REU and ROA: Ionic Interactions in Seawater

米勒罗博士建议继续研究离子相互作用如何影响海水和其他自然水域的化学过程。在接下来的两年里，他将研究海水的主要成分如何影响金属和非金属的氧化速率。将测量海水中的氧化速率，作为pH值、盐度和温度的函数。在恒定离子强度下的混合离子溶液（Na-Mg-Ci, Na-Cl-SO4， NaC1-NaC104等）中进行动力学测量，以阐明离子相互作用。对氧化产物和中间体的研究将试图阐明反应的机理。在接下来的两年里，他还计划继续测量海水和主要海盐中Fe(II), Cu(I)和H2S与H2O2的氧化。新的测量将开始对H2SO3氧化与H2O2。H2So3在NaC1， NaMgC1和KC1中电离的热力学pK1和pK2测量将作为温度（0至50℃）和离子强度（0至6m）的函数完成。这些测量将用于检验pH值对H2SO3氧化的影响。他将参加在黑海的实地研究（1988年），将对这些水域中H2S的氧化进行直接测量，以将实地测量结果与实验室结果进行比较。由于Fe（II）和Mn （II）的耦合氧化和微生物的催化作用，预计会出现差异。将使用金属饱和HS溶液进行实验室测量，以检查天然水中可能发生的催化效应。各种参数对中间产物SO32-形成的影响也将被考察。

Dr. Millero proposes to continue his study of how ionic interactions affect chemical processes in seawater and other natural waters. In the next two years he will examine how the major components of seawater affect the rates of oxidation of metals and nonmetals. Measurements of the rates of oxidation will be made in seawater as a function of pH, salinity and temperature. Kinetic measurents will also be made in mixed ionic solutions (Na-Mg-Ci, Na-Cl-SO4, NaC1-NaC104, etc.) at a constant ionic strength to elucidate the ionic interactions. Studies of the products and intermediates of the oxidation will be made in an attempt to elucidate the mechanisms of the reaction. During the next two years he also plans to continue measurements on the oxidation of Fe(II), Cu(I) and H2S with H2O2 in seawater and the major sea salts. New measurements will be initiated on the oxidation of H2SO3 with H2O2. Thermodynamic pK1 and pK2 measurements for the ionization of H2So3 in NaC1, NaMgC1, and KC1 will be completed as a function of temperature (0 to 50degrees C) and ionic strength (0 to 6m). These measurements will be used to examine the effect of pH on the oxidation of H2SO3. He will participate in field studies in the Black Sea (1988), direct measurements will be made on the oxidation of H2S in these waters to compare field measurements with laboratory results. Differences are expected due to the coupled oxidations of Fe(II) and Mn (II) and catalytic effects of micro-organisms. Laboratory measurements using metal saturated HS- solutions will be made to examine the catalytic effects that may occur in natural waters. The effect various parameters have on the formation of intermediates SO32- will also be examined.