Quantification of anion and cation uptake in ice Ih crystals.

Autor: Sivells T; Department of Chemistry and Biochemistry, Baylor University, Waco, Texas 76706, USA., Viswanathan P; Department of Chemistry and Biochemistry, Baylor University, Waco, Texas 76706, USA., Cyran JD; Department of Chemistry and Biochemistry, Baylor University, Waco, Texas 76706, USA.
Jazyk: angličtina
Zdroj: The Journal of chemical physics [J Chem Phys] 2023 Apr 07; Vol. 158 (13), pp. 134507.
DOI: 10.1063/5.0141057
Abstrakt: While ice has very low solubility for salts compared to water, small amounts of ions are doped into ice crystals. These small ion dopants can alter the fundamental physical and chemical properties of ice, such as its structure and electrical conductivity. Therefore, these results could have a direct impact on the chemical reactivity of ice and ice surfaces. Here, we examine the influence of the uptake of three salts-ammonium chloride (NH 4 Cl), sodium chloride (NaCl), and ammonium sulfate [(NH 4 ) 2 SO 4 ]-on ice Ih formation using capillary electrophoresis. Using both cation and anion modes, we observed and quantified the uptake of individual ions into the ice. Our results indicate that anions have a higher propensity for uptake into ice Ih crystals.
Databáze: MEDLINE