write the note on borate flame test
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Boron Testing Methods
When determining the percentage of B2O3 in sodium borate and boric acid product samples, with high concentrations of boron, the most accurate method is titration.
Titration is also a quicker way to determine B2O3 content....
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When borax is heated with ethanol and conc. H2SO4, vapours of triethyl borate are produced that burn with a green edged flame. This green edged flame test for testing BO33− radical is written as follows: Na2B4O7+H2SO4+5H2O→Na2SO4+4H3BO3.
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