The enthalpies of mixing of ternary liquid Ag-Ca-Ge alloys

IF 0.4 Q4 CHEMISTRY, ANALYTICAL French-Ukrainian Journal of Chemistry Pub Date : 2021-07-01 DOI:10.17721/fujcv9i1p51-62
N. Kotova, M. Ivanov, Natalia Usenko
{"title":"The enthalpies of mixing of ternary liquid Ag-Ca-Ge alloys","authors":"N. Kotova, M. Ivanov, Natalia Usenko","doi":"10.17721/fujcv9i1p51-62","DOIUrl":null,"url":null,"abstract":"Partial and integral enthalpies of mixing of the ternary Ag–Ca–Ge melts were determined for the first time by the high-temperature isoperibolic calorimetry at 1300–1550 K. The experiments were performed for six sections with a constant ratio of two components up to the molar fraction of the third component equal to 0.3. The enthalpies of mixing in this ternary system are exothermic values which increase in absolute value from the Ag corner of the concentration triangle towards the constituent binary Ca–Ge system. The minimum value of the integral enthalpy of mixing was obtained for Ca0.6Ge0.4 composition of the Ca–Ge binary system (about –58.00 kJ mol–1). The enthalpies of mixing of the ternary Ag–Ca–Ge melts are calculated for the whole concentration triangle by the Redlich-Kister-Muggianu method, taking into account the term of specific ternary interaction defined from our experimental data. The topology of the isoenthalpies of mixing is determined.","PeriodicalId":42056,"journal":{"name":"French-Ukrainian Journal of Chemistry","volume":null,"pages":null},"PeriodicalIF":0.4000,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"French-Ukrainian Journal of Chemistry","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.17721/fujcv9i1p51-62","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"CHEMISTRY, ANALYTICAL","Score":null,"Total":0}
引用次数: 2

Abstract

Partial and integral enthalpies of mixing of the ternary Ag–Ca–Ge melts were determined for the first time by the high-temperature isoperibolic calorimetry at 1300–1550 K. The experiments were performed for six sections with a constant ratio of two components up to the molar fraction of the third component equal to 0.3. The enthalpies of mixing in this ternary system are exothermic values which increase in absolute value from the Ag corner of the concentration triangle towards the constituent binary Ca–Ge system. The minimum value of the integral enthalpy of mixing was obtained for Ca0.6Ge0.4 composition of the Ca–Ge binary system (about –58.00 kJ mol–1). The enthalpies of mixing of the ternary Ag–Ca–Ge melts are calculated for the whole concentration triangle by the Redlich-Kister-Muggianu method, taking into account the term of specific ternary interaction defined from our experimental data. The topology of the isoenthalpies of mixing is determined.
查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
三元液态Ag-Ca-Ge合金的混合焓
首次用高温等循环量热法在1300 ~ 1550 K范围内测定了Ag-Ca-Ge三元熔体的部分和积分混合焓。实验在两种组分的恒定比下进行,直到第三种组分的摩尔分数等于0.3。该三元体系的混合焓为放热值,其绝对值从浓度三角形的Ag角向二元Ca-Ge体系增加。在Ca-Ge二元体系中,Ca0.6Ge0.4组分的混合积分焓最小(约为-58.00 kJ mol-1)。考虑由实验数据定义的三元特定相互作用项,用Redlich-Kister-Muggianu方法计算了整个浓度三角形的Ag-Ca-Ge三元熔体的混合焓。确定了混合等焓的拓扑结构。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 去求助
来源期刊
French-Ukrainian Journal of Chemistry
French-Ukrainian Journal of Chemistry CHEMISTRY, ANALYTICAL-
自引率
0.00%
发文量
13
审稿时长
4 weeks
期刊最新文献
Isoflavonoids Modified with Azole Heterocycles with Three Heteroatoms Complexation of 1,3-dihetaryl-5-phenyl-2-pyrazoline Derivatives with Polyvalent Metal Ions: Quantum Chemical Modeling and Experimental Investigation Development and Validation of a Simple Procedure for the Kinetic Spectrophotometric Quantitative Determination of Ceftriaxone Using Potassium Caroate Removal of Phosphates in Aqueous Solution by Adsorption on Calcium Oxide Two New Pentacyclic Triterpenoids, an Alkaloid and a Long-chain Fatty Acid from Albizia Coriaria (Welw ex. Oliver)
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1