@article {10.3844/ajessp.2010.45.49, article_type = {journal}, title = {Part I: Removing of Zn(II) from Polluted Water: Determination of Precipitation Limit Of Zn(II) Ion With 2-Hydroxy-1,2,3-Propanetricarboxylic Acid}, author = {Faiku, Fatmir and Faiku, Haxhere and Haziri, Arben and Govori, Sevdije and Ismaili, Murtezan and Maxhuni, Albert}, volume = {6}, number = {1}, year = {2010}, month = {Feb}, pages = {45-49}, doi = {10.3844/ajessp.2010.45.49}, url = {https://thescipub.com/abstract/ajessp.2010.45.49}, abstract = {Problem statement: The goal of this research was to investigate the condition for removing of Zn cation from water, through precipitation method with 2-hydroxy-1,2,3-propanetricarboxylic acid as ligand. Approach: In this study we examined the precipitation of Zn(II) ion in water solutions of ZnSO4 × 7H2O (1×10-2 and 5×10-3 mol L-1) with 2-hydroxy-1,2,3-propanetricarboxylic acid (1×10-1-1×10-3 mol L-1) in constant ionic strength of 0.6 mol L-1 NaCl. We have determined the concentration region at which Zn(II) start to precipitate. Results: From precipitation diagrams of zinc with 2-hydroxy-1,2,3-propanetricarboxylic acid, in ionic force 0.6 mol L-1 NaCl, we have found that during decreasing the concentration of 2-hydroxy-1,2,3-propanetricarboxylic acid, in case of constant concentration of Zn(II), the limit of precipitation is shifted to lower values of pH. The solid phase is analyzed by IR spectroscopy. Conclusion: From the IR spectroscopic analysis we can conclude that Zn(II) ion can precipitate with 2-hydroxy-1,2,3-propanetricarboxylic acid. }, journal = {American Journal of Environmental Sciences}, publisher = {Science Publications} }