US PATENT SUBCLASS 423 / 497
.~.~ Alkaline earth metal (Mg, Ca, Sr, or Ba)

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

462  DF  HALOGEN OR COMPOUND THEREOF {10}
491  DF  .~ Binary compound containing metal {6}
497.~.~ Alkaline earth metal (Mg, Ca, Sr, or Ba) {1}
498  DF  .~.~.~> Anhydrous magnesium chloride

DEFINITION

Classification: 423/497

(under subclass 491) Products or processes in which the metal is magnesium, calcium, strontium or barium.

SEE OR SEARCH THIS CLASS, SUBCLASS:

163, for processes of treating mixtures to obtain a compound containing a halogen and an alkaline earth metal, including the steps of (1) forming an insoluble substance in a liquid and (2) chemically forming a halogen containing compound.

490, for a binary compound consisting of fluorine and an alkali or alkaline earth metal.