US PATENT SUBCLASS 562 / 878
.~ Two phosphori bonded directly to the same divalent chalcogen atom (e.g., pyrophosphorus compounds, etc.)

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562 /   HD   ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {41}
878.~ Two phosphori bonded directly to the same divalent chalcogen atom (e.g., pyrophosphorus compounds, etc.)

DEFINITION

Classification: 562/878

(under subclass 1) Compounds under Class 532, ... wherein a divalent chalcogen atom (i.e., oxygen, sulfur, selenium or tellurium) is bonded directly to two phosphorus atoms.

(1) Note. An example of a compound provided for herein is: [figure]

SEE OR SEARCH CLASS

588, Hazardous or Toxic Waste Destruction or Containment,

206, and 215-222 for the destruction of organic hazardous or toxic waste containing halogen chalcogen or phosphorus.