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書籍 書目1 - 10,共 21 頁;搜尋條件:... the fire, by smearing over its surface with a moistened mixture of equal parts...
" ... the fire, by smearing over its surface with a moistened mixture of equal parts by measure of crystallized borax and common salt of tartar, which, when in fusion, is a ready solvent of such impurities*, and then exposing it, upon a platina tray, under... "
The Quarterly Journal of Science, Literature and Art - 第 103 頁
1830
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Journal of the Franklin Institute

1829
...impurities,* and then exposing it, upon a platina tray, under an inverted pot, to the heat of a wind furnace. The ingot, on being taken out of the furnace, is immediately...flattened into leaf, drawn into wire, or submitted to any ot the processes of which the most ductile metals are capable. The perfection of the methods above...
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Arcana of Science and Art: Or, An Annual Register of Useful Inventions and ...

John Timbs - 1830
...metal, be reduced, by the processes of heating and forging, to any other form that may be required. It may then be flattened into leaf, drawn into wire,...ductile metals are capable. The perfection of the above method of giving complete malleability to platina is proved by comparing the specific gravity...
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The Elements of Experimental Chemistry, 第 2 卷

William Henry - 1831
...course o( a few hours, will entirely dissolve the flux left adhering to the surface. The ingots may be flattened into leaf, drawn into wire, or submitted...processes, of which the most ductile metals are capable. Platinum has the following properties: It isa white metal, resembling silver in colour, but greatly...
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Encyclopaedia Americana: A Popular Dictionary of Arts, Sciences ..., 第 10 卷

Francis Lieber, Edward Wigglesworth, Thomas Gamaliel Bradford - 1832
...It is then to he exposed upon a platina tray, under an inverted pot, to the heat of a windfurnace. The ingot may then be flattened into leaf, drawn into...of which the most ductile metals are capable. The mean specific gravity of the metallic cake of platina powder, when taken from the press, is 10 ; that...
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Encyclopædia Americana: A Popular Dictionary of Arts, Sciences ..., 第 10 卷

Francis Lieber - 1832
...It is then to be ex]>osed upon a platina tray, under an inverted pot, to the heat of a windfurnace. The ingot may then be flattened into leaf, drawn into wire, or submitted to anyofthe processes of which the most ductile metals are capable. The mean sjwcitic gravity of the metallic...
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Abstracts of the Papers Printed in the Philosophical Transactions of ..., 第 2 卷

Royal Society (Great Britain) - 1833
...metal, be reduced by the processes of heating and forging to any other form that may be required. It may then be flattened into leaf, drawn into wire,...ductile metals are capable. The perfection of the above method of giving complete malleability to platina, is proved by comparing the specific gravity...
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Abstracts of the Papers Printed in the Philosophical Transactions of ..., 第 2 卷

Royal Society (Great Britain) - 1833
...metal, be reduced by the processes of heating and forging to any other form that may be required. It may then be flattened into leaf, drawn into wire,...ductile metals are capable. The perfection of the above method of giving complete malleability to platina, is proved by comparing the specific gravity...
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Encyclopædia Americana: A Popular Dictionary of Arts, Sciences ..., 第 10 卷

Francis Lieber, Edward Wigglesworth - 1835
...It is then to be exposed upon a platina tray, under an inverted pot, to the heat of a windfurnace. The ingot may then be flattened into leaf, drawn into...of which the most ductile metals are capable. The mean spocific gravity of the metallic cake of platina powder, when taken from the press, is 10 ; that...
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The Eclectic Magazine of Foreign Literature, Science, and Art, 第 9 卷

1846
...completely to agglutinate its particles, and convert it into a solid ingot. This ingot or bar could then be flattened into leaf, drawn into wire, or submitted to any of the processes by which the most ductile metals are wrought. We have passed over unnoticed many practical minutira...
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The Eclectic Magazine: Foreign Literature, 第 9 卷

John Holmes Agnew, Walter Hilliard Bidwell - 1846
...completely to agglutíñate its pnrticles, and convert it into a solid ingot. This ingot or bar could then be flattened into leaf, drawn into wire, or submitted to any of the processes by which the most ductile metals are wrought. We have passed over unnoticed many practical minutiae;'...
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