US PATENT SUBCLASS 423 / 491
.~ Binary compound containing metal

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

462  DF  HALOGEN OR COMPOUND THEREOF {10}
491.~ Binary compound containing metal {6}
492  DF  .~.~> Refractory metal (Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, or W)
493  DF  .~.~> Iron group metal or copper (Fe, Co, Ni, or Cu)
494  DF  .~.~> Group IVA metal or copper (Ge, Sn, or Pb)
495  DF  .~.~> Group IIIA metal or beryllium (Al, Ga, In, Tl, or Be) {1}
497  DF  .~.~> Alkaline earth metal (Mg, Ca, Sr, or Ba) {1}
499.1  DF  .~.~> Alkali metal {3}

DEFINITION

Classification: 423/491

(under subclass 462) Products or processes wherein the compound contains only a halogen and a metal.

SEE OR SEARCH THIS CLASS, SUBCLASS:

103, for processes of treating mixtures to obtain a Group II B metal halide including the steps of (1) forming an insoluble substance in a liquid and (2) chemically forming a halogen containing compound.