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PCE
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DIFF Subgroup
C11D 1/12

Sulfonic acids or sulfuric acid esters; Salts thereof

Introduced: September 1968

Full Title

Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent > Anionic compounds > Sulfonic acids or sulfuric acid esters; Salts thereof

Of 10 combined children, 8 exist in both systems.

2 codes are CPC-only extensions.

Child Classifications

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  • C11D 1/123 CPC only CPC only
  • C11D 1/126 CPC only CPC only
  • C11D 1/16 derived from divalent or polyvalent alcohols IPC+CPC Available in IPC and CPC
  • C11D 1/26 derived from heterocyclic compounds IPC+CPC Available in IPC and CPC
  • C11D 1/28 Sulfonation products derived from fatty acids or their derivatives, e.g. esters, amides IPC+CPC Available in IPC and CPC
  • C11D 1/29 Sulfates of polyoxyalkylene ethers since 1974 IPC+CPC Available in IPC and CPC
  • C11D 1/30 Sulfonation products derived from lignin IPC+CPC Available in IPC and CPC