Quantitative Metallurgical Analysis Selected Methods for Chemical Analaysis of
Quantitative Metallurgical Analysis Selected Methods for Chemical Analaysis of
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C. Of per- manganate in ferrous sulphate oxydized by the MnO .
One c. C. Of the permanganate being equal to . 002 gram of man- METALLURGICAL ANALYSIS 31 ganese, 20 c. C. Is equal to . 04 gram Mn, and 2 grams of the sample having been taken . 04 X ioo 2 per cent, manganese.
References : Ford, Jour. Am. Chem. Soc. , Vol. XX, page 504. Ford, Trans. Am. Inst. Min. Engs. , Vol. IX, page 397.
Julian's modification of the above methods is as follows : Ob- tain the manganese dioxide precipitate exactly... as given above ; when the manganese is all oxidized to dioxide, cool, and dilute to 400-450 c. C. Now add from a burette an excess of standard hydrogen peroxide, to completely dissolve the precipitate. The reaction is : MnO () +H O +H SO 4 = MnSO 4 +2H 2 O+O 2 . Immediately titrate the excess of hydrogen peroxide with a stand- ard potassium permanganate solution. The reaction is : 2KMnO 4 +5H 2 O, +4H SO 4 = 2HKSO 4 +2MnSO 4 + 8H 9 O-f5O . The hydrogen peroxide solution is prepared by thoroughly mix- ing one pound of hydrogen peroxide with about eight liters of water and ioo c.
What to read after Quantitative Metallurgical Analysis Selected Methods for Chemical Analaysis of?
You can find similar books in the "Read Also" column, or choose other free books by Charles Frederick Sidener to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
C. Of per- manganate in ferrous sulphate oxydized by the MnO .
One c. C. Of the permanganate being equal to . 002 gram of man- METALLURGICAL ANALYSIS 31 ganese, 20 c. C. Is equal to . 04 gram Mn, and 2 grams of the sample having been taken . 04 X ioo 2 per cent, manganese.
References : Ford, Jour. Am. Chem. Soc. , Vol. XX, page 504. Ford, Trans. Am. Inst. Min. Engs. , Vol. IX, page 397.
Julian's modification of the above methods is as follows : Ob- tain the manganese dioxide precipitate exactly... as given above ; when the manganese is all oxidized to dioxide, cool, and dilute to 400-450 c. C. Now add from a burette an excess of standard hydrogen peroxide, to completely dissolve the precipitate. The reaction is : MnO () +H O +H SO 4 = MnSO 4 +2H 2 O+O 2 . Immediately titrate the excess of hydrogen peroxide with a stand- ard potassium permanganate solution. The reaction is : 2KMnO 4 +5H 2 O, +4H SO 4 = 2HKSO 4 +2MnSO 4 + 8H 9 O-f5O . The hydrogen peroxide solution is prepared by thoroughly mix- ing one pound of hydrogen peroxide with about eight liters of water and ioo c.
What to read after Quantitative Metallurgical Analysis Selected Methods for Chemical Analaysis of?
You can find similar books in the "Read Also" column, or choose other free books by Charles Frederick Sidener to read onlineMoreLess
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