(a)	Splitting of –S–S– bond → –S* + –S*	~429 kJ/mol [40]
(b)	The splitting of hydroxyl OH− → H+ + O2−	~429 kJ/mol [40]
(c)	The splitting (radiolysis) of H2O → OH− + H+	~499 kJ/mol [40]
(d)	The progressive oxidation –S products to cysteic acid [25]
	$-\mathrm{S}-\mathrm{S}-\stackrel{{\mathrm{O}}_2}{\to }-\mathrm{S}-{\mathrm{SO}}_3^{-} \dots \mathrm{S}-\mathrm{sulphonate}$
	$-{\mathrm{S}}^{*}+-{\mathrm{S}}^{*}\stackrel{{\mathrm{O}}_2}{\to }-\mathrm{SO}-\mathrm{S}-\dots \mathrm{cystine} \mathrm{monoxide}$
	$-{\mathrm{S}}^{*}+-{\mathrm{S}}^{*}\stackrel{{\mathrm{O}}_2}{\to }-{\mathrm{SO}}_2-\mathrm{S}-$… cystine dioxide
The above S-product are step by step transformed to cysteic acid R-SO3.