Aluminum is found in tap water we drink.
Heavy metals can be important for our health, but in excess they are detrimental.
Aluminum is a neurotoxin, which means that it removes the natural barriers protecting the brain. Aluminum poisoning has been linked to Alzheimer's disease, loss of concentration, forgetfulness and kidney damage. Some people who reduce their exposure to aluminum have noticed less irritability, less headaches, a better memory, and a return of intellectual capabilities.
We are absorbing aluminum through our skin when we use antiperspirants or through our mouth when we use aluminum bake wares, bottles made of aluminum, and so on. Maybe one of the most important facts is that managers add aluminum to clean the drinking water while it goes through treatment plants. If we drink aluminum from the kitchen spigot, keep track of how much we get. The question is: How do we test aluminum in water?
Instructions
1. Rinse the test tube with sample water a few times in order to remove any impurities.
2. Fill the test tube to the 5 ml line with sample water.
3. Add the potassium hydroxide solution liquid drop-by-drop until the color changes. Match color of the sample with the color of the pH chart. Drop the chemical reagent until the pH marks 13, or purple-violet. If any precipitate forms, filter it off.
4. Take a test strip. Immerse the trip in the solution briefly. Tap off excess liquid.
5. Put a drop of Eriochrome Cyanine R (buffer or neutralizer) on the strip. Let it react for 1 minute.
6. Compare the color on the strip with the color scale.
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