Mixture of N-Glycylglycine + Water + Methanamine, N,N-dimethyl-, N-oxide

Datasets

1. Mass ratio of solute to solvent (2)
2. Molar enthalpy (2)
3. ρ_l - Mass density, kg/m3 (4)
4. c_sound,fluid - Speed of Sound, m/s (2)

Mass ratio of solute to solvent of N-Glycylglycine (1) [ref]

Operational conditions:

• Temperature, K = 298.15 (Liquid)
• Pressure, kPa = 101 (Liquid)

Solvent: Amount concentration (molarity), mol/dm3 of Methanamine, N,N-dimethyl-, N-oxide (3) - Liquid	Mass ratio of solute to solvent of N-Glycylglycine (1) - Liquid
1.0000	0.1403
2.0	0.0744
3.0	0.0443
4.0	0.0267

Mass ratio of solute to solvent of N-Glycylglycine (1) [ref]

Operational conditions:

• Temperature, K = 298.15 (Liquid)
• Pressure, kPa = 101 (Liquid)

Solvent: Amount concentration (molarity), mol/dm3 of Methanamine, N,N-dimethyl-, N-oxide (3) - Liquid	Mass ratio of solute to solvent of N-Glycylglycine (1) - Liquid
1.0000	0.1403
2.0	0.0744
3.0	0.0443
4.0	0.0267

Molar enthalpy of dilution, kJ/mol [ref]

Operational conditions:

• Temperature, K = 298.15 (Liquid)
• Solvent: Molality, mol/kg = 101 (Liquid)
• Initial molality of solute, mol/kg = 0.025 (Liquid)
• Pressure, kPa = 101 (Liquid)

Final molality of solute, mol/kg - Liquid	Molar enthalpy of dilution, kJ/mol - Liquid
0.0002	1.5675
0.0003	1.4665
0.0003	1.4136
0.0004	1.362
0.0005	1.296
0.0006	1.2594
0.0007	1.2335
0.0008	1.1766
0.0009	1.1456
0.0009	1.1324
0.0010	1.0674
0.0011	1.0513
0.0012	1.038
0.0013	0.9893
0.0014	0.9802
0.0014	0.9643
0.0015	0.9228
0.0016	0.9116
0.0017	0.9066
0.0018	0.8659
0.0019	0.8602
0.0019	0.8577
0.0020	0.8171
0.0021	0.8124

Molar enthalpy of dilution, kJ/mol [ref]

Operational conditions:

• Temperature, K = 298.15 (Liquid)
• Solvent: Molality, mol/kg = 101 (Liquid)
• Initial molality of solute, mol/kg = 0.025 (Liquid)
• Pressure, kPa = 101 (Liquid)

Final molality of solute, mol/kg - Liquid	Molar enthalpy of dilution, kJ/mol - Liquid
0.0002	1.5675
0.0003	1.4665
0.0003	1.4136
0.0004	1.362
0.0005	1.296
0.0006	1.2594
0.0007	1.2335
0.0008	1.1766
0.0009	1.1456
0.0009	1.1324
0.0010	1.0674
0.0011	1.0513
0.0012	1.038
0.0013	0.9893
0.0014	0.9802
0.0014	0.9643
0.0015	0.9228
0.0016	0.9116
0.0017	0.9066
0.0018	0.8659
0.0019	0.8602
0.0019	0.8577
0.0020	0.8171
0.0021	0.8124

Mass density, kg/m3 [ref]

Operational conditions:

• Pressure, kPa = 101 (Liquid)
• Temperature, K = 298.15 (Liquid)

Fixed		Measured
Solvent: Molality, mol/kg of Methanamine, N,N-dimethyl-, N-oxide (3) - Liquid	Molality, mol/kg of N-Glycylglycine (1) - Liquid	Mass density, kg/m3 - Liquid
0.2500	0.0000	999.557
0.2500	0.0314	1001.304
0.2500	0.0397	1001.773
0.2500	0.0450	1002.045
0.2500	0.0478	1002.223
0.2500	0.0566	1002.688
0.2500	0.0626	1003.009
2.0	0.0000	1003.311
2.0	0.0366	1005.215
2.0	0.0388	1005.338
2.0	0.0414	1005.473
2.0	0.0510	1005.958
2.0	0.0578	1006.35
2.0	0.0662	1006.736

Mass density, kg/m3 [ref]

Operational conditions:

• Temperature, K = 298.15 (Liquid)
• Pressure, kPa = 101 (Liquid)

Solvent: Amount concentration (molarity), mol/dm3 of Methanamine, N,N-dimethyl-, N-oxide (3) - Liquid	Mass density, kg/m3 - Liquid
1.0000	1052.06
2.0	1034.13
3.0	1025.43
4.0	1024.37

Mass density, kg/m3 [ref]

Operational conditions:

• Pressure, kPa = 101 (Liquid)
• Temperature, K = 298.15 (Liquid)

Fixed		Measured
Solvent: Molality, mol/kg of Methanamine, N,N-dimethyl-, N-oxide (3) - Liquid	Molality, mol/kg of N-Glycylglycine (1) - Liquid	Mass density, kg/m3 - Liquid
0.2500	0.0000	999.557
0.2500	0.0314	1001.304
0.2500	0.0397	1001.773
0.2500	0.0450	1002.045
0.2500	0.0478	1002.223
0.2500	0.0566	1002.688
0.2500	0.0626	1003.009
2.0	0.0000	1003.311
2.0	0.0366	1005.215
2.0	0.0388	1005.338
2.0	0.0414	1005.473
2.0	0.0510	1005.958
2.0	0.0578	1006.35
2.0	0.0662	1006.736

Mass density, kg/m3 [ref]

Operational conditions:

• Temperature, K = 298.15 (Liquid)
• Pressure, kPa = 101 (Liquid)

Solvent: Amount concentration (molarity), mol/dm3 of Methanamine, N,N-dimethyl-, N-oxide (3) - Liquid	Mass density, kg/m3 - Liquid
1.0000	1052.06
2.0	1034.13
3.0	1025.43
4.0	1024.37

Speed of sound, m/s [ref]

Operational conditions:

• Pressure, kPa = 101 (Liquid)
• Temperature, K = 298.15 (Liquid)

Fixed		Measured
Solvent: Molality, mol/kg of Methanamine, N,N-dimethyl-, N-oxide (3) - Liquid	Molality, mol/kg of N-Glycylglycine (1) - Liquid	Speed of sound, m/s - Liquid
0.2500	0.0000	1572.9
0.2500	0.0314	1575.6
0.2500	0.0397	1576.14
0.2500	0.0450	1576.55
0.2500	0.0478	1576.8
0.2500	0.0566	1577.48
0.2500	0.0626	1577.83
2.0	0.0000	1656.5
2.0	0.0366	1658.82
2.0	0.0388	1658.87
2.0	0.0414	1659.27
2.0	0.0510	1659.96
2.0	0.0578	1659.8
2.0	0.0662	1659.96

Speed of sound, m/s [ref]

Operational conditions:

• Pressure, kPa = 101 (Liquid)
• Temperature, K = 298.15 (Liquid)

Fixed		Measured
Solvent: Molality, mol/kg of Methanamine, N,N-dimethyl-, N-oxide (3) - Liquid	Molality, mol/kg of N-Glycylglycine (1) - Liquid	Speed of sound, m/s - Liquid
0.2500	0.0000	1572.9
0.2500	0.0314	1575.6
0.2500	0.0397	1576.14
0.2500	0.0450	1576.55
0.2500	0.0478	1576.8
0.2500	0.0566	1577.48
0.2500	0.0626	1577.83
2.0	0.0000	1656.5
2.0	0.0366	1658.82
2.0	0.0388	1658.87
2.0	0.0414	1659.27
2.0	0.0510	1659.96
2.0	0.0578	1659.8
2.0	0.0662	1659.96

Sources

• Interactions of some short peptides with the osmolyte trimethylamine N-oxide in aqueous solution: physico-chemical insights
• Counteracting effects of trimethylamine N-oxide and betaine on the interactions of urea with zwitterionic glycine peptides