US PATENT SUBCLASS 423 / 597-- .~.~.~.~.~ Dichromate

US PATENT SUBCLASS 423 / 597
.~.~.~.~.~ Dichromate

423 /	HD	CHEMISTRY OF INORGANIC COMPOUNDS

579	DF	OXYGEN OR COMPOUND THEREOF {4}
592	DF	.~ Metal containing {12}
593	DF	.~.~ Plural metals or metal and ammonium {6}
595	DF	.~.~.~ Chromium (e.g., chromate, etc.) {1}
596	DF	.~.~.~.~ And alkali metal, alkaline earth metal, or ammonium containing {1}
597		.~.~.~.~.~ Dichromate

Classification: 423/597

(under subclass 596) Products or processes wherein the compound is in the form of a dichromate (Cr_{2[end subscrpt]O_72-).}