Answer to Question #50419 in Chemistry for TONE

Question #50419

DEAR SIR
IN DETERMINATION H2S IN CRUDE OIL WITH BORAX EXTRACTION THEN TITRATION WITH IODINE AND BACK TITRATE THIOSULPHATE,WHY I CHOOSE BORAX?WHY WE DONT CHOOSE ANOTHER BASE FOR EXAMPLE KOH OR NaOH?
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