96 BIBLIOGRAPHY OF ANALYTICAL CHEMISTRY OF MANGANESE 



1900: 9. McKenna, a. G. The Analysis of Chrome and Tungsten 

 Steels. 



Eng. Min. J., 70, 124; Chem. Ztg., 24, 243, Rep; Analyst, 25, 301. 

 Precipitation by means of potassium chlorate, solution of the 

 precipitate in hydrochloric acid and potassium nitrite, separation 

 from iron by means of acetates, re-precipitation by means of 

 bromine, and ignition to mangano-mangainic oxide. 



1900: 10. MiGNOT, A. Dosage volunietrique du manganese dans 

 les fers, fontes et aciers. 



Ann. chim. anal, appl., 5, 172; Chem. Centrbl., 1900, b, 65; J. 

 Soc. Chem. Ind., 19, S54; J. Chem. Soc. (Lond.), 78, 690; School 

 Mines Quart.. 22, 94. 

 Determination by oxidation to permanganic acid by means of bis- 

 muth tetroxide and titration with hydrogen peroxide. 



1900: II. Pattinson, J., and H. S. Note on the Determination of 

 Manganese as Sulphide. 



Chem. News, 81, 193; J. Chem. Soc. (Lond.), 78, 443; Chem. 



Centrbl., 1900, a. 1244. 

 Discussion of the incomplete precipitation as sulphide. 



1900: 12. Truchot, p. Analyse des cuivres et des mattes indus- 

 trielles. 



Ann. chim. anal, appl., 5, 442. 



Separation from cobalt and nickel, and determination by precipita- 

 tion as manganese ammonium phosphate. Determination in 

 commercial copper. 



