The Romance of Modern Chemistry
Forfatter: James C. Phillip
År: 1912
Forlag: Seeley, Service & Co. Limited
Sted: London
Sider: 347
UDK: 540 Phi
A Description in non-technical Language of the diverse and wonderful ways in which chemical forces are at work and of their manifold application in modern life.
With 29 illustrations & 15 diagrams.
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FROM SOLUTIONS TO CRYSTALS
through the primary sodium crystals and act on the
plate, but are blocked to a large extent by the opaque
gold in the spaces between the crystals. The impression,
therefore, obtained on the plate differentiates between the
primary crystals and the rest of the alloy.
Fiq. 15.—Crystals which have separated from a fused alloy
of copper and tin ; as seen under the microscope.
This extremely interesting method of studying the
crystalline condition of alloys can obviously be employed
only when there is a fairly well-marked difference between
the two metals in relation to the Röntgen rays; the
scope of its application is therefore somewhat limited.
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