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The use of 85% phosphoric acid in borosilicate conical flasks for the dissolution of ilmenites at 230 ± 10°C is reported. The samples were quantitatively dissolved in less than 13 min. Titanium was determined by both spectrophotometry and inductively coupled plasma atomic emission spectrometry ICP-AES. Vanadium and iron were determined by ICP-AES. In several samples of ilmenites analyzed, the...