This study deal's with the feasible use of a commercial activated carbon in the uptake of H2SO4 from aqueous solution and with the regeneration of the spent product. Thermogravimetry TG and FT-IR spectroscopy are used in the analysis of samples. The activated carbon is a very effective material for the uptake of H2SO4. Using a 9.0 mol dm(-3) H2SO4 solution, the mass increase is 37.8 wt%. From the sample obtained, the H2SO4 can be removed largely either by heating at 250 degrees C for 2 h in a N-2 atmosphere or by washing thoroughly with distilled water for 24 h. The mass loss in both cases amounts to 33.6wt%. The FT-IR spectroscopy results indicate that the surface chemistry of the carbon is not affected, noticeably, at least, after its contact with the H2SO4 solution. The behavior of H2SO4 toward carbon is compared with that of HNO3.