143734.fig.003
Figure 3: (a) UV-VIS spectral scan of reaction mixture of L-ascorbic acid and sodium hexachloroplatinate, [H+] = 0.14 mol dm−3,  mol dm−3 at 303 K. (1) (L-ascorbic acid) =  mol dm−3, (2) (sodium hexachloroplatinate) =  mol dm−3, (3) immediately after mixing, (4) after 15 minutes, curve (5–8) minutes. (b) Inset: spectra of the above reaction mixture after 24 hr.