Discussion - Discussion In the ore sample Co was the only...

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Discussion In the ore sample Co was the only cation found present. This can be noted in the Ore Sample flow chart. It was expected to have Al and Fe as well. However, Fe was not present when the Cinchonine test was applied, and Al was not present after the Alizarin S test. In the Ore Sample flow chart, one assumption was made about Ba+. It was assumed that the reason why a tiny bit of precipitate of Ba+ formed was because the ore sample came from nature, and thus a bit of Ba+ was mixed in. Confidence in the answer is lower because of some problems encountered during the lab. After centrifugation the precipitate at the bottom often needed to be washed by adding water, and then vigorously shook to break up the solid. After the solid was broken up, it should have been centrifuged again, and then the precipitate should have been separated from the wash liquid. However, in this lab the centrifuge was never washed, and therefore could have skewed the data.
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