SONIC STUDIES OF THE PHYSICAL PROPERTIES OF LIQUIDS. I. THE SONIC INTERFEROMETER. THE VELOCITY OF SOUND IN SOME ORGANIC LIQUIDS AND THEIR COMPRESSIBILITIES¹

Abstract

SONIC STUDIES OP LIQUIDS. I 759The rate of vaporization and condensation is affected to a remarkable degree by the state of dryness. Ammonium chloride which has been dried for ten days at 60°in a high vacuum appears to be completely dissociated in the vapor state. Urbana, Illinois

Speeds of sound and isentropic compressibilities of (cyclohexanone + dichloromethane, or trichloromethane, or trichloroethene, or 1,2-dichloroethane) atT= 303.15 K

“…(2,4) The speeds of sound u in pure liquids and binary mixtures were measured at T = (303.15 ± 0.01) K and at a frequency of 3 MHz with a quartz-crystal interferometer in the same manner as described previously. (4)(5)(6)(7)(8)(9) (10) and that of C 6 H 10 O is also in agreement with the value of 1388.0 m · s −1 determined by Rao and Naidu. (11) The uncertainty in u is about ±0.5 m · s −1 .…”

The Isothermal Compressibility of Organic Liquids by Ultracentrifugation. Correlation with Surface Tension

“…As liquids became more compressible Table 2. All data in Table 2 (8) or piezonletry (9). Although the least square equation was obtained for data at 20 "C, the same equation was used to represent the relation between p and y for liquids in the temperature ranges from 0-50 "C.…”

Thermodynamic properties of acetone calculated from accurate experimental speed of sound measurements at low temperatures and high pressures

“…In table 1, which summarizes the experimental speed of sound data that have been published for acetone [7][8][9][10][11][12][13][14] and used (with the exception of Ref. [14]) to develop the NIST equation [1], it can be seen that, to the best of the author's knowledge, the available data are not very recent and moreover highly accurate results are available only near atmospheric pressure.…”