US PATENT SUBCLASS 423 / 515
.~.~ Dithionite

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

511  DF  SULFUR OR COMPOUND THEREOF {4}
512.1  DF  .~ Oxygen containing {11}
515.~.~ Dithionite {1}
516  DF  .~.~.~> Employing amalgam as reactant

DEFINITION

Classification: 423/515

(under subclass 512.1) Products or processes wherein the product is a dithionite having the radical (S2O4[supscrpt]2-[end supscrpt]).

(1) Note. Dithionite is frequently incorrectly termed hydrosulfite in the patents.

(2) Note. The term hyposulfite is generic to both dithionite and thiosulfate.