Method of making a solid crystalline composition consisting esse

Details Method of making a solid crystalline composition consisting esse Method of making a solid crystalline composition consisting esse

1979-02-05

1981-02-17

Milestone, Norma S.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07D30762

Patent

active

042514495

ABSTRACT:
The invention is directed to a method of making crystalline calcium ascorbate by reacting ascorbic acid and calcium carbonate in liquid water medium, using some excess of carbonate, at a temperature of not more than about 70.degree. C., under controlled conditions so that the reaction mixture is maintained saturated with carbon dioxide gas and a carbon dioxide foam blanket is maintained over the reaction mixture during the reaction time, said water being present in the reactor in an amount which provides a reaction product solution having a syrupy viscosity, and spontaneously crystallizing out of said syrup a mass consisting essentially of calcium ascorbate, which calcium ascorbate is a source of Vitamin C activity.

REFERENCES:
patent: 2400171 (1946-05-01), Ruskin
patent: 2442005 (1948-05-01), Holland
patent: 2457141 (1948-12-01), Freeman
patent: 2495246 (1950-01-01), Fox et al.
patent: 2596103 (1952-05-01), Ruskin
patent: 2631155 (1953-03-01), Ruskin

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