US PATENT SUBCLASS 423 / 95
.~.~.~ Nitrating or sulfating

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

1  DF  TREATING MIXTURE TO OBTAIN METAL CONTAINING COMPOUND {15}
89  DF  .~ Group IVA metal (Ge, Sn, or Pb) {5}
92  DF  .~.~ Forming insoluble substance in liquid {3}
95.~.~.~ Nitrating or sulfating

DEFINITION

Classification: 423/95

(under subclass 92) Processes which include the step of chemically forming a compound which contains the nitrate (NO3-) radical or the sulfate (SO4[supscrpt]2-[end supscrpt]) radical.