盐的溶解度与温度

六种盐在 0–100 °C 每 100 g 水中的溶解度,以及无限稀释时的溶解焓。溶解焓为正的盐,升温时溶解度增大。

6 行
硝酸钾KNOX3\ce{KNO3}13.30031.60063.900110.000169.000246.00034.89
硝酸钠NaNOX3\ce{NaNO3}73.00087.300104.100123.700147.500176.20020.50
氯化铵NHX4Cl\ce{NH4Cl}29.40037.20045.80055.20065.60077.30014.78
氯化钾KCl\ce{KCl}27.60034.00040.00045.50051.10056.70017.22
氯化钠NaCl\ce{NaCl}35.70036.00036.60037.30038.40039.8003.88
氢氧化钙Ca(OH)X2\ce{Ca(OH)2}0.1890.1730.1530.1280.0990.066−16.70

Ca(OH)₂ 只有 0、20、100 °C 的实测值,40–80 °C 为单调插值。CRC 的现代数据与经典数据相差约 2 % 以内。

数据来源

  1. W. M. Haynes (ed.), CRC Handbook of Chemistry and Physics, 97th ed. (2016): aqueous solubility of inorganic compounds at various temperatures; enthalpy of solution of electrolytes (V. B. Parker, NSRDS-NBS 2, 1965).
  2. A. Seidell, Solubilities of Inorganic and Organic Compounds, 2nd ed. (1919) — the classic series reprinted in the 人教版 grade-9 chemistry textbook.

在这些课程中使用