Chlorine; Hydrogen chloride

Introduced: July 1974

Full Title

Full titles differ between systems:

IPC:

Halogens; Halogen acids > Chlorine; Hydrogen chloride

CPC:

Halogens; Halogen acids (oxyacids C01B11/00) > Chlorine; Hydrogen chloride

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

3 codes are CPC-only extensions.

IPC defines codes here since 1974.

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C01B 7/012 CPC only CPC only
C01B 7/015 CPC only CPC only
C01B 7/017 CPC only CPC only
C01B 7/03 Preparation from chlorides since 1974 +1 CPC IPC+CPC Available in IPC and CPC
C01B 7/07 Purification since 1974 +2 CPC IPC+CPC Available in IPC and CPC