Name  of Commodity:: HX-401

CAS No.: 375-72-4

Molecular Formula: n-C₄F₉SO₂F

Molecular  Weight : 302.1

Appearance  colorless:    colorless or light-yellow transparent liquid

Specific Weight(d²⁰_D): 1.700-1.750

Refractive Index (n²⁵_D): 1.2810

Boiling Point: 65-66°C

pH: 3.8-4.8

Content: ≥98%

Uses: the structural  function of this product is simislar  to  perfluorooctanesulfonyl  fluoride and can be used to synthetise various of special perfluoro surfactant, Its kali salt  C₄F₉SO₃K is a good kind of anion surfactant and the best fire retardant for  polycarbonate .