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PCE
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DIFF Subgroup
C23C 22/08

Orthophosphates

Introduced: January 1985

Full Title

Full titles differ between systems:

IPC:

Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals > using aqueous solutions > using aqueous acidic solutions with pH < 6 > containing phosphates > Orthophosphates

CPC:

Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals > using aqueous solutions > using aqueous acidic solutions with pH less than 6 > containing phosphates > Orthophosphates

IPC and CPC are identically structured here. All 5 subcodes exist in both systems.

IPC defines codes here since 1985.

Child Classifications

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  • C23C 22/10 containing oxidants since 1985 IPC+CPC Available in IPC and CPC
  • C23C 22/20 containing aluminium cations since 1985 IPC+CPC Available in IPC and CPC
  • C23C 22/22 containing alkaline earth metal cations since 1985 IPC+CPC Available in IPC and CPC