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A proposal of a new technique for the density measurement of solids

机译：一种新的固体密度测量技术的建议

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A new experimental technique for the measurement of unstable solid density that uses an oscillating U-tube was proposed. The technique was based on the simultaneous lever rules for the mass and the volume of two phase, solid + liquid (molten solid), in the U-tube. By means of this technique, the solid density can be easily determined from the overall density of solid + liquid with the combination of the literature phase diagram. To ensure the reliability, density of an amphiphilic congruent melting compound, tetrahydrofuran clathrate (THF . 17H(2)O), was measured at 276.37 K under the atmospheric pressure. The density of the hydrate was estimated to be 998.40 kg/m(3). The value was very close to the theoretical one, 999.14 kg/m(3) This technique needs a phase diagram of clathrate though it is very useful because of its simplicity and easiness to expand to a wide range of temperatures and pressures. (C) 2000 Elsevier Science B.V. All rights reserved. [References: 18]
机译：提出了一种新的用于测量不稳定固体密度的实验技术，该技术使用了振荡的U型管。该技术基于U形管中固态和液态（熔融固态）两相的质量和体积的同时杠杆规则。通过这种技术，结合文献相图，可以很容易地从固体+液体的总密度确定固体密度。为了确保可靠性，在大气压下在276.37 K下测量了两亲性全同熔融化合物四氢呋喃笼形物（THF。17H（2）O）的密度。水合物的密度估计为998.40 kg / m（3）。该值非常接近理论值999.14 kg / m（3）。该技术需要包合物的相图，尽管它非常有用，因为它简单易行，可以扩展到很宽的温度和压力范围。 （C）2000 Elsevier Science B.V.保留所有权利。 [参考：18]

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