UOP Standard Withdrawn, Replaced   Last Updated: Jul 29, 2002 Track Document
ASTM UOP887-89

Rhenium in Perrhenic Acid and Ammonium Perrhenate by Spectrophotometry

Rhenium in Perrhenic Acid and Ammonium Perrhenate by Spectrophotometry UOP887-89 UOP|UOP887-89|en-US Rhenium in Perrhenic Acid and Ammonium Perrhenate by Spectrophotometry Standard new
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Universal Oil Products

This method is for determining rhenium in relatively pure perrhenic acid and ammonium perrhenate over a concentration range from 40 to 70 mass-%. Molybdenum is an interference when it is present at concentrations higher than 10% of the rhenium content. Molybdenum can be determined by UOP Method 833. Other elements that produce colored ions in the dissolution or color-development step constitute a positive interference.

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