Specifies a conventional gravimetric method for the determination. A test portion ist reated with quinoline in a beaker at 70 to 80 °C for 15 to 20 min. Then the dissolved test portion and the residue are brought to a Hartley funnel fitted with a filter pad, and are filtered. The washed and dried residue on the filter pad is weighed.
Status : PublishedPublication date : 1981-11
Edition : 1Number of pages : 3
Technical Committee:Materials for the production of primary aluminium
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