The solution was allowed to stand undisturbed for 30 minutes at room temperature.Īfter the time period, the flask was cooled in an ice-water bath and 3 M HCl was added dropwise with swirling. It was added in three to four portions over a period of 3 minutes.
95 mmol of NaBH4 was added while the solution was constantly swirled. The flask was swirled in an ice-water bath for 1-2 minutes and the solution was cooled to approximately 10☌. The flask was swirled to produce a homogeneous yellow solution. 5 mL of 1 M NaOH solution in a 25 mL Erlenmeyer flask. Procedure: Preparation of Vanillyl Alcohol 2. Other chemical processes included in the lab were recrystallization, melting point, and extraction. The chemical process studied in this lab was reduction, the process of reducing the number of bonds to oxygen and increasing the number of bonds to hydrogen. This lab report recaps the procedure and results of the lab. John Heger CMY 211 Lab Section 13 11-30-2011 Borohydride Reduction of Vanillin to Vanillyl Alcohol Introduction: The purpose of this lab was to reduce vanillin to vanillyl alcohol.
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