{"title":"不同温度下氯化钠在混合溶剂介质中的溶解度及相关离子对形成的热力学研究","authors":"M. Aghaie, Roshanak Kishani","doi":"10.6000/1929-5030.2015.04.04.2","DOIUrl":null,"url":null,"abstract":"Using the evaporating method, the solubility of sodium chlorate was determined in the various mixed solvents (water + ethanol + propanol) at various temperatures. The results showed that the solubility of NaClO 3 decreases with increasing the mass percent of ethanol and propanol. On the other hand, the solubility of NaClO 3 increases with increasing the temperature .In addition, the equilibrium constant of ion pair formation, K IP, for the reaction Na + (aq) + ClO 3 - (aq) Na + ClO 3 - (Ion Pair) was estimated upon Fuoss contact ion pair model and then, the values of ion-pair concentrations were determined by using the extended Debye-HA¼ckel model and iteration calculations in various mixed solvents and various temperatures . Finally the value of thermodynamic solubility product constant, K sp(th) , and the values I”H ° , I” S ° and I” G ° of  and of ion-pair formation were estimated in the mixed solvent media.","PeriodicalId":15165,"journal":{"name":"Journal of Applied Solution Chemistry and Modeling","volume":"10 1","pages":"173-177"},"PeriodicalIF":0.0000,"publicationDate":"2015-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"Thermodynamic Investigation of NaClO3 Solubility in the Mixed Solvent Medium and the Related Ion – Pair Formation at Different Temperatures\",\"authors\":\"M. Aghaie, Roshanak Kishani\",\"doi\":\"10.6000/1929-5030.2015.04.04.2\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Using the evaporating method, the solubility of sodium chlorate was determined in the various mixed solvents (water + ethanol + propanol) at various temperatures. The results showed that the solubility of NaClO 3 decreases with increasing the mass percent of ethanol and propanol. On the other hand, the solubility of NaClO 3 increases with increasing the temperature .In addition, the equilibrium constant of ion pair formation, K IP, for the reaction Na + (aq) + ClO 3 - (aq) Na + ClO 3 - (Ion Pair) was estimated upon Fuoss contact ion pair model and then, the values of ion-pair concentrations were determined by using the extended Debye-HA¼ckel model and iteration calculations in various mixed solvents and various temperatures . Finally the value of thermodynamic solubility product constant, K sp(th) , and the values I”H ° , I” S ° and I” G ° of  and of ion-pair formation were estimated in the mixed solvent media.\",\"PeriodicalId\":15165,\"journal\":{\"name\":\"Journal of Applied Solution Chemistry and Modeling\",\"volume\":\"10 1\",\"pages\":\"173-177\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2015-12-18\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Applied Solution Chemistry and Modeling\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.6000/1929-5030.2015.04.04.2\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Applied Solution Chemistry and Modeling","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.6000/1929-5030.2015.04.04.2","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Thermodynamic Investigation of NaClO3 Solubility in the Mixed Solvent Medium and the Related Ion – Pair Formation at Different Temperatures
Using the evaporating method, the solubility of sodium chlorate was determined in the various mixed solvents (water + ethanol + propanol) at various temperatures. The results showed that the solubility of NaClO 3 decreases with increasing the mass percent of ethanol and propanol. On the other hand, the solubility of NaClO 3 increases with increasing the temperature .In addition, the equilibrium constant of ion pair formation, K IP, for the reaction Na + (aq) + ClO 3 - (aq) Na + ClO 3 - (Ion Pair) was estimated upon Fuoss contact ion pair model and then, the values of ion-pair concentrations were determined by using the extended Debye-HA¼ckel model and iteration calculations in various mixed solvents and various temperatures . Finally the value of thermodynamic solubility product constant, K sp(th) , and the values I”H ° , I” S ° and I” G ° of  and of ion-pair formation were estimated in the mixed solvent media.
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