Deliquescence Relative Humidity and Reversible Non-deliquescent Water Uptake in the Sodium Salts of Succinic Acid,ACS Earth and Space Chemistry

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Deliquescence Relative Humidity and Reversible Non-deliquescent Water Uptake in the Sodium Salts of Succinic Acid
ACS Earth and Space Chemistry ( IF 2.9 ) Pub Date : 2021-08-23 , DOI: 10.1021/acsearthspacechem.1c00168
Keith D. Beyer ₁

Affiliation

When metal ions from sea spray and other sources interact with dicarboxylic acids dissolved in atmospheric droplets, the results can be the precipitate of organic salts under dry atmospheric conditions. This study focused on the hygroscopic properties of the sodium salts of succinic acid (NaHC₄H₄O₄ and Na₂C₄H₄O₄). The salts reversibly take up water at relative humidities (RHs) lower than the deliquescence relative humidity (DRH) at 298 K. At higher RH values, a normal DRH is observed and temperature-dependent values were determined. The enhanced water content of otherwise dry particles may have an impact on heterogeneous chemistry on these particles as well as their optical properties.

中文翻译：

琥珀酸钠盐中潮解相对湿度和可逆非潮解吸水率

当来自海浪和其他来源的金属离子与溶解在大气液滴中的二羧酸相互作用时，结果可能是在干燥的大气条件下有机盐的沉淀。本研究的重点是琥珀酸钠盐（NaHC ₄ H ₄ O ₄和 Na ₂ C ₄ H ₄ O ₄）。在低于 298 K 时的潮解相对湿度 (DRH) 的相对湿度 (RH) 下，盐可逆地吸水。在较高的 RH 值下，观察到正常的 DRH，并确定了温度依赖性值。否则干燥颗粒的含水量增加可能会对这些颗粒的异质化学及其光学特性产生影响。

更新日期：2021-09-16

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