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Chlorotrifluoroethylene (CTFE) is a chlorofluorocarbon with chemical formula CFCl=CF 2. It is commonly used as a refrigerant in cryogenic applications. CTFE has a carbon-carbon double bond and so can be polymerized to form polychlorotrifluoroethylene or copolymerized to produce the plastic ECTFE .
ECTFE (ethylene-chlorotrifluoroethylene) is an alternating copolymer of ethylene and chlorotrifluoroethylene. It is a semi-crystalline fluoropolymer (a partly fluorinated polymer ), with chemical corrosion resistance properties.
PCTFE films are sold under the tradename Aclar by Honeywell. [8] Other current and former trade names of PCTFE include Hostaflon C2 from Hoechst , Fluon from ICI , Plaskon from Allied Chemical Corporation , Halon from Ausimont USA, [ 9 ] [ 10 ] and Ftoroplast-3 in the USSR and Russian Federation.
An example SDS, including guidance for handling a hazardous substance and information on its composition and properties. A safety data sheet (SDS), [1] material safety data sheet (MSDS), or product safety data sheet (PSDS) is a document that lists information relating to occupational safety and health for the use of various substances and products.
CClF 2 CCl 2 F → C 2 F 3 Cl 2 + Cl• Cl• + O 3 → ClO• + O 2. This reaction is followed by: ClO• + O → Cl• + O 2. The process regenerates Cl• to destroy more O 3. The Cl• will destroy an average of 100,000 O 3 molecules during its atmospheric lifetime of 1–2 years. [12]
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ClF 3 + H 2 O → HF + HCl + OF 2 ClF 3 + 2H 2 O → 3HF + HCl + O 2. Upon heating, it decomposes: [13] ClF 3 ⇌ ClF + F 2. Reactions with many metals and even metal oxides give fluorides: [15] 6NiO + 4 ClF 3 → 6 NiF 2 + 3 O 2 + 2 Cl 2 AgCl + ClF 3 → AgF 2 + ClF + 1/ 2 Cl 2. ClF 3 is used to produce uranium hexafluoride: U + 3 ClF 3 → UF ...
Bromotrifluoroethylene can be prepared from chlorotrifluoroethylene with high yields: [3] [4] F 2 C=ClF + HBr → CF 2 BrCHClF + Zn → CF 2 =CHF + ZnBrCl CF 2 =CHF + Br 2 → CF 2 BrCHBrF + KOH → CF 2 CHBr + KBr + H 2 O. It was first prepared by the Belgian chemist Frédéric Swarts in 1899. [5]