52 BIBLIOGRAPHY OF ANALYTICAL CHEMISTRY OF MANGANESE 



Chem. News, 51, 230; J. Chem. Soc. (Lond.), 48, 690; Ber., 18, 

 198, Ref.; Bull. soc. chim. (2), 45, 356; Wagner's Jsb., 31, 17; 

 Monit. scientif., 27, 1205; Oester. Ztschr. Berg- u. Hiittenw., 34, 

 130; J. Soc. Chem. Ind., 4, 419; Dingl. pel. J., 257, 204; Arch. 

 Pharm., 223, 314; Iron, 25, 516; J. Iron Steel Inst., 1885, 248. 

 Fusion with sodium carbonate and borax, solution of the fused mass, 

 addition of an excess of ferrous sulphate, and titration for this 

 excess with permanganate. 



1885: 13. Lunge, G. Ueber die Analyse von ubermangansauren 

 Kali und Braunstein durch Wasserstoffsuperoxyd. 



Ber., 18, 1872; J. Chem. Soc. (Lond.), 48, 1162; Chem. Ind., 8, 255; 



J. Soc. Chem. Ind., 4, 613; Chem.-techn. Centr. Anz., 1885, 775; 



Chem.-techn. Rep., 24, b, 248. 

 Addition of the permanganate to an excess of hydrogen peroxide, 



in the presence of sulphuric acid, and measurement of the evolved 



oxygen. 



1885: 14. Mathesius, W. Eine neue gewichtsanalytische Mangan- 

 bestimmung. 



Chem. Ztg., 8, 1777; Ber., 1885, 34, Ref.; Ztschr. anal. Chem., 

 25, 116; Chem. News, 52, 224; 53, 74; Wagner's Jsb., 31, 18; 

 Monit. scientif., 27, 982. 

 Separation from iron by means of zinc oxide and precipitation by 

 the Wolff method. See 1883: 22. 



1885: 15. Meineke, C. Zur Maassanalyse des Mangans. 



Chem. Ztg., 9, 1478 and 1787; Dingl. pol. J., 257, 202; Rep. anal. 

 Chem., 5, 389; Berg- u. huttenm. Ztg., 45, 35. 



Determination by weighing as sulphate, by titration with permanga- 

 nate and antimony chloride, and by the chlorate method. See 

 1883: 10. 



1885: 16. Osmond. Methode colorimetrique de dosage du man- 

 ganese. 



Bull. soc. chim. (2), 43, 66; Chem. Centrbl., i88s, 234; Jsb. Chem., 

 1885,1935; J. Iron Steel Inst., 1885, a, 275; J. Chem. Soc. (Lond.), 

 48,690; Ztschr. anal. Chem., 25, 552; Ber., 18, 344, Ref.; Chem. 

 Ind., 8, 119; Wagner's Jsb., 31, 15; Dingl. pol. J., 257, 201; Arch. 

 Pharm., 223, 285; Chem.-techn. Rep., 24, 249. 

 Oxidation by means of lead peroxide in the presence of metaphos- 

 phates and nitric acid. 

 1885: 17. Reinhardt, C. Ueber N. Wolff's gewichtsanalytische 

 Manganbestimmung. 



Stahl und Eisen, 5, 81; Ztschr. anal. Chem., 25, 114; Wagner's 



Jsb., 31, 14; DingL pol. J., 257, 201. 

 Separation from calcium in the presence of ammonium acetate. See 



1883: 22. 



