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An apparatus for vapor pressure measurements of organic solids using a computer controlled null-detector (1991)

Tobaly, P.

[S.l.] : American Institute of Physics (AIP)

Review of Scientific Instruments 62 (1991), S. 2011-2015

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ISSN: 1089-7623

Source: AIP Digital Archive

Topics: Physics , Electrical Engineering, Measurement and Control Technology

Notes: An apparatus is described for the measurement of vapor pressures of low volatility solids and liquids by a static method in the range 10−2–100 mm Hg and 30 °C–300 °C. The method consists in inserting between the pressure gauge (here a capacitance manometer) and the product to be tested, a membrane that is maintained in equipressure by a suitable control loop. Experimental problems related to this arrangement are discussed. A test of the apparatus with a known product (benzoic acid) has been performed. The results have been found to be in good accordance with data found in the literature.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1063/1.1142355

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