How is the aluminum content in aluminum isopropoxide determined?
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The sample is accurately weighed, dissolved in water and hydrochloric acid, and then diluted with water to a certain volume in milliliters. An exact amount of 25 ml is taken, to which 25.00 ml of EDTA titrant (0.05 mol/L) is added. The mixture is boiled for 3–5 minutes, allowed to cool, and then xylene orange indicator is added. Titration is carried out using zinc titrant (0.05010 mol/L) until the endpoint is reached, and the titration results are corrected using a blank test. It is known that 1 ml of EDTA titrant (0.05 mol/L) is equivalent to 2.549 mg of Al. . .
Reply to 2# ahhooyang: Thank you, teacher, for your explanation! I am very satisfied. I have another question: how is a 0.05 mol/L zinc titrant prepared? :handshake
Operating procedures for the preparation and calibration of zinc titrant _ Baidu Wenku http://wenku.baidu.com/view/c2a110697e21af45b307a8e2.html
Reply to 4# ahhooyang: Thank you, teacher, for your prompt reply.