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
|
|
|
|
|
|
|
|
|
YES
|
| |
| |
| |
|
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
|
|
|
|
|
YES
|
|
|
|
YES
|
| |
| |
|
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
|
|
|
|
|
|
|
YES
|
|
|
| |
| |
| |
|
If there is a white precipitate and it's translucent there is an Aluminium Ion
|
| |
|
|
|
|
|
|
|
|
|
| |
| |
| |
| |
| |
|
|
|
|
|
|
|
|
|
| |
| |
| |
| |
| |
|
|
|
|
|
|
|
|
|
|
What Metal Ion is in This Solution?
