Perfluoro-C2-18-alkylethyl iodides CAS:68188-12-5 Molecular formula:I(CF2)nCF2CF2I Appearance (20):light pink solid Boiling point:130 270 Melting point:50.77 vapor density: (Air = 1) > 1 pH(20) :6 Specific gravity(35):1.8 g/mL Usage: The perfluoroalkyl ethyl series is an important starting material for producing the corresponding alcohol, thiol, sulfonyl chloride, and other fluorinated intermediates. These intermediates can be further modified to produce various fluorinated surfactants, fluorinated surface coatings, and other fluorinated fine chemicals. They have excellent and unique properties including low surface tension, high heat stability, high chemical resistance, as well as water & oil repellency.