72 BIBLIOGRAPHY OF ANALYTICAL CHEMISTRY OF MANGANESE 



1891: 18. Moore, T. Volumetric Estimation of Manganese. 



Chem. News, 63, 66; Eng. Min. J., 51, 234; Jsb. Chem., 1891, 2479; 

 Chem. Centrbl., i89i,a, 554; J. Chem. Soc. (Lond.), 61,962; Ztschr. 

 angew. Chem., 1891, 523; Chem. Ztg., 15, 33, Rep.; Ber., 24, 

 407, Ref. ; Bull. soc. chim. (3), 6, 621; Chem. Ind., 14, 498; 

 Wagner's Jsb., 37, 209; Berg- u. huttemn. Ztg., 50, 185; J. Anal, 

 chem., 5, 237; Chem.-techn. Rep., 31, a, 267. 

 Voliunetric determination by forming manganic metaphosphate, 

 and titrating directly for this compoiind, with a reducing 

 agent. 



1891: 19. NoRRis, G. L. Determination of Manganese in Mangani- 

 ferous Slags and Ores. 



J. Anal. Chem., 5, 430; Chem. News, 64, 242; Jsb. Chem., 1891, 

 2482; Chem. Centrbl., 1892, a, 181; Chem. Ztg., 15, 271, Rep.; 

 Bull. soc. chim. (3), 8, 539; Ztschr. angew. Chem., 1891, 650; 

 J. Iron Steel Inst., 1891, b, 330; J. Chem. Soc. (Lond.), 62, 385; 

 Wagner's Jsb., 37, 209; Berg- u. hiittenm, Ztg., 51, 41; Iron, 38, 

 449; Chem.-techn. Rep., 31, b. 297; Deutsche chem. Ztg., 1891, 

 409. 



Solution in nitric and hydrofluoric acids, precipitation by potassium 

 chlorate, re-solution of precipitate in oxalic acid or ferrous 

 sulphate solution, and titration for the excess of the reducing 

 agent. 



1891: 20. Namias, R. Methode zur schnellen Ausfiihrung von 

 Schlacken-Analysen. 



Stahl u. Eisen, 11, 579; Jsb. Chem., 1891, 2461; Chem. Centrbl., 



1891, b, 493. 

 Use of Volhard method of determination (1870: 14). 



1891: 21. Pattinsok, J. and H. S. On the Determination of Man- 

 ganese in its Ores and Alloys. 



J. Soc. Chem. Ind., 10, ^^2; Jsb. Chem., 1891, 2483; Chem. Centrbl., 

 1891, a, 109 1 ; J. Chem. Soc. (Lond.), 62, 536; Ztschr. angew. 

 Chem., 1891, 380; Chem. Ind., 14, 498; Wagner's Jsb., 37, 140; 

 School Mines Quart., 12, 335. 



Gravimetric and volumetric methods. A study of the ignition of 

 maganese carbonate and of the hydrated peroxide, with reference 

 to gravimetric determinations. Comments on volumetric methods 

 in use at present and a modified form of the Pattinson method. 

 See 1879: 9. 



1891: 22. Regelsberger, F. Zur Werthbestimmung des Almiiini- 



ums und seiner Legirungen. 



Ztschr. angew. Chem., 1891, 476. 

 Determination in coinmercial aluminum. 



