NIST TRC ThermoML Dataset

Crystal Structures and Thermochemical Properties of n-Nonylammonium Dihydrogen Phosphate C9H19NH3·H2PO4(s) and n-Octylammonium Dihydrogen Phosphate C8H17NH3·H2PO4(s) Zhang, L.J.; Tan, Z.C.; Chen, J.T.; Di, Y.Y.; Journal of Chemical & Engineering Data 2011, 56, 4491-4498

Journal: Journal of Chemical & Engineering Data
Sample Quantity(ies): Molar enthalpy of solution
Methodology: ISOPERIBOL
Phase(s): Liquid
Substances:
1. water H2O (XLYOFNOQVPJJNP-UHFFFAOYSA-N) - Not stated in the document
2. 1-nonylammonium dihydrogen phosphate C9H24NO4P (UBYYQOPBOIARJM-UHFFFAOYSA-N) - Synthesized by the authors

Data

P = 101 kPa, T = 298.15 K
m (mol kg^-1)	H_m^sol (kJ mol^-1)
0.829	32.987
4.980	28.637
5.400	28.515
5.830	28.424
6.220	28.363
6.660	28.282
7.060	28.205
7.880	28.144
8.310	28.102
1.250	32.245
1.670	31.553
2.100	30.851
2.490	30.36
2.920	29.892
3.730	29.345
4.470	28.972
4.570	28.768

21164; water + 1-nonylammonium dihydrogen phosphate; 00004:04046