Process for forming calcium nitrite

Details Process for forming calcium nitrite Process for forming calcium nitrite

1980-09-23

1981-10-13

Vertiz, O. R.

Chemistry of inorganic compounds

Nitrogen or compound thereof

Oxygen containing

423395, C01B 2120, C01D 900

Patent

active

042948134

ABSTRACT:
Disclosed herein is a process for preparing aqueous solutions of calcium nitrite by forming a solution of sodium nitrite and calcium nitrate; cooling the solution to precipitate sodium nitrate; admixing calcium hydroxide with the residual aqueous phase and forming a double salt of calcium nitrite/calcium hydroxide; and decomposing the double salt in the presence of water to form a solution of calcium nitrite and insolubilize calcium hydroxide.

REFERENCES:
patent: 1013984 (1912-01-01), Bosch et al.
patent: 1903815 (1933-04-01), Handforth
patent: 2013984 (1935-09-01), Gross
patent: 2535990 (1950-12-01), Stengel
patent: 3928543 (1975-12-01), Gregory et al.
patent: 4009246 (1977-02-01), Wendel
patent: 4208391 (1980-06-01), Endo et al.
Chemical Abstracts, vol. 52, No. 8708h.

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