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Published on: March 15, 2017
The stability of the certified reference ores MP-1 KC-1 and SU-1 towards air oxidation
1Chemistry Laboratory, Canada Centre for Mineral and Energy Technology, 555 Booth Street, Ottawa, Canada.
Abstract:
The stability of three certified reference sulphide ores, MP-1, KC-1 and SU-1, towards air oxidation has been measured at 50 degrees and 40, 62 and 82% relative humidity, and at 62% relative humidity and 34 degrees and 67 degrees . Both the relative humidity and temperature affect the rate of oxidation but their relative importance depends on the mineralogical composition of the ore. Changes in the water-extractable metals and elemental sulphur content on oxidation have been determined. It is concluded that these ores may be stored safely in sealed bottles under normal laboratory conditions.
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