sodium lauryl sulfate; boric acid; n-dodecyltrimethylammonium chloride in further solvent(s) Kinetics; Irradiation (UV/VIS); the H3BO3 buffer soln. of BNAH, Co(edta)(1-) and/or dodecyltrimethylammonium chloride and sodium dodecylsulfate is irradiated at 30°C byPyrex-filtered light; monitored by the reacted amount of BNAH at 359 nm;