54 BIBLIOGRAPHY OF ANALYTICAL CHEMISTRY OF MANGANESE 



1886: 4. Bein, S. Ueber die quantitative Abscheidung und Bes- 

 timmung des Zinks. 



Rep. anal. Chem., 1886, 275; Jsb. Chem., 1886, 1939. 

 Separation from iron by the succinate method, and from zinc by 

 treating the ignited oxides with acetic acid. 



1886: 5. Blum, L. Ueber die directe Trennung des Mangans von 

 Eisen. 



Ztschr. anaL Chem., 25, 519; Chem. CentrbL, 1887, 97; Jsb. Chem., 



1886, 1934; Chem. News, 55, 236; Chem. Ztg., 11, 251; Ber.,' 

 19, 850, Ref. ; J. Chem. Soc. (Lond.), 52, 183; Chem. Ind., 9, 

 383; Wagner's Jsb., 32, 344; Rep. anaL Chem., 6, 662; Analyst, 

 II, 234; J. Am. Chem. Soc, 9, 10; Dingl. pol. J., 262, 335. 



Separation from iron by precipitation as ferrocyanide from ammo- 

 niacal tartrate solution. 



1886: 6. Carnot, A. Separation successive du cuivre, du cadmium, 

 du zinc et du nickel ou du cobalt (fer et manganese). 



Bull. soc. chim. (2), 46, 812; C. R., 102, 621 and 678; Eng. Min. 

 J., 41, 340; Jsb. Chem., 1886, 1948; Chem. News, 53, 196; Ztschr. 

 anal. Chem. (1889), 28, 344; Chem. Ztg., 11, 4, Ref.; Ber., 19, 

 364, Ref.; J. Chem. Soc. (Lond.), 50, 650; J. Iron Steel Inst., 



1887, a, 470. 



Separation from nickel and iron by means of hydrogen sulphide in 

 acetic acid solution. 



1886: 7. Christensen, O. T. Beitrage zur Chemie des Mangans 

 und des Fluors. 



J. prakt. Chem., 34, 41; 35, 161; Chem. News, 54, 96; 55, 153. 

 Detection by the formation of permanganic acid on the electrolysis 

 of the manganese salt in hydrofluoric acid solution. 



1886: 8. Cheever, B. W. Colorimetric Estimation of Manganese 

 in Steel. 



Trans. Am. Inst. Min. Eng., 15, 102; J. Iron Steel Inst., 1885, b, 



736; J. Anal. Chem., i, 88. 

 Criticisms of the method of determination by means of lead per- 

 oxide and nitric acid. 



1886: 9. Classen, A. See 1884: 4. 



1886: 10. Classen, A. See 1884: 5. 



1886: II. Classen, A., and Ludwig, R. Quantitative Analyse 

 durch Elektrolyse. 



Ber., 19, 323; Jsb. Chem., 1886, 1894. 

 Separation from mercury by electrolysis. 



