US PATENT SUBCLASS 423 / 580.2
.~.~ Heavy water

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

579  DF  OXYGEN OR COMPOUND THEREOF {4}
580.1  DF  .~ Water {1}
580.2.~.~ Heavy water

DEFINITION

Classification: 423/580.2

Heavy water:

(under subclass 580.1) Products and processes wherein the water is in its heavy form; e.g., D2O where D is a deuterium isotopic hydrogen mass=2 or H2[supscrpt]18[end supscrpt]O where [supscrpt]18[end supscrpt]O is an oxygen mass=18.

SEE OR SEARCH THIS CLASS, SUBCLASS:

249, for heavy water that contains tritium and exhibits nuclear disintegration with emission of radioactive particles.

SEE OR SEARCH CLASS

376, Induced Nuclear Reactions: Processes, Systems, and Elements, for a combination of nuclear reaction and tritium removal.