Table 5. Melting Properties of the Amino Acids and Peptides Used to Calculate Their Solubilitya.
| solute | Tfusi/K | Δhfusi/kJ mol–1 | Δcp,i/J mol–1 K–1 | ref |
|---|---|---|---|---|
| glycine | 569 ± 9 | 22 ± 3 | (152) | |
| alanine | 608 ± 9 | 23 ± 3 | (152) | |
| valine | 529 ± 7 | 44 ± 6 | (55) | |
| leucine | 518 ± 8 | 43 ± 5 | (55) | |
| serine | 519 ± 7 | 28 ± 3 | (55) | |
| gly-gly | 593 ± 7 | 40 ± 6 | 51 ± 6 | (153) |
| gly-gly-gly | 594 ± 7 | 54 ± 7 | 57 ± 15 | (56) |
| ala-ala | 606 ± 7 | 54 ± 7 | 62 ± 18 | (153) |
| ala-ala-ala | 606 ± 7 | 72 ± 9 | 124 ± 8 | (56) |
| gly-ala | 551 ± 7 | 41 ± 5 | 55 ± 6 | (153) |
| ala-gly | 611 ± 7 | 52 ± 7 | 57 ± 3 | (153) |
| gly-gly-ala | 592 ± 10 | 70 ± 8 | 66 ± 7 | (56) |
| gly-ala-gly | 623 ± 7 | 61 ± 7 | 78 ± 11 | (56) |
| ala-gly-ala | 557 ± 8 | 58 ± 7 | 98 ± 5 | (56) |
| leu-gly-gly | 530 ± 7 | 74 ± 8 | 111 ± 11 | (56) |
| gly-leu-gly | 545 ± 7 | 60 ± 7 | 139 ± 11 | (56) |
| gly-gly-leu | 521 ± 7 | 55 ± 7 | 160 ± 7 | (56) |
| gly-ala-leu | 578 ± 7 | 77 ± 9 | 112 ± 6 | (56) |
| gly-ser | 530 ± 8 | 49 ± 6 | 67 ± 6 | (56) |
| ser-gly | 553 ± 7 | 62 ± 7 | 61 ± 9 | (56) |
| ala-ser | 556 ± 7 | 43 ± 5 | 48 ± 6 | (56) |
| ser-ala | 609 ± 7 | 73 ± 8 | 55 ± 3 | (56) |
a
Reported with their experimental uncertainties; melting-point temperature (Tfusi), enthalpy of fusion (Δhfusi), and difference between the molar heat capacity of the liquid and solid phases evaluated at Tfusi (Δcp,i).