Preparation of anhydrous nitric acid

Details Preparation of anhydrous nitric acid Preparation of anhydrous nitric acid

1975-02-12

1976-09-21

Peters, G. O.

Chemistry of inorganic compounds

Nitrogen or compound thereof

Oxygen containing

423523, 252189, 260644, C01B 2146, C07C 7912

Patent

active

039819752

ABSTRACT:
A method for preparing anhydrous nitric acid comprising extracting an aqueous mixture of nitric acid and sulfuric acid with methylene chloride to yield a solution of anhydrous nitric acid in methylene chloride. The anhydrous nitric acid can be isolated from the methylene chloride by distillation or crystallization. Alternatively, the anhydrous solution of nitric acid in methylene chloride may be used directly. The methylene chloride extract of the nitric acid-sulfuric acid mixture is a useful nitrating agent.

REFERENCES:
genich et al., "Izv. Akad. Nauk. Ser. Khim.," USSR, 1966, pp. 66-69, Abst. "Chemical Abst." Vol. 64. p. 15183.
Plesch et al., "Chemistry & Industry" Sept. 1971, pp. 1043-1044.

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