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Speeds of sound and isentropic compressibilities of {xCH3O(CH2)2OH+(1−x)H(CH2)ν(OCH2CH2)2OH} (ν=1, 2, and 4) at the temperature 298.15 K

✍ Scribed by A. Pal; W. Singh

Publisher
Elsevier Science
Year
1997
Tongue
English
Weight
209 KB
Volume
29
Category
Article
ISSN
0021-9614

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✦ Synopsis

The speed of sound u has been obtained at a frequency of 4 MHz in 4xCH3O(CH2)2OH + (1 -x)H( CH2)n (OCH2CH2)2OH5 for n = 1, 2, and 4 over the whole range of x at T = 298.15 K and atmospheric pressure, using a NUSONIC velocimeter based on the sing-around technique. The excess molar volumes were taken from a previous paper and combined with the measured values of the ultrasonic speeds to give estimates of the product KS,m of the molar volume and the isentropic compressibility kS, and the excess quantity K E S,m . The deviations of the speeds of sound u D were compared with the mixing function du calculated in the paper. The behaviour of u, u D , du, and K E S,m with composition and number of carbon atoms in the aliphatic chain of the alkoxyethanol is discussed.

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