Home

Citation: Zhe Meng, Weiming Song, Xiaohu Ma, Yuan Li, Qiyun Luo. 多技术融合-创新设计沉淀重量法测定钡含量的实验[J]. University Chemistry, ;2022, 37(5): 211004. doi: 10.3866/PKU.DXHX202110049 shu

多技术融合-创新设计沉淀重量法测定钡含量的实验

National Demonstration Center for Experimental Chemistry Education (Ningxia University), College of Chemistry and Chemical Engineering, Ningxia University, Yinchuan 750021, China

Corresponding author: Zhe Meng, meng_z@nxu.edu.cn
Received Date: 15 October 2021

在现行沉淀重量法测定钡含量的实验基础上，本实验依据晶型沉淀生长的热力学理论，通过晶核形成过程的速率决定于形成和生长两个因素的动力学分析，针对沉淀制备过程中耗时长的陈化过程，创新性地引入微波技术，制备出形貌完整、粒径粗大（10 μm左右）的BaSO₄晶型沉淀。采用响应面法设计，优化微波输出功率300 W，微波陈化时间5 min，静置陈化时间15 min的连续二次微波陈化条件，总陈化时间仅需25 min。采用多种可视化微观表征技术将抽象的理论与基础的实验教学充分融合，有助于提升本科实验教学的前沿性和高阶性。在实验教学中（4学时），本实验的改进更加贴合现代化学实验教学的发展，为学生的科研和创新能力打下良好基础。
- Gravimetric method by precipitation,
- Microwave aging,
- Determination of barium content,
- Innovative design
1. [1]
2. [2]
3. [3]
4. [4]
5. [5]
6. [6]
7. [7]
  Gharibeh, M.; Tompsett, G. A.; Conner, W. C. Top. Catal. 2008, 49, 157.
8. [8]
  Reeja-Jayan, B.; Harrison, K. L.; Yang, K.; Wang, C. L.; Yilmaz, A. E.; Manthiram, A. Sci. Rep. 2012, 2, 1003.
1. [1]
  Xiaoyan Wang , Chao Wang , Dongmei Dai , Yanling Geng , Hongtao Gao . Design of Ideological and Political Education for the Experiment on Calcium Content Determination in Calcium Supplements. University Chemistry, 2024, 39(2): 162-167. doi: 10.3866/PKU.DXHX202307074
2. [2]
  Jiangjuan Shao , Xuan Li , Jingdan Weng , Xiaolei Chen , Fei Xu , Yulu Ma , Nianguang Li , Shizhong Zheng . Improvement in the Experimental Teaching Design of Physical and Chemical Identification and Quantification of Mineral Drugs. University Chemistry, 2024, 39(10): 137-142. doi: 10.3866/PKU.DXHX202312079
3. [3]
  Xuan Zhou , Yi Fan , Zhuoqi Jiang , Zhipeng Li , Guowen Yuan , Laiying Zhang , Xu Hou . Liquid Gating Mechanism and Basic Properties Characterization: a New Experimental Design for Interface and Surface Properties in the Chemistry “101 Plan”. University Chemistry, 2024, 39(10): 113-120. doi: 10.12461/PKU.DXHX202407111
4. [4]
  Li Jiang , Changzheng Chen , Yang Su , Hao Song , Yanmao Dong , Yan Yuan , Li Li . Electrochemical Synthesis of Polyaniline and Its Anticorrosive Application: Improvement and Innovative Design of the “Chemical Synthesis of Polyaniline” Experiment. University Chemistry, 2024, 39(3): 336-344. doi: 10.3866/PKU.DXHX202309002
5. [5]
  Tiejun Su . The Construction and Application of the Calculation Formula for Endpoint Error in Precipitation Titration: A Case Study of the Mohr Method. University Chemistry, 2024, 39(11): 384-387. doi: 10.12461/PKU.DXHX202402039
6. [6]
  Ruming Yuan , Pingping Wu , Laiying Zhang , Xiaoming Xu , Gang Fu . Patriotic Devotion, Upholding Integrity and Innovation, Wholeheartedly Nurturing the New: The Ideological and Political Design of the Experiment on Determining the Thermodynamic Functions of Chemical Reactions by Electromotive Force Method. University Chemistry, 2024, 39(4): 125-132. doi: 10.3866/PKU.DXHX202311057
7. [7]
  Mengyao Shi , Kangle Su , Qingming Lu , Bin Zhang , Xiaowen Xu . Determination of Potassium Content in Tobacco Stem Ash by Flame Atomic Absorption Spectroscopy. University Chemistry, 2024, 39(10): 255-260. doi: 10.12461/PKU.DXHX202404105
8. [8]
  Houzhen Xiao , Mingyu Wang , Yong Liu , Bangsheng Lao , Lingbin Lu , Minghuai Yu . Course Ideological and Political Design of Combustion Heat Measurement Experiment. University Chemistry, 2024, 39(2): 7-13. doi: 10.3866/PKU.DXHX202310011
9. [9]
  Liuxie Liu , Jing He , Jiali Du , Shuang Mao , Qianggen Li . Extension of Computational Chemical-Assisted Dipole Moment Measurement Experiment. University Chemistry, 2025, 40(3): 363-370. doi: 10.12461/PKU.DXHX202407108
10. [10]
  Feng Liang , Desheng Li , Yuting Jiang , Jiaxin Dong , Dongcheng Liu , Xingcan Shen . Method Exploration and Instrument Innovation for the Experiment of Colloid ζ Potential Measurement by Electrophoresis. University Chemistry, 2024, 39(5): 345-353. doi: 10.3866/PKU.DXHX202312009
11. [11]
  Kuaibing Wang , Honglin Zhang , Wenjie Lu , Weihua Zhang . Experimental Design and Practice for Recycling and Nickel Content Detection from Waste Nickel-Metal Hydride Batteries. University Chemistry, 2024, 39(11): 335-341. doi: 10.12461/PKU.DXHX202403084
12. [12]
  Shuyong Zhang , Yaxian Zhu , Wenqing Zhang , Yuzhi Wang , Jing Lu . Ideological and Political Design of Combustion Heat Measurement Experiment: Determination of Heat Value of Agricultural and Forestry Wastes. University Chemistry, 2024, 39(2): 1-6. doi: 10.3866/PKU.DXHX202303026
13. [13]
  Hui Shi , Shuangyan Huan , Yuzhi Wang . Ideological and Political Design of Potassium Permanganate Oxidation-Reduction Titration Experiment. University Chemistry, 2024, 39(2): 175-180. doi: 10.3866/PKU.DXHX202308042
14. [14]
  Wei Peng , Baoying Wen , Huamin Li , Yiru Wang , Jianfeng Li . Exploration and Practice on Raman Scattering Spectroscopy Experimental Teaching. University Chemistry, 2024, 39(8): 230-240. doi: 10.3866/PKU.DXHX202312062
15. [15]
  Qi Wang , Yicong Gao , Feng Lu , Quli Fan . Preparation and Performance Characterization of the Second Near-Infrared Phototheranostic Probe: A New Design and Teaching Practice of Polymer Chemistry Comprehensive Experiment. University Chemistry, 2024, 39(11): 342-349. doi: 10.12461/PKU.DXHX202404141
16. [16]
  Wenjun Yang , Qiaoling Tan , Wenjiao Xie , Xiaoyu Pan , Youyong Yuan . Construction and Characterization of Calcium Alginate Microparticle Drug Delivery System: A Novel Design and Teaching Practice in Polymer Experiments. University Chemistry, 2025, 40(3): 371-380. doi: 10.12461/PKU.DXHX202405150
17. [17]
  Chunai Dai , Yongsheng Han , Luting Yan , Zhen Li , Yingze Cao . Ideological and Political Design of Solid-liquid Contact Angle Measurement Experiment. University Chemistry, 2024, 39(2): 28-33. doi: 10.3866/PKU.DXHX202306065
18. [18]
  Kun Li , Na Gao , Shuangyan Huan , Yuzhi Wang . Design of Ideological and Political Education for the Experiment of Detecting Cadmium with Anodic Stripping Voltammetry. University Chemistry, 2024, 39(2): 155-161. doi: 10.3866/PKU.DXHX202307068
19. [19]
  Zhongbin Pan , Shijie Huang , Yunjie Luo , Hongzhen Xie . Design of a Comprehensive Experiment for Determining Permanganate Index (COD_Mn) in Drinking Water. University Chemistry, 2024, 39(7): 354-360. doi: 10.12461/PKU.DXHX202311040
20. [20]
  Yuena Yu , Fang Fang . Microwave-Assisted Synthesis of Safinamide Methanesulfonate. University Chemistry, 2024, 39(11): 210-216. doi: 10.3866/PKU.DXHX202401076

Get Citation

PDF

XML

Metrics

PDF Downloads(4)
Abstract views(957)
HTML views(167)

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Address：Zhongguancun North First Street 2,100190 Beijing, PR China Tel: +86-010-82449177-888

DownLoad: Full-Size Img PowerPoint

Return