Silver nitrate chemical used as voting ink applied voters.forefinger lasts 72 hours

With the Indian election round the corners, lets have a look at the chemicals in voting ink

6:24 AM, 11th April 2014
Silver nitrate voting ink
The chemical used in voting inks is silver nitrate.

DELHI, INDIA: World’s largest democracy, India, is conducting its elections. All the citizens are equal and are allowed to vote. To avoid electoral fraud, like voting more than ones, election ink/ voting ink are used a semi-permanent ink or dye that is applied to the forefinger of voters. The ink remains for a minimum of 72 hours on the skin. The chemical used in voting inks is silver nitrate. Silver nitrate is preferred because it is soluble in water, and makes a inky black solution.

When put on the skin, silver nitrate reacts with the salt present on it to form silver chloride. Silver chloride is not soluble in water, and clings to the skin. It cannot be washed off with soap and water. It cannot be washed even with hot water, alcohol, nail polish remover, or bleach. The ink will disappear as the old skin cells die and get replaced by a new one.

 

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