US PATENT SUBCLASS 203 / 13
.~ From nitric acid

Current as of: June, 1999
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203 /   HD   DISTILLATION: PROCESSES, SEPARATORY

12  DF  DISTILLING TO SEPARATE OR REMOVE ONLY WATER {2}
13.~ From nitric acid

DEFINITION

Classification: 203/13

(under subclass 12) Processes in which the liquid substance is aqueous nitric acid.

SEE OR SEARCH CLASS

423, Chemistry of Inorganic Compounds,

390.1+, for producing nitric acid by a chemical reaction.