Kabita Sharma 
HSAB principle (i.e Hard and Soft Acids and Bases principle) was introduced by Ralph Pearson to explain the stability of metal complexes and the process of their reactions. R. G. Pearson extended and modified the qualitative relationship between Lewis acids … Read more
EDTA (Ethylene Diamine Tetraacetic Acid) is an organic reagent that is frequently used in the complexometric titration. It is a chelating ligand with two nitrogen and four carboxylic acids that coordinates with metal ions. Structure of EDTA EDTA is made … Read more
Ozone is a condensed form of oxygen with the molecular formula O3. German chemist C.F. Schonbein (1799–1868) was the first to recognize ozone in 1840, he recognized that the smell produced while sparking was caused by an unidentified substance that … Read more
Metal ion indicators are the organic compounds used in the complexometric titration. Different types of metal indicators are used for the different metal ions. These indicators are usually used to detect the endpoint of EDTA titration. The indicator changes its … Read more
Complexometric titration also referred to as Chelatometry, is a volumetric analytical technique in which the titration’s endpoint is established using a colored complex. This is the titration between the metal ion and the complexing agent when an appropriate indicator is present. The … Read more
Redox indicator is an organic compound that exhibit a change in color in both the reduced and oxidized states, or at various potential values. Depending on oxidation and reduction potential, these organic molecules undergo structural change during redox titration. In oxidation … Read more
Acid rain is the most serious environmental concern caused by air pollution. Lakes, streams, plants, and animals that inhabit these ecosystems suffer severe danger from acid rain. Rain that has a pH value of less than 5.6 and a concentration of H+ ions … Read more
Fajan’s rules can be used to determine the tendency of ionic compounds to acquire covalent character as a result of polarization. K. Fajan studied the factors which introduced the covalent character in the ionic compounds and purposed a set of … Read more
Redox reactions involve a change in oxidation number or transfer of electrons. The standard solution is either oxidizing or reducing agent. The oxidation-reduction reaction that takes place between the analyte and the titrant is the basis for redox titration. It … Read more