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  2. 1,1,2-Trichloro-1,2,2-trifluoroethane - Wikipedia

    en.wikipedia.org/wiki/1,1,2-Trichloro-1,2,2-tri...

    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 12 years. In some parts of the world, these reactions have ...

  3. List of trigonometric identities - Wikipedia

    en.wikipedia.org/wiki/List_of_trigonometric...

    A formula for computing the trigonometric identities for the one-third angle exists, but it requires finding the zeroes of the cubic equation 4x 3 − 3x + d = 0, where is the value of the cosine function at the one-third angle and d is the known value of the cosine function at the full angle.

  4. Mirro Aluminum Company - Wikipedia

    en.wikipedia.org/wiki/Mirro_Aluminum_Company

    Groupe SEB. Mirro is an American cookware brand owned by the French consortium Groupe SEB, a world's largest cookware manufacturer, through its Colombian subsidiary IMUSA. Between 1909 and 2003, it was an American company specialising in aluminium cookware called Mirro Aluminum Company, based in Manitowoc, Wisconsin .

  5. 1,1,2,2-Tetrafluoroethane - Wikipedia

    en.wikipedia.org/wiki/1,1,2,2-tetrafluoroethane

    Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). 1,1,2,2-Tetrafluoroethane (also called R-134 or HFC-134) is a hydrofluorocarbon, a fluorinated alkane. It is an isomer of the more-used 1,1,1,2-tetrafluoroethane (R-134a). It is used as a foam expansion agent and heat transfer fluid.

  6. Iron - Wikipedia

    en.wikipedia.org/wiki/Iron

    Fe + 2 HX → FeX 2 + H 2 (X = F, Cl, Br, I) Iron reacts with fluorine, chlorine, and bromine to give the corresponding ferric halides, ferric chloride being the most common. 2 Fe + 3 X 22 FeX 3 (X = F, Cl, Br) Ferric iodide is an exception, being thermodynamically unstable due to the oxidizing power of Fe 3+ and the high reducing power of ...

  7. Austempered Ductile Iron - Wikipedia

    en.wikipedia.org/wiki/Austempered_Ductile_Iron

    Austempered Ductile Iron (ADI) is a form of ductile iron that enjoys high strength and ductility as a result of its microstructure controlled through heat treatment. While conventional ductile iron was discovered in 1943 and the austempering process had been around since the 1930s, the combination of the two technologies was not commercialized ...

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