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PVC: products of degradation?

Does anyone know what's produced when PVC degrades? Is it hydrochloric acid? Is it PVC's reaction with oxygen that causes the degradation?

Thanks,

Dan

Comments

  • RYKRYK Posts: 35,797 ✭✭✭✭✭
    James, former beloved board member here and friend and former business partner of Jaderarecoins, has this article on his website:

    Link to article on PVC
  • BAJJERFANBAJJERFAN Posts: 31,082 ✭✭✭✭✭
    A few errors in that article. PVC is NOT added to flips make them pliable. By itself pure PVC is brittle and virtually useless for making much of anything. Plasticizers derived from phthalate esters are added to it to make it soft and useable..
    theknowitalltroll;
  • MrSpudMrSpud Posts: 4,499 ✭✭✭
    From PVC MSDS



    Chemical Name:  Polyvinyl Chloride
    Composition and Information on IngredientsChemical Name

    Polyvinyl Chloride 99+%
    Bis(2-ethylhexyl) Phthalate <1%
    Vinyl Chloride Monomer <8.5ppm


    Incompatibilities: Avoid contact with Strong oxidizers. Also, avoid contact with acetal or acetal copolymers and with amine containing materials during processing. At processing conditions, these materials are mutually destructive and involve rapid degradation.
    Instable Conditions:  Excessive temperatures (see Incompatibilities).
    Decomposition Temperature:  Prolong heating of product above 200°C or short term heating above 250°C. may result in rapid evolution of hydrogen chloride.
    Decomposition products:  Hydrogen Chloride, carbon monoxide, carbon dioxide and small amounts of benzene and aromatic and aliphatic hydrocarbons.
  • BAJJERFANBAJJERFAN Posts: 31,082 ✭✭✭✭✭
    Wut does this info have to do with anything?
    theknowitalltroll;

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