von Zink- 

 oxyd. 



J. prakt. Chem., 9, 159; Pharm. Centrbl., 1837, 90; Ann. des Mines 

 (3). I3> 460; Ann. Chem. (Liebig), 24, 309; Berzelius' Jsb., 17, 

 190. 

 Separation from zinc by ignition of the nitrates and treatment of the 

 oxides with acetic acid. 



1837: 4. ScHEERER, T. Ueber eine Methods das Kobaltoxyd, sowie 

 das Nickeloxyd und Manganoxyd vom Eisenoxyd, von der 

 Arsenik- und Arsenigen-saure zu trennen. {Title from Ann. 

 derPhys. [Pogg.].) 



Nyt. Mag. Naturvidenskabeme, Physiographiske Forening Chris- 

 tiania, 1840, 46; Ann. der Phys. (Pogg.), 42, 104; Pharm. Centrbl., 

 1838,7; J. prakt. Chem,, 12, 354; Ann. des Mines, 13, 454; Dingl. 

 pol. J., 68, 463; Arch. Pharm., 66, 202. 

 Separation from iron, arsenic and arsenious acids, by precipitation as 

 basic sulphate or chloride. 



1838: I. GiESELER. Priifung eines im Handel vorkommenden ge- 

 pulverten Braunsteins auf seinen Gehalt an Manganhyperoxyd 

 und an fremden Bestandtheilen. 



Arch. Pharm., 65, 209. 



Comments on Dufios' (1832:3), Thomson's (1836:2), and other 

 methods for the determination of peroxide. 



