Abstract : it is proposed that the sturdiness of silicic acid congealed gel is a key factor to make the reaction of producing “ " lead trees ” successful . the better conditions of preparing silicic acid congealed gel are detemined . the success rate of this oxidation - reduction equilibrium is raised by 90 % 文摘:提出了生成“铅树”反应成功的关键是硅酸凝胶的坚固性，找到了较好的硅酸凝胶的制备条件，使该氧化还原平衡移动的反应成功率提高了90以上
