Spectrophotometric and Potentiometric Analysis of Calcichrome and Its Complex With Calcium Ion
Calcichrome
Stoichiometry
Mole ration method
Continuous Variation method
Selective reagent .
It was confirmed in this research that the ligand calcichrome formed stable complex with calcium ion at pH of 8.5 which verified by UV/Vis and FTIR spectral analysis and the complexation occurred via hydroxyl groups .
The stoichiometric ratio of the formed complex was found to be 1:1 by mole ratio and continuous variation methods . Dry ashing method of the complex and flame emission photometric analysis offered a calcium percentage in calcium complex equal 4.5% with an error of 2.41% due to experimental errors .
