Table 2.

Physicochemical properties and reaction rates with H and OH radicals of water, methanol, ethanol, isopropanol, n-propanol, and n-butanol [39], [40].

Compound	Water	Methanol	Ethanol	Isopropanol	n-Propanol	n-Butanol
Formula	H2O	CH4O	C2H6O	C3H8O	C3H8O	C4H10O
Molecular weight	18.02	32.04	46.07	60.10	60.10	74.12
Density (g/L)	997	791	789	781	800	810
Vapor pressure (kPa)	3.17	16.9	7.87	6.02	2.76	0.86
Water solubility (mg/L)		miscible	miscible	miscible	miscible	79
Henry’s law constant (atm/mol/L)		6.74 × 10-3	7.43 × 10-3	1.10 × 10-3	7.94 × 10-3	8.76 × 10-3
Octanol-water partition coefficient		0.18	0.50	1.12	1.78	6.92
Reaction rate with H radical*	1.00 × 101	0.26 × 107	1.70 × 107	7.40 × 107	2.40 × 107	3.50 × 107
Reaction rate with OH radical**		0.97 × 109	1.90 × 109	1.90 × 109	2.80 × 109	4.20 × 109

*Reaction rate for the reaction of alcohol with H radicals (H₂ generation).

**Reaction rate for the reaction of alcohol with OH radical (H₂O generation).