Write the Principal and reaction involved in the assay of Boric Acid .
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weigh accurately about 2 gm of boric acid and dissolve in a mixture of 50 ml of water and 100 ml of glycerol previously neutralized to phenolphthalein solution. Titrate the contents of the flask with 1 N sodium hydroxide solution using phenolphthalein as indicator. Repeat the titration for concurrent values.
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