As the result of hiswork, he could announce the Law of Seriation of RareEarths: all salts of rare earths fall in the same orderof solubility, except the ethyl sulfates and the nitrates.

• 就此项工作的结果来看，他可以宣称找到了稀土系列的分离法则：稀土中除了硫酸二乙酯和硝酸盐之外，其他所有盐都有相同的溶解度顺序。