@article {10.3844/ajbbsp.2009.184.188, article_type = {journal}, title = {Determination of Precipitation Limit of Zn(II) Ion with (2S)-2-Aminobutanedioic Acid}, author = {Faiku, Fatmir and Faiku, Haxhere and Haziri, Arben and Gashi, Fatbardh and Troni, Naser and Govori, Sevdije and Maxhuni, Albert}, volume = {5}, number = {4}, year = {2009}, month = {Dec}, pages = {184-188}, doi = {10.3844/ajbbsp.2009.184.188}, url = {https://thescipub.com/abstract/ajbbsp.2009.184.188}, abstract = {Problem statement: 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 (2S)-2-aminobutanedioic acid (1.10--1.10-3 mol L-1) in constant ionic strength of 0.6 mol L-1 NaCl. We have determined the concentration region where we have found the clear solution and solid phase. The solid phase is analyzed by IR spectroscopy. Approach: From precipitation diagrams of zinc with (2S)-2-aminobutanedioic acid in ionic force 0.6 mol L-1 NaCl, we have found that during decreasing the concentration (2S)-2-aminobutanedioic acid in case of constant concentration of Zn(II) the limit of precipitation is shifted to lower values of pH. Results: Also from precipitation diagrams we can see that when the concentration of zinc increases, in case of constant concentration of (2S)-2-aminobutanedioic acid the limit of precipitation will shift at lower values of pH. Conclusion: From the IR spectroscopic analysis we can conclude that Zn (II) ion has reacted with (2S)-2-aminobutanedioic acid.}, journal = {American Journal of Biochemistry and Biotechnology}, publisher = {Science Publications} }