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  2. Pitch (resin) - Wikipedia

    en.wikipedia.org/wiki/Pitch_(resin)

    Pitch produced from petroleum may be called bitumen or asphalt, while plant-derived pitch, a resin, is known as rosin in its solid form. Tar is sometimes used interchangeably with pitch, but generally refers to a more liquid substance derived from coal production, including coal tar, or from plants, as in pine tar. [2]

  3. Bitumen - Wikipedia

    en.wikipedia.org/wiki/Bitumen

    Natural bitumen from the Dead Sea Refined bitumen The University of Queensland pitch drop experiment, demonstrating the viscosity of bitumen. Bitumen (UK: / ˈ b ɪ tʃ ʊ m ɪ n / BIH-chuum-in, US: / b ɪ ˈ tj uː m ɪ n, b aɪ-/ bih-TEW-min, by-) [1] is an immensely viscous constituent of petroleum. Depending on its exact composition it can ...

  4. Tar - Wikipedia

    en.wikipedia.org/wiki/Tar

    There is a tendency to use "tar" for more liquid substances and "pitch" for more solid (viscoelastic) substances. [2] Both "tar" and "pitch" are applied to viscous forms of asphalt, such as the asphalt found in naturally occurring tar pits (e.g., the La Brea Tar Pits in Los Angeles).

  5. Pyrobitumen - Wikipedia

    en.wikipedia.org/wiki/Pyrobitumen

    Pyrobitumen is a type of solid, amorphous organic matter. Pyrobitumen is mostly insoluble in carbon disulfide and other organic solvents as a result of molecular cross-linking, which renders previously soluble organic matter (i.e., bitumen) insoluble.

  6. Mummia - Wikipedia

    en.wikipedia.org/wiki/Mummia

    The same as asphalt, mineral pitch, Jew's pitch, Bitumen judaicum", and in modern scientific use means "the generic name of certain mineral inflammable substances, native hydrocarbons more or less oxygenated, liquid, semi-solid, and solid, including naphtha, petroleum, asphalt, etc." Asphalt (from Ancient Greek ásphaltos "asphalt, bitumen ...

  7. Pitch drop experiment - Wikipedia

    en.wikipedia.org/wiki/Pitch_drop_experiment

    A pitch drop experiment is a long-term experiment which measures the flow of a piece of pitch over many years. "Pitch" is the name for any of a number of highly viscous liquids which appear solid, most commonly bitumen, also known as asphalt. At room temperature, tar pitch flows at a very low rate, taking several years to form a single drop.

  8. Substance vs. sales pitch: What did the Trump vs. Biden ... - AOL

    www.aol.com/substance-vs-sales-pitch-did...

    Substance vs. sales pitch: What did the Trump vs. Biden presidential debate mean for Florida? Gannett. Palm Beach Post. June 28, 2024 at 2:01 PM. Joe Biden won that debate, on substance and ...

  9. Flat roof - Wikipedia

    en.wikipedia.org/wiki/Flat_roof

    An important consideration in tarred flat roof quality is knowing that the common term 'tar' applies to rather different products: tar or pitch (which is derived from wood resins), coal tar, asphalt and bitumen. Some of these products appear to have been interchanged in their use and are sometimes used inappropriately, as each has different ...