Sodium Hydroxide → HCID 131710647, compound

Participants

Reaction Conditions

Reaction Steps

A cylindrical vessel (diameter 12 cm., height 19 cm. with a stirrer, provided with a cylindrically-shaped stainless steel net as cathode surrounded at a distance of 7 mm. by an anode of sintered nickel plate (surface area 0.05 m.2), is filled with 1500 ml. of an aqueous solution of 130 g. (0.5 mole) of diacetone-sorbose and 60 g. (1.5 mole) of sodium hydroxide. At a temperature of 40° C. and a terminal voltage of 2.4 V, it is electrolyzed until 80 Ah have flowed through the reaction mixture. Thereafter, the reaction mixture is cooled to 0° C., mixed with 140 -145 ml. of 32% hydrochloric acid and the resulting precipitate is filtered with suction. After washing with 200 ml. of ice water and drying at room temperature, 124 g. of diacetone-ketogulonic acid, corresponding to a yield of 84.8%, is obtained.

Provenance & Evidence