US PATENT SUBCLASS 423 / 643
.~.~.~ By reacting a nitrogenous or halogenous compound

Current as of: June, 1999
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423 /   HD   CHEMISTRY OF INORGANIC COMPOUNDS

579  DF  OXYGEN OR COMPOUND THEREOF {4}
592  DF  .~ Metal containing {12}
641  DF  .~.~ Alkali metal (Li, Na, K, Rb, or Cs) {2}
643.~.~.~ By reacting a nitrogenous or halogenous compound

DEFINITION

Classification: 423/643

(under subclass 641) Processes in which preparation of the compound includes the use of a compound of nitrogen or a halogen as a reactant.