32 BIBLIOGRAPHY OF ANALYTICAL CHEMISTRY OF MANGANESE 



1877: II. Kern, S. Quantitative Analysis of Certain Metals in 

 Iron and Steel. 



Chem. News, 35, 67; Jsb. Chem., 1877, 1057; J. Chem. Soc. (Lond.), 



32,647; Eng. Min. J., 24, 127. 

 Determination in chrome-iron alloys. Use of sodium hypochlorite 



for precipitation advised. 



1877 : 12. Kern, S. On the Estimation of Manganese in Spiegeleisen 

 and Ferro-manganese. 



Chem. News, 35, 247 and 270; Ber., 10, 975; Jsb. Chem., 1877, 

 1062; Chem. Centrbl., 1877,457; Dingl. pol. J., 225, 392; Chem. 

 -techn. Rep., 16, 635. 



Determination in alloys by ignition of mixed oxides of iron and 

 manganese in hydrogen, and then in chlorine, leaving a residue 

 of protosesquioxide. Also direct ignition of the alloy with ammo- 

 nium chloride. 



1877: 13. Kramer, C. Zur Trennung des Mangans von Eisen. 



Ztschr. anal. Chem., 16, 334; Jsb. Chem., 1877, 1063; J. Chem. 



Soc. (Lond.), 32, 805. 

 Separation from iron by the basic acetate method. See Stock- 



mann, 1877: 20. 



1877: 14. MuNROE, C. E. The Estimation of Manganese as Pyro- 

 phosphate. 



Am. Chemist, 7, 287; Jsb. Chem., 1877, 1061; Iron, 9, 555. 

 The influence of ammonia upon the determination as phosphate. 



1877: 15. Parreno, a. G. Determination du manganese mdtal- 

 lique par la voie volumetrique. 



Ann. chim. phys. (5), 11, 571; Jsb. Chem., 1877, 1062; Chem. 



Centrbl., 1877, 615; Am. J. Sci. (3), 14, 418; J. Chem. Soc. 



(Lond.), 32, 924; Pharm. Centrh., 18, 396; Chem. -techn. Rep., 



16, 636. 

 Ignition of mineral to mangano-inanganic oxide, treatment with 



hydrochloric acid and determination of the iodine liberated from 



potassitim iodide, by the chlorine evolved. 



1877: 16. Perrey. (Title unknown.) 



* Bull, de Rouen, 1877, 104; Jsb. Chem., 1877, 1063; Chem. Centrbl., 

 1878, 15; Dingl. pol. J., 226, 194; Chem. -techn. Rep., 16, 640. 



Comparison of Fresenius-Will (1843: 3), Hempel (1858: i), Gay- 

 Lussac (1829: i), Mohr (1855: i), and Bunsen (1853: i) methods 

 for analysis of pyrolusite. 



