Table 2.

Dissociation energy, expressed in eV values, required to break the bonds (covalent, coordinate, etc.) that bind atoms within molecules. Examples represent component molecules within tissue water and biofluids, and also ionic forces within the crystal lattice of hydroxyapatite. Data reproduced with thanks from Mó, O; Yáñez, M, et al. J Phys Chem A. 2005, 109(19), 4359–4365 [3].

Dissociation Energy of Selected Chemical Bonds
Type of Bond	Dissociation Energy (eV)
C = O	7.1
C = C	6.4
O-H	4.8
N-H	4.1
C-C	3.6
C-N	3.0
C-S	2.7
Fe-OH	0.35
HA Lattice	310