Reactions of Semicarbazide with Cyclohexanone and 2-Furaldehyde in Phosphate Buffer Solution

C Reactions of Semicarbazide with Cyclohexanone and 2-Furaldehyde in Phosphate Buffer Solution 

Dissolve 3.0 g of semicarbazide hydrochloride and 6.0 g of dibasic potassium phosphate in 75 mL of water. Because this is an aqueous solution, it is referred to as solution 1/1/ Prepare a solution of 3.0 mL of cyclohexanone and 2.5 mL of 2-furaldehyde in 15 mL of 95% ethanol. Because this is an ethanolic solution, it is referred to as 

Cool a 25-mL portion of solution W and a 5-mL portion of solution E separately in an ice-water bath to 0-2 °C. Add solution E to solution W and swirl the mixture crystals should form almost immediately. Place the mixture in an ice-water bath for 3-5 min then collect the crystals by vacuum filtration and wash them on the filter with 2-3 mL of cold water. Thoroughly a r-dry the crystals and determine their weight and melting point. 

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