US PATENT SUBCLASS 423 / 561.1
.~ Binary compound

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

511  DF  SULFUR OR COMPOUND THEREOF {4}
561.1.~ Binary compound {7}
562  DF  .~.~> Polysulfide
563  DF  .~.~> Hydrogen sulfide {1}
565  DF  .~.~> Utilizing free sulfur as reactant
566  DF  .~.~> Utilizing sulfate or sulfuric acid as reactant
566.1  DF  .~.~> Sulfide of Cd, Zn, or Hg
566.2  DF  .~.~> Sulfide of alkali metal
566.3  DF  .~.~> Sulfide of alkaline earth metal

DEFINITION

Classification: 423/561.1

Binary compound:

(under subclass 511) Products or processes in which the

compound consists of sulfur and only one additional element.