A Practical Guide to Iron And Steel Works Analyses Being Selections From Labo
A Practical Guide to Iron And Steel Works Analyses Being Selections From Labo
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In our eReader you can find the full English version of the book. Read A Practical Guide to Iron And Steel Works Analyses Being Selections From Labo 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 A Practical Guide to Iron And Steel Works Analyses Being Selections From Labo
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To quickly assess the difficulty of the text, read a short excerpt:
Dry the precipitate and filter.
Ignite, cool, and weigh.
108 LABORATORY NOTES.
The filter should be thoroughly dried, and the ignition should be cautiously begun, so as to avoid highly heating the precipitate before the organic part of the filter is burnt away. The precipitate should be white (not grey) before removing the capsule to the hottest part of the muffle, where it should remain for an hour. Unless this is done, there is danger of the precipitate so clinging to the filter-paper that it... be- comes impossible to burn off the paper. During ignition, the precipitate loses water and is converted into magnesium pyrophosphate (Mg 2 P 2 7 ), thus 2Mg(NH 4 )P0 4 . 6H 2 = Mg 2 P 2 O 7 + 2NH 3 + 7H 2 O. EXAMPLE Grammes.
Weight of capsule -f ash + precipitate 1 7*3946 capsule . . . . = 17*3862 ash and precipitate . . = 0*0084 filter ash . . . . = 0*0008 precipitate (Mg 2 P 2 7 ) . - 0*0076 Magnesium pyrophosphate contains 36*243 per cent, of magnesia (MgO).
Log 36-243 = 1-5592241.
Then, as 1 gramme was taken for the estimation, the weight of Mg 2 P 2 7 X 36*243 = percentage of MgO.
What to read after A Practical Guide to Iron And Steel Works Analyses Being Selections From Labo?
You can find similar books in the "Read Also" column, or choose other free books by Macfarlane, Walter, D. 1767 to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
Dry the precipitate and filter.
Ignite, cool, and weigh.
108 LABORATORY NOTES.
The filter should be thoroughly dried, and the ignition should be cautiously begun, so as to avoid highly heating the precipitate before the organic part of the filter is burnt away. The precipitate should be white (not grey) before removing the capsule to the hottest part of the muffle, where it should remain for an hour. Unless this is done, there is danger of the precipitate so clinging to the filter-paper that it... be- comes impossible to burn off the paper. During ignition, the precipitate loses water and is converted into magnesium pyrophosphate (Mg 2 P 2 7 ), thus 2Mg(NH 4 )P0 4 . 6H 2 = Mg 2 P 2 O 7 + 2NH 3 + 7H 2 O. EXAMPLE Grammes.
Weight of capsule -f ash + precipitate 1 7*3946 capsule . . . . = 17*3862 ash and precipitate . . = 0*0084 filter ash . . . . = 0*0008 precipitate (Mg 2 P 2 7 ) . - 0*0076 Magnesium pyrophosphate contains 36*243 per cent, of magnesia (MgO).
Log 36-243 = 1-5592241.
Then, as 1 gramme was taken for the estimation, the weight of Mg 2 P 2 7 X 36*243 = percentage of MgO.
What to read after A Practical Guide to Iron And Steel Works Analyses Being Selections From Labo?
You can find similar books in the "Read Also" column, or choose other free books by Macfarlane, Walter, D. 1767 to read onlineMoreLess
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