采用少溶剂固相反应制备3PbO·PbSO4·H2O的实验研究

IF 3.5 2区 教育学 Q1 EDUCATION, SCIENTIFIC DISCIPLINES Education for Chemical Engineers Pub Date : 2023-04-01 DOI:10.1016/j.ece.2023.02.003
Helin Wang , Can Liu , Helong Jiang , Zhiliang Guo , Yingping Zheng , Qi Qi , Lixu Lei
{"title":"采用少溶剂固相反应制备3PbO·PbSO4·H2O的实验研究","authors":"Helin Wang ,&nbsp;Can Liu ,&nbsp;Helong Jiang ,&nbsp;Zhiliang Guo ,&nbsp;Yingping Zheng ,&nbsp;Qi Qi ,&nbsp;Lixu Lei","doi":"10.1016/j.ece.2023.02.003","DOIUrl":null,"url":null,"abstract":"<div><p>Less solvent solid state reactions are reactions of solids with help of a little amount of solvent in ordinary stirring reactors. Due to the limited amount of solvent, only part of the substances can dissolve in the solvent, and the solvent can be regarded as a transport agent that makes the reactants contact easily. Here, we present an experiment about less solvent solid state reaction that enables students to use β-PbO and PbSO<sub>4</sub> to produce 3PbO·PbSO<sub>4</sub>·H<sub>2</sub>O (tribasic lead sulfate, usually short as 3BS) in 2 h with its reaction monitored and product characterized with X-ray diffraction. By combining their experiment data with the thermodynamic analysis in the pre-lab lecture, students can understand why solution reactions reach equilibriums eventually while solid state reactions reach 100% completion, and how to get rid of the diffusion difficulty of solid state reactions. Meanwhile, exposure to this experiment can stimulate students to explore techniques for greener chemical processes other than solution reactions.</p></div>","PeriodicalId":48509,"journal":{"name":"Education for Chemical Engineers","volume":"43 ","pages":"Pages 92-99"},"PeriodicalIF":3.5000,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"A laboratory experiment on preparation of 3PbO·PbSO4·H2O using less solvent solid state reaction for undergraduate students\",\"authors\":\"Helin Wang ,&nbsp;Can Liu ,&nbsp;Helong Jiang ,&nbsp;Zhiliang Guo ,&nbsp;Yingping Zheng ,&nbsp;Qi Qi ,&nbsp;Lixu Lei\",\"doi\":\"10.1016/j.ece.2023.02.003\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Less solvent solid state reactions are reactions of solids with help of a little amount of solvent in ordinary stirring reactors. Due to the limited amount of solvent, only part of the substances can dissolve in the solvent, and the solvent can be regarded as a transport agent that makes the reactants contact easily. Here, we present an experiment about less solvent solid state reaction that enables students to use β-PbO and PbSO<sub>4</sub> to produce 3PbO·PbSO<sub>4</sub>·H<sub>2</sub>O (tribasic lead sulfate, usually short as 3BS) in 2 h with its reaction monitored and product characterized with X-ray diffraction. By combining their experiment data with the thermodynamic analysis in the pre-lab lecture, students can understand why solution reactions reach equilibriums eventually while solid state reactions reach 100% completion, and how to get rid of the diffusion difficulty of solid state reactions. Meanwhile, exposure to this experiment can stimulate students to explore techniques for greener chemical processes other than solution reactions.</p></div>\",\"PeriodicalId\":48509,\"journal\":{\"name\":\"Education for Chemical Engineers\",\"volume\":\"43 \",\"pages\":\"Pages 92-99\"},\"PeriodicalIF\":3.5000,\"publicationDate\":\"2023-04-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Education for Chemical Engineers\",\"FirstCategoryId\":\"95\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S1749772823000118\",\"RegionNum\":2,\"RegionCategory\":\"教育学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"EDUCATION, SCIENTIFIC DISCIPLINES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Education for Chemical Engineers","FirstCategoryId":"95","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1749772823000118","RegionNum":2,"RegionCategory":"教育学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"EDUCATION, SCIENTIFIC DISCIPLINES","Score":null,"Total":0}
引用次数: 1

摘要

少溶剂固相反应是固体在少量溶剂的作用下在普通搅拌反应器中发生的反应。由于溶剂的量有限,只有一部分物质能溶解在溶剂中,溶剂可以看作是一种运输剂,使反应物容易接触。本实验采用无溶剂固相反应,利用β-PbO和PbSO4在2 h内生成3PbO·PbSO4·H2O(三碱式硫酸铅,通常简称为3BS),并对反应过程进行了监测和x射线衍射表征。通过实验数据与实验前课的热力学分析相结合,学生可以理解为什么溶液反应最终达到平衡,而固相反应达到100%完成,以及如何摆脱固相反应的扩散困难。同时,接触这个实验可以激发学生探索除溶液反应之外的更环保的化学过程技术。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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
A laboratory experiment on preparation of 3PbO·PbSO4·H2O using less solvent solid state reaction for undergraduate students

Less solvent solid state reactions are reactions of solids with help of a little amount of solvent in ordinary stirring reactors. Due to the limited amount of solvent, only part of the substances can dissolve in the solvent, and the solvent can be regarded as a transport agent that makes the reactants contact easily. Here, we present an experiment about less solvent solid state reaction that enables students to use β-PbO and PbSO4 to produce 3PbO·PbSO4·H2O (tribasic lead sulfate, usually short as 3BS) in 2 h with its reaction monitored and product characterized with X-ray diffraction. By combining their experiment data with the thermodynamic analysis in the pre-lab lecture, students can understand why solution reactions reach equilibriums eventually while solid state reactions reach 100% completion, and how to get rid of the diffusion difficulty of solid state reactions. Meanwhile, exposure to this experiment can stimulate students to explore techniques for greener chemical processes other than solution reactions.

求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
CiteScore
8.80
自引率
17.90%
发文量
30
审稿时长
31 days
期刊介绍: Education for Chemical Engineers was launched in 2006 with a remit to publisheducation research papers, resource reviews and teaching and learning notes. ECE is targeted at chemical engineering academics and educators, discussing the ongoingchanges and development in chemical engineering education. This international title publishes papers from around the world, creating a global network of chemical engineering academics. Papers demonstrating how educational research results can be applied to chemical engineering education are particularly welcome, as are the accounts of research work that brings new perspectives to established principles, highlighting unsolved problems or indicating direction for future research relevant to chemical engineering education. Core topic areas: -Assessment- Accreditation- Curriculum development and transformation- Design- Diversity- Distance education-- E-learning Entrepreneurship programs- Industry-academic linkages- Benchmarking- Lifelong learning- Multidisciplinary programs- Outreach from kindergarten to high school programs- Student recruitment and retention and transition programs- New technology- Problem-based learning- Social responsibility and professionalism- Teamwork- Web-based learning
期刊最新文献
Hands-on fluidized bed classroom implementation and assessment Critique on STEM activities for heat transfer learning STEM activities for heat transfer learning: Integrating simulation, mathematical modeling, and experimental validation in transport phenomena education Critique: YEASTsim - A Matlab-based simulator for teaching process control in fed-batch yeast fermentations Critique – Tools for sharing
×
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