Preparation by reacting phosphate-containing material with an acid, e.g. wet process

Introduced: September 1968

Title

Titles differ between systems:

IPC: Preparation by reacting phosphate containing material with an acid, e.g. wet process

CPC: Preparation by reacting phosphate-containing material with an acid, e.g. wet process

Full Title

Full titles differ between systems:

IPC:

Phosphorus; Compounds thereof > Oxyacids of phosphorus; Salts thereof > Phosphoric acid > Preparation by reacting phosphate containing material with an acid, e.g. wet process

CPC:

Phosphorus; Compounds thereof ( , C01B21/00, C01B23/00 take precedence; perphosphates C01B15/16) > Oxyacids of phosphorus; Salts thereof (peroxyacids or salts thereof C01B15/00) > Phosphoric acid > Preparation by reacting phosphate-containing material with an acid, e.g. wet process

CPC subdivides this area 3x more granularly than IPC with 2 additional codes.

2 codes are CPC-only extensions.

1 shared codes have differing titles between IPC and CPC.

IPC defines codes here since 1980.

Child Classifications

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C01B 25/2204 CPC only CPC only
C01B 25/2208 +2 CPC CPC only CPC only
C01B 25/222 with sulfuric acid, a mixture of acids mainly consisting of sulfuric acid or a mixture of compounds forming it in situ, e.g. a mixture of sulfur dioxide, water and oxygen since 1980 IPC+CPC Available in IPC and CPC