This is a lab report on Aluminum Detection
Objective: To detect the presence of aluminum by testing both a deodorantMaterials and Methods/Procedures: A boiling water bath was prepared in a600 ml beaker, and four test tubes were cleaned, dried, and labeled with aChina marker. 0.25 g of Antiperspirant (Arid XX) was weighed with onesheet of clean weighing paper and placed in Tube #2, while 0.25 g ofDeodorant (Speed Stick) was weighed with another sheet of weighing paperand placed in Tube #3. Tube #1 (the Positive control tube) had a pinch ofaluminum salt placed in it, while nothing was placed in Tube #4. 4 ml of
The Antiperspirant was different because it had aluminum as anactive ingredient. The contents of each tube were mixed thoroughly with a stirring rod,and the four tubes were placed in the boiling water bath for 5 minutes. When the basic pH was reached, the tubes werecompared and the results noted. Results: The color change noted after the addition of Aluminum reagent waspeach in test tube #1, light-pink in test tube#2, pink in test tube #3 andpeach in test tube #4. The tubes were removed from the water, allowed to cool to room temperatureand then had 2 drops of Aluminum reagent added to each tube, and colorchanges noted. Each tube then had 6M ammonium hydroxide added until abasic pH was reached. illed water was added to each tube, followed by 1 ml of 6M hydrochloricacid. TheAntiperspirant did contain aluminum because it had the gelatinous cherry-red precipitate, while the Deodorant did not contain aluminum since it didnot have the gelatinous cherry-red precipitate. Test tubes #1 and #4 werenecessary to observe what the presence of aluminum looked like in theexperiment. After the 6M ammonium hydroxide was added, thecolor change was pink for test tube #1, light purple for test tube #2,light pink for test tube #3, and very light orange for test tube #4. Conclusion: The presence of aluminum in an Antiperspirant was noted byobserving the color changes in test tubes, and the presence of a cherry-redprecipitate. One of the test tubes without eitherAntiperspirant or Deodorant added illustrated what the presence of aluminumlooked like, while another test tube illustrated what the presence of noaluminum looked like. Discussion: There was a color change noted in each test tube after theaddition of 6M ammonium hydroxide.
Common topics in this essay:
Speed Stick,
Antiperspirant Deodorant,
Materials Methods/Procedures,
Arid XX,
test tube,
,
presence aluminum,
test tubes,
presence aluminum looked,
6m ammonium hydroxide,
pink test tube,
placed tube,
pink test,
aluminum looked,
6m ammonium,
color change,
tube #1,
tube #3,
illustrated presence aluminum,
test tube #1,
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