Potassium perfluorobutanesulfonate CAS 29420-49-3

Chemical products
  • Chemical name: Potassium perfluorobutanesulfonate

  • Synonym: Potassium nonafluorobutanesulfonate

  • Molecular formula: C₄F₉SO₃K

  • Molecular weight: ~338 g/mol

  • Appearance: White to off-white crystalline powder

  • Solubility: Highly soluble in water; soluble in polar solvents

Key Properties

  • Anionic fluorosurfactant with excellent chemical and thermal stability

  • Lower bioaccumulation potential compared with long-chain PFOS

  • Strong surface activity and wetting performance

Applications

 

  • Electroplating & metal finishing (wetting agent, mist suppressant)

  • Electronics & semiconductor processing

  • Surfactant in specialty chemical formulations

  • Intermediate for fluorinated materials and surface treatments