Abstract The experiment of determination of acetic acid in vinegar has been arranged in some university and high school textbooks. But because of the deep color of the aged vinegar, the decolorization efficiency of activated carbon is low, which seriously affects the progress of the experiment. The decolorization efficiency of commercial activated carbon, self-made sawdust activated carbon, bamboo activated carbon, peanut shell activated carbon, cooked bone activated carbon and walnut shell activated carbon for aged vinegar were studied systematically. The results showed that:when decolorizing aged vinegar, the activated commercial activated carbon had the highest efficiency, and the self-made bamboo activated carbon was slightly inferior to the former; in decolorization, oscillation was better than non-oscillation; the decolorization efficiency was the highest when the volume of the decolorized liquid was in proper proportional to the decoloring agent; the colorless clear liquid could be obtained quickly by centrifugation.
HE Jing, ZHANG Dong-Qing, QIAO Jin-Suo. Study on Decolorization Efficiency of Charcoal (Activated Carbon)[J]. Chinese Journal of Chemical Education, 2019, 40(17): 86-89.
