Skip to content
PCE
Search Classifications
Search for IPC and CPC classification codes or keywords
DIFF Subgroup
C01B 17/22

Alkali metal sulfides or polysulfides

Introduced: September 1968

Full Title

Sulfur; Compounds thereof > Alkali metal sulfides or polysulfides

IPC and CPC are identically structured here. All 7 subcodes exist in both systems.

Child Classifications

Navigate with arrow keys, Enter to open

  • C01B 17/30 Preparation from sodium or potassium amalgam with sulfur or sulfides IPC+CPC Available in IPC and CPC
  • C01B 17/32 Hydrosulfides of sodium or potassium IPC+CPC Available in IPC and CPC
  • C01B 17/34 Polysulfides of sodium or potassium IPC+CPC Available in IPC and CPC
  • C01B 17/36 Purification IPC+CPC Available in IPC and CPC
  • C01B 17/38 Dehydration IPC+CPC Available in IPC and CPC
  • C01B 17/40 Making shaped products, e.g. granules IPC+CPC Available in IPC and CPC