 | Chemical Society (Great Britain) - 1904 - 1214 Seiten
...793—801).— The bismuth method for the estimation of manganese, originally proposed by Schneider, is based on the fact that a manganous salt in the presence of an excess of nitric acid is oxidised to permanganic acid by bismuth tetroxide. The permanganic acid formed is very stable in nitric... | |
 | American Chemical Society - 1907 - 1042 Seiten
...acid a mangauous salt is oxidized to permanganic acid by bismuth tetroxide. Blair states that : — "The permanganic acid formed is very stable in nitric...solution is cold, but in hot solutions the excess of bismuth tetroxide is rapidly decomposed and then the nitric acid reacts with the permanganic acid and... | |
 | Albert Howard Low - 1908 - 388 Seiten
...to run through the filter. THE BISMUTHATE METHOD FOR THE DETERMINATION OF MANGANESE* This method is based on the fact that a manganous salt in the presence...formed is very stable in nitric acid of 1.135 SP- §r- when the solution is cold, but in hot solutions the excess of the bismuth tetroxide is rapidly... | |
 | Frederick Pearson Treadwell, William Thomas Hall - 1910 - 832 Seiten
...in the hot closet at 110°. After grinding and sifting the product is ready for use. The process is based on the fact that a manganous salt in the presence...of nitric acid is oxidized to permanganic acid by sodium bismuthate. The permanganic acid formed is very stable in nitric acid of 1.135 sp. gr. when... | |
 | Albert Howard Low - 1913 - 390 Seiten
...part of manganese. 14. The Bismuthate Method for the Determination of Manganese.* — This method is based on the fact that a manganous salt in the presence...nitric acid is oxidized to permanganic acid by bismuth tctroxide. The permanganic acid formed is very stable in nitric acid of 1.135 SP- ff"- when the solution... | |
 | Wilfred W. Scott - 1917 - 948 Seiten
...recipitation effected. VOLUMETRIC METHODS Bismtithatc Method for Determination of Manganese 1 The method is based on the fact that a manganous salt in the presence...permanganic acid formed is very stable in nitric acid of 1 .135 sp.gr., when the solution is cold, but in hot solutions the excess of the bismuth tetroxide... | |
 | Frederick Pearson Treadwell - 1919 - 982 Seiten
...in the hot closet at 110°. After grinding and sifting the product is ready for use. The process is based on the fact that a manganous salt in the presence...of nitric acid is oxidized to permanganic acid by sodium bismuthate. The permanganic acid formed is very stable in nitric acid of 1.135 sp. gr. when... | |
 | Albert Howard Low - 1922 - 408 Seiten
...£(0.4920), or 0.2952. 15. The Bismuthate Method for the Determination of Mangamese.* — This method is based on the fact that a manganous salt in the presence...formed is very stable in nitric acid of 1.135 SP- 8r- when the solution is cold, but in hot solutions the excess of the bismuth tetroxide is rapidly... | |
 | Wilfred Welday Scott - 1923 - 918 Seiten
...solution, boiling hot. VOLUMETRIC METHODS BISMUTHATE METHOD FOR DETERMINATION OF MANGANESE The method is based on the fact that a manganous salt in the presence...acid formed is very stable in nitric acid of 1.135 sp.gr., when the solution is cold, but in hot solutions the excess of the bismuth tetroxide is rapidly... | |
 | Frederick Pearson Treadwell - 1924 - 836 Seiten
...NaBiO3. The product sold under this name is of more or less indefinite composition. The process is based on the fact that a manganous salt in the presence...of nitric acid is oxidized to permanganic acid by sodium bismuthate. 2 Mn++ + 5 BiO,~ + 14 H+ -» 2 Mn<V + 5 Bi+++ + 7 H2O The permanganic acid formed... | |
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SP- g1- when the solution is cold, but in hot solutions the excess of the bismuth tetroxide is rapidly decomposed and then the nitric acid reacts with the permanganic acid, and as soon as a small amount of manganous salt is formed... 
