Density
and speed of sound data for dilute aqueous solutions of four linear
2-alkoxyethanols, H–(CH2)
n
–O–CH2–CH2–OH,
C
n
E1 for n = 1, 2, 3, 4, were measured using the Anton Paar DSA 5000 vibrating-tube
densimeter and sound analyzer in the temperature range from 278.15
to 343.15 K and at atmospheric pressure. Standard molar volumes and
standard molar isentropic compressions were evaluated from the measured
data. Present data were compared with values available for selected
linear aliphatic polyethers and poly(ethylene glycols) and structure–property
relationships were analyzed. Apparent molar quantities of aqueous
2-butoxyethanol in wider concentration range were evaluated and effects
of aggregation of the solute molecules were considered.