Apparent Molar Volumes and Expansibilities of Thiourea, 1,3-Dimethylurea, and 1,3-Dimethylthiourea in Water at Temperatures from T = (278.15 to 318.15) K and Atmospheric Pressure Ivanov, E.V.; Abrosimov, V.K.; Journal of Chemical & Engineering Data 2013, 58, 1103-1111