本文在大量统计分析的基础上提出了一个计算铝酸钠溶液比重的经验公式。该公式不但能直接反映溶液的比重,且浓度和温度的适用范围很广。此外,不难根据实际情况对公式加以简化。 Based on a large number of statistical analysis, this paper presents an empirical formula for calculating the specific gravity of sodium aluminate solution. The formula not only directly reflects the proportion of the solution, and the concentration and temperature of a wide range of applications. In addition, it is not difficult to simplify the formula according to the actual situation.