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  2. 'Dark Waters': Here's the toxic reason why you should toss ...

    www.aol.com/lifestyle/dark-waters-heres-toxic...

    If you do want to continue using nonstick cookware, you should replace items purchased prior to 2014. As mentioned above, the phase-out of PFOA didn't go into effect until 2013, which means that ...

  3. Non-stick surface - Wikipedia

    en.wikipedia.org/wiki/Non-stick_surface

    Food in a non-stick pan. A 'non-stick surface' is engineered to reduce the ability of other materials to stick to it. Non-sticking cookware is a common application, where the non-stick coating allows food to brown without sticking to the pan. Non-stick is often used to refer to surfaces coated with polytetrafluoroethylene (PTFE), a well-known ...

  4. Surface chemistry of cooking - Wikipedia

    en.wikipedia.org/wiki/Surface_chemistry_of_cooking

    Polytetrafluoroethylene (commonly called by its DuPont brand name, Teflon) is a polymer that is used as a coating for non-stick cookware. The polymer is a polyethylene chain with fluorine atoms replacing the hydrogen atoms. The strength of the carbon-fluorine bonds makes it nonreactive to most things.

  5. Monomethylhydrazine - Wikipedia

    en.wikipedia.org/wiki/Monomethylhydrazine

    Monomethylhydrazine (MMH) is a highly toxic, volatile hydrazine derivative with the chemical formula CH 6 N 2.It is used as a rocket propellant in bipropellant rocket engines because it is hypergolic with various oxidizers such as nitrogen tetroxide (N 2 O 4) and nitric acid (HNO 3).

  6. HAZMAT Class 9 Miscellaneous - Wikipedia

    en.wikipedia.org/wiki/HAZMAT_Class_9_Miscellaneous

    Any material that meets the definition in 49 CFR 171.8 for an elevated temperature material, a hazardous substance, a hazardous waste, or a marine pollutant. A new sub-class, class 9A, has been in effect since January 1, 2017. This is limited to the labeling of the transport of lithium batteries.

  7. Safety data sheet - Wikipedia

    en.wikipedia.org/wiki/Safety_data_sheet

    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.

  8. List of UN numbers 3301 to 3400 - Wikipedia

    en.wikipedia.org/wiki/List_of_UN_numbers_3301_to...

    Radioactive material, low specific activity (LSA-II), non-fissile or fissile excepted: UN 3322: 7: Radioactive material, low specific activity (LSA-III), non-fissile or fissile excepted: UN 3323: 7: Radioactive material, Type C package, non-fissile or fissile excepted: UN 3324: 7: Radioactive material, low specific activity (LSA-II), fissile ...

  9. Material selection - Wikipedia

    en.wikipedia.org/wiki/Material_selection

    Material selection is a step in the process of designing any physical object. In the context of product design, the main goal of material selection is to minimize cost while meeting product performance goals. [1] Systematic selection of the best material for a given application begins with properties and costs of