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▷ ▶ What Metal Ion is in This Solution? free Education flowcharts and decision trees.
A Flowchart by mandalynne12. See mandalynne12's 4me blog page.
Viewed 616 times. Created October 2013.
This Education flowchart, a free online decision tool is a creation of mandalynne12 and for amusement purposes only. The implicit and explicit opinions expressed here are the author's. does not necessarily agree.
EducationWhat Metal Ion is in This Solution?
By mandalynne12
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Flowchart of determining whether certain metal ions are located in certain solutions after being introduced to stressors

Step 1: -1.5 mL solution (3" test tubes) -2 drops Ammonium Chloride -Add 6M Ammonia Solution until basic -test with pH strip
Step 2: -2 drops 15M Ammonia -6 drops of Thioaetoamide solution -heat for 5 minutes in H2O bath
Step 3: -Centrifuge to seperate -Decant liquid -Wash precipitate 2x with H2O -Discard wasted H2O
Step 4: -12 drops H2O -2 drops 12M HCl -stir for a minute -centrifuge -immediately decant (save waste for step 6)
Step 5: -wash Step 4 precipitate with H2O -Discard wasted H2O -5 drops 6M HCl - 1 drop 6M Nitric Acid - Heat until precipitate dissolves -15M ammonia until solution is basic -Centrifuge -Discard precipitate -1 drop 15M Ammonia -3 drops Dimenthylglyoxime

Step 6: -10% Sodium Hydroxide -6 drops of Sodium Hydroxide -8-10 drops 3% Hydrogen Peroxide -Sir while adding Hydrogen Peroxide -Heat in boiling H2O until gas stops -Centrifuge
If there is a red precipitate, proves Nickel (II) Iron is in solution.

Step 8: -5 drops 6M HCl -Heat until dissolved -Cool down -i drop Potassium Hexacyanoterrate (II)
Step 7: -Decant and save the wash -Wash precipitate with hot H2O x2 -Discard H2O washings -spllit in half
Step 9: -5 drops 6M Nitric Acid -5 drops H2O -pinch of Sodium Bicarbonate -Stir -Centrifuge


If there is a deep blue precipitate (Prussian Blue) there is Iron (III) Ion
Step 10: -reduce colue to 2 mL by heating -Cool and return to test tube -6M Nitric Acid till soltuion is barely acidic - 15M Ammonia till basic -6 drops 15M Ammonia solution -Heat in boiling H2O for 1 minute
If there is a purple color, means there is a permanganate ion, which indidcates Manganese (II) ion


If there is a white precipitate and it's translucent there is an Aluminium Ion