DIFF Subgroup
C01B 25/44 Metaphosphates
Introduced: July 1974
Full Title
Full titles differ between systems:
IPC:
Phosphorus; Compounds thereof > Oxyacids of phosphorus; Salts thereof > Phosphates > Condensed phosphates > Metaphosphates
CPC:
Phosphorus; Compounds thereof ( , C01B21/00, C01B23/00 take precedence; perphosphates C01B15/16) > Oxyacids of phosphorus; Salts thereof (peroxyacids or salts thereof C01B15/00) > Phosphates (perphosphates C01B15/16) > Condensed phosphates > Metaphosphates
IPC and CPC are identically structured here. All 1 subcodes exist in both systems.
IPC defines codes here since 1980.
Child Classifications
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