US PATENT SUBCLASS 423 / 566.2
.~.~ Sulfide of alkali metal

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

511  DF  SULFUR OR COMPOUND THEREOF {4}
561.1  DF  .~ Binary compound {7}
566.2.~.~ Sulfide of alkali metal

DEFINITION

Classification: 423/566.2

Sulfide of alkali metal:

(under subclass 561.1) Product or process in which the compound is a sulfide of an alkali metal.