.~.~ By direct decomposition of binary compound; e.g., chemical storage, etc.
DEFINITION
Classification: 423/658.2
By direct decomposition of binary compound; e.g., chemical
storage, etc.:
(under subclass 648.1) Subject matter wherein the elemental hydrogen is obtained directly from a compound of hydrogen containing only one other element, without intermediate transfer to a compound containing more than one other element.
(1) Note. The other member of the binary hydrogen compound need not enter the elementary state for the process to be considered "decomposition".
(2) Note. Where an alloy of two or more metals is hydrided and hydrogen is recovered from the hydride, the process is proper for placement in this subclass.
SEE OR SEARCH CLASS
75, Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, and Loose Metal Particulate Mixtures,
228+, and 251+ for a metal powder composition chemically reactive with hydrogen to form a hydride or hydrides, which hydrided metal composition can readily yield back hydrogen.
206, Special Receptacle or Package, 0.7, for a gas storage receptacle containing an "absorbent".
252, Compositions,
188.25, and 188.26 for compositions chemically reactive with hydrogen to form a hydride or hydrides which hydrided composition can readily yield back hydrogen.
420, Alloys or Metallic Compositions, appropriate subclasses for such compositions chemically reactive with hydrogen to form a hydride or hydrides which yielded composition can readily yield back hydrogen.
