(2006)  who both directly measured the dissociation energy of water by determining the onset of the dissociative continuum [D.sub.0](HO-H) = 41145.9(0.1) [cm.sup.-1].
As shown in Table 6, there are only two relatively direct measurements leading to a value for the gas phase enthalpy of formation of [H.sub.2][O.sub.2]-the calorimetry measurement of Giguere (1955)  and the [D.sub.0](O-O) dissociation energy of Luo et al.
More recently, Lester and coworkers [161-164] measured the vibrational predissociation of H03 putting an upper limit on its bond dissociation energy [D.sub.0](HO-OO) moving the estimate for the enthalpy of formation upward by about (10 to 15) kJ [mol.sup.-1].
The gas phase enthalpy of formation of [H.sub.2][O.sub.2] is also known relatively well (to less than 0.2 kJ [mol.sup.- 1]) being derived largely from a spectroscopic measurement of the [D.sub.0](H0-0H) dissociation energy (with a precision of about 3 [cm.sup.-1]).
Stoicheff, "On the dissociation energy of molecular hydrogen," Can.
Stwalley, "The dissociation energy of the hydrogen molecule using long-range forces," Chem.
Stoicheff, "Dissociation Energy of the hydrogen molecule," Phys.
Herzberg, "Dissociation energy of hydrogen molecule," J.
Boye, Cray Valley USA, and Ed Terrill, Akron Rubber Development Laboratory Table 1--bond dissociation energies Bond type Dissociation energy
(kJ/mol) C-C 335 C-S-C 314 C-S-S-S-C 230 C-[S.sub.x]-C 147 C-O-[Zn.sup.2+]-O-C 293 Table 2--formulation and identification Ingredient Phr SEV PER TMA ZDMA PDM Polyisoprene (IR) 100 100 100 100 100 Zinc oxide 5 Stearic acid 2 TMQ 1 1 1 1 1 Sulfur 3.6 TBBS 4.8 TMA 5 ZDMA 5 PDM 5 Dicumyl peroxide 5 4.6 4.8 1