US PATENT SUBCLASS 562 / 8
.~ Phosphorus acids or salts thereof (i.e., compounds having -XH, wherein X is chalcogen, attached directly to phosphorus by nonionic bonding and wherein the hydrogen may be replaced by a substituted or unsubstituted ammonium or by a group IA or IIA light metal)

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

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {41}
8.~ Phosphorus acids or salts thereof (i.e., compounds having -XH, wherein X is chalcogen, attached directly to phosphorus by nonionic bonding and wherein the hydrogen may be replaced by a substituted or unsubstituted ammonium or by a group IA or IIA light metal) {7}
9  DF  .~.~> Sulfur attached directly to the phosphorus by nonionic bonding
10  DF  .~.~> Nitrogen attached directly to the phosphorus by nonionic bonding
11  DF  .~.~> Nitrogen attached indirectly to the phosphorus by nonionic bonding {3}
19  DF  .~.~> The phosphorus is in a ring
20  DF  .~.~> Plural phosphori attached indirectly to each other by nonionic bonding {1}
23  DF  .~.~> Chalcogen attached indirectly to the phosphorus by nonionic bonding {1}
25  DF  .~.~> Halogen attached indirectly to the phosphorus by nonionic bonding

DEFINITION

Classification: 562/8

(under subclass 1) Compounds under Class 532, ... wherein -XH is bonded directly to phosphorus by nonionic bonding; the X is chalcogen (i.e., oxygen, sulfur, selenium or tellurium) and -H of -XH may be replaced by a Group IA or IIA light metal or by substituted or unsubstituted ammonium (i.e., phosphorus acid or salt thereof).

(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 213-225 for the destruction of organic hazardous or toxic waste containing halogen, chalcogen, phosphorus, nitrogen, and group IA or IIA light metals.