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Explain the principle of EDTA method.
written 7.9 years ago by | • modified 7.9 years ago |
Mumbai University > First Year Engineering > Sem1 > Applied Chemistry 1
Marks: 3M
Year: Dec 2014
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written 7.9 years ago by | • modified 7.9 years ago |
Mumbai University > First Year Engineering > Sem1 > Applied Chemistry 1
Marks: 3M
Year: Dec 2014
written 7.9 years ago by |
EDTA stands for Ethylene Diamine Tetra Acetic acid. As it is insoluble in water, we use its disodium salt.
Structure of EDTA:
By nature, Eriochrome Black T indicator is blue in colour. When EBT indicator is added to water sample, it forms a wine red coloured unstable Ca-Mg-EBT complex.
This …