28 BIBLIOGRAPHY OF ANALYTICAL CHEMISTRY OF MANGANESE 



1872: II. Tamm, H. On the Metallurgy of Manganese, and the 

 Docimastic Assaying of Manganese Ores. 



Chem. News, 26, 11 1; Am. Chemist, 3, 177; PoL Centrbl., 1872, 1348. 

 Dry assay with various fluxes. 



1873: I. Brunner, A. Schnell durchfiihrbare colorimetrische Probe 

 auf Mangangehalt des Roheisens, Stahls, Eisens, und Erze. 



Oester. Ztschr. Berg- u. Hiittenw., 21, 341; Chem. Centrbl., 1873, 

 757; Bull. soc. chim. (2), 21, 278; J. Chem. Soc. (Lond.), 27, 

 604 and 816; Chem.-techn. Rep., 12, b, 196; Wagner's Jsb., 20, 

 10; Pol. Centrbl., 1873, 1367; Dingl. pol. J., 210, 278. 

 Conversion to sodium manganate and comparison of solutions. 



1873: 2. GiBBS, W. On the Estimation of Manganese as Pyrophos- 

 phate. 



Chem. News, 28, 51; Jsb. Chem., 1873, 934; J. Chem. Soc. (Lond.), 



27, 92. 

 Precipitation by means of salt of phosphorus. See 1867 : 3. 



1874: I. KoppMAYER, M. Ueber A. Briinner's colorimetrische 

 Probe auf Mangangehalt des Stahls, Eisens, und der Erze. 



Dingl. pol. J., 211, 133; Jsb. Chem., 1874, 988; Chem. Centrbl., 

 1874, 138; J. Chem. Soc. (Lond.), 27, 1009; Pol. Centrbl., 1874, 

 395; Berg- u. hiittenm., Ztg., 33, 109. 

 Regards Briinner's method as valueless. See 1873: i. 



1874: 2. MoRRELL, T. T. Estimation of Manganese. 

 Am. Chemist, 5, 213; Jsb. Chem. 1874, 988. 



Colorimetric method depending upon the liberation of iodine in 

 solution, after precipitation by bromine. 



1874: 3. PiESSE, C. H. The Estimation of Silicon, Graphite, Man- 

 ganese, Aluminium, and Calcium in Pig Irons. 



Chem. News, 29, no; Jsb. Chem., 1874, 986; Bull. soc. chim. (2), 



22, 67; J. Chem. Soc. (Lond.), 27, 711. 

 Separation from iron by the basic acetate method and precipitation 

 by bromine. 



1874: 4. Parry, J. Estimation of Manganese in Spiegeleisen. 



Chem. News, 29, 86; Jsb. Chem., 1874, 987; Am. Chemist, 4, 434; 



J. Chem. Soc. (Lond.), 27, 712; Bull. soc. chim. (2), 22, 68. 

 Adaptation of Fresenius-Will method, after solution in nitric acid 



and ignition of the residue left on evaporation. 



1874: 5, PoucHET, A. G. Revue des methodes d'analyse des pro- 

 duits industriels: Titrage et assai des manganeses. 

 Monit. scientif., 16, 1139. 



Comments of Mohr (1855: i), Fresenius-Will (1S43: 3), and Bunsen 

 (1853: i) methods for the determination of peroxide; also of 

 method involving oxidation of sulphurous acid by chlorine 

 evolved, and precipitation of baritim sulphate. Outlines of 



