Research on the Determination of Total Hardness in Drinking Water by Microscale Chemistry Experiment

Abstract:

Total hardness is an important index to evaluate drinking water quality. Total hardness in drinking water was determined by micro titration and conventional titration seperately and parallel determination results of microscale chemical laboratory and constants experiment were compared. The results of micro titration were accurate and reliable. Microscale laboratory has such characteristics as obvious phenomena, saving reagents, fast analysis. So the cost was reduced and the innovative ability of students was improved by full compliance with the concept of green chemistry. Microscale laboratory is worth promoting.

• Periodical: Applied Mechanics and Materials (Volumes 157-158)
• Pages: 784-787
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.157-158.784
• Online since: February 2012
• Authors: Yu Guo Zhuo, Jun Liu, Jia Min Gao, Yu Liu, Zhen Zhen Kang
• Keywords: Drinking Water, Micro Titration, Total Hardness

References

[1] Xianglan Li, Study on the factors affecting the determination of total hardness in water. China Modern Educational Equipment. 91 (2010) 111-112.

[2] Yangxi Peng, Study on the end point error of determination of water hardness by using complexometric titration. Journal of Analytical Science. 20 (2004) 221-222.

[3] Jun Wang, Pengyang Xia, Examining the water hardness by subminiature titration method. Journal of Xianning University. 30 (2010) 85-87.

[4] Baojie Yu, Baohui Yu, Fengmei Chen, An improvement of the testing method for determining the hardness of water. Journal of Changchun University of Technology. 25 (2004) 28-29.

[5] Zhengxin Ge, An inqiury into the coordination titration experiment teaching of the ditermination of water hardness. Journal of Xinjiang Education Institute. 20 (2004) 122-124.