DIFF Subgroup
C01B 25/301 Full Title
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) > Alkali metal phosphates
Of 1 combined children, 0 exist in both systems.
1 codes are CPC-only extensions.