Gravimetric Determination of Molybdenum(VI) Employing N-Hydroxy-N-p-Chlorophenyl-N' -(2-Methyl-4-Chlorophenyl) Benzamidine Hydrochloride
نویسندگان
چکیده
The use of N-hydroxy-N-p-chlorophenyl-N'-(2-methyl-4-chlorophenyl)benzamidine hydrochloride abbreviated as HCPMCPBH as a highly selective chelating agent for molybdenum has been investigated. The dioxomolybdenum complex Mo02(C20H1 5N20Ch)2 is quantitatively precipitated at pH = 2.8-6.6. As the complex can not be washed free of excess reagent, the dried complex is ignited at 500-550 °c to Mo03 for final determination. Most of the usual ions do not interfere. The method has also been applied for the determination of molybdenum in ferro-molybdenum and molybdenum ores.
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