Antioxidant for carbonaceous material and method

摘要

Novel metal salts of boric acid esters of saccharides have been found to be extremely useful for imparting a high oxidation-resistance to carbonaceous materials. The metal salts of the boric acid esters according to the present invention are water-soluble and can be easily formulated into aqueous solutions thereof. Therefore, the treatment of carbonaceous materials can be easily, simply done using an aqueous solution of the present metal salt of the boric acid ester.