Densities, Apparent Molar Volume, Expansivities, Hepler’s Constant, and Isobaric Thermal Expansion Coefficients of the Binary Mixtures of Piperazine with Water, Methanol, and Acetone at T = 293.15 to 328.15 K

Table 6

The limiting apparent molar expansibility () and isobaric thermal expansion coefficient .

Temperature (K)	293.15	298.15	303.15	308.15	313.15	318.15	323.15	328.15
Binary mixtures
10^6 ×  (m^3·mol^−1·K^−1)
Piperazine + water	—	2.64	3.24	3.84	4.44	5.04	5.64	6.24
Piperazine + methanol	−0.04	0.03	0.10	0.16	0.23	0.29	0.35	0.41
Piperazine + acetone	25.38	46.78	68.18	89.58	110.98	132.38	153.78	—
10^3 ×  (K^−1)
Piperazine + water	—	0.31	0.39	0.46	0.53	0.60	0.67	0.73
Piperazine + methanol	−0.39	0.28	0.95	1.62	2.28	2.93	3.52	4.08
Piperazine + acetone	2.47	4.47	6.44	8.01	9.48	10.92	11.88	—