I a Separation of Arsenic Antimony And Vanadium From Tungsten Ii On the Com
I a Separation of Arsenic Antimony And Vanadium From Tungsten Ii On the Com
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In our eReader you can find the full English version of the book. Read I a Separation of Arsenic Antimony And Vanadium From Tungsten Ii On the Com Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book I a Separation of Arsenic Antimony And Vanadium From Tungsten Ii On the Com
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To quickly assess the difficulty of the text, read a short excerpt:
1 The boiling was continued and a stream of carbon dioxide was passed to remove the excess of sulphur dioxide. When all the sulphur dioxide was expelled the solution was titrated, while still hot, with potassium permanga- nate. The permanganate was standardized, with pure vanadium pentoxide, which had been reduced in the same manner.
The following results were obtained: Vanadio-tungstic acid. Percentage VaOs. Percentage WOs.
0. 2204 ... 65. 47 0. 3396 65. 31 0. 3227 16. 17 0. 3022 I5-92 65. 35 ...0. 3127 15. 90 0. 2460 15-95 65. 20 0. 2487 15. 95 65. 38 0. 1848 16. 09 65. 39 This latter method is so satisfactory that it is recom- mended in preference to the others. The temperature is easily regulated; the piece can be cooled quickly by re- moving the oven ; the danger of loss from creeping is slight ; and the volatile constituent is more quickly removed.
1 Repeated evaporation with hydrochloric acid will also effect this reduction.
'7 CONCLUSIONS.
1. Methods are given for the separation of arsenic, antimony and vanadium from tungsten, which, it is be- lieved, are more satisfactory than those previously de- scribed.
What to read after I a Separation of Arsenic Antimony And Vanadium From Tungsten Ii On the Com?
You can find similar books in the "Read Also" column, or choose other free books by Orland Russell Sweeney to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
1 The boiling was continued and a stream of carbon dioxide was passed to remove the excess of sulphur dioxide. When all the sulphur dioxide was expelled the solution was titrated, while still hot, with potassium permanga- nate. The permanganate was standardized, with pure vanadium pentoxide, which had been reduced in the same manner.
The following results were obtained: Vanadio-tungstic acid. Percentage VaOs. Percentage WOs.
0. 2204 ... 65. 47 0. 3396 65. 31 0. 3227 16. 17 0. 3022 I5-92 65. 35 ...0. 3127 15. 90 0. 2460 15-95 65. 20 0. 2487 15. 95 65. 38 0. 1848 16. 09 65. 39 This latter method is so satisfactory that it is recom- mended in preference to the others. The temperature is easily regulated; the piece can be cooled quickly by re- moving the oven ; the danger of loss from creeping is slight ; and the volatile constituent is more quickly removed.
1 Repeated evaporation with hydrochloric acid will also effect this reduction.
'7 CONCLUSIONS.
1. Methods are given for the separation of arsenic, antimony and vanadium from tungsten, which, it is be- lieved, are more satisfactory than those previously de- scribed.
What to read after I a Separation of Arsenic Antimony And Vanadium From Tungsten Ii On the Com?
You can find similar books in the "Read Also" column, or choose other free books by Orland Russell Sweeney to read onlineMoreLess
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