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  2. 2,3-Dimethylbutane - Wikipedia

    en.wikipedia.org/wiki/2,3-Dimethylbutane

    Density: 662 mg mL −1: Melting point: −136 to −124 °C; −213 to −191 °F; 137 to 149 K ... 2,3-Dimethylbutane is an isomer of hexane. It has the chemical ...

  3. 2,2-Dimethylbutane - Wikipedia

    en.wikipedia.org/wiki/2,2-Dimethylbutane

    2,2-Dimethylbutane, trivially known as neohexane at William Odling's 1876 suggestion, [4] is an organic compound with formula C 6 H 14 or (H 3 C-) 3-C-CH 2-CH 3. It is therefore an alkane , indeed the most compact and branched of the hexane isomers — the only one with a quaternary carbon and a butane (C 4 ) backbone.

  4. Pinacol - Wikipedia

    en.wikipedia.org/wiki/Pinacol

    2,3-Dimethylbutane-2,3-diol. Other names 2,3-Dimethyl-2,3-butanediol ... Density: 0.967 g/cm 3: Melting point: 40 to 43 °C (104 to 109 °F; 313 to 316 K)

  5. Pinacolone - Wikipedia

    en.wikipedia.org/wiki/Pinacolone

    Most famously, at least in the classroom, pinacolone arises by the pinacol rearrangement, which occurs by protonation of pinacol (2,3-dimethylbutane-2,3-diol). [4] Industrially pinacolone is made by the hydrolysis of 4,4,5-trimethyl-1,3-dioxane, which is the product of isoprene and formaldehyde via the Prins reaction.

  6. Alkane - Wikipedia

    en.wikipedia.org/wiki/Alkane

    For example, compare isobutane (2-methylpropane) and n-butane (butane), which boil at −12 and 0 °C, and 2,2-dimethylbutane and 2,3-dimethylbutane which boil at 50 and 58 °C, respectively. [ 18 ] On the other hand, cycloalkanes tend to have higher boiling points than their linear counterparts due to the locked conformations of the molecules ...

  7. Octane rating - Wikipedia

    en.wikipedia.org/wiki/Octane_rating

    Ethanol energy density can be compared with gasoline in heat-of-combustion tables. ... 2,2-dimethylbutane: 93.4 2,3-dimethylbutane: 94.4

  8. Could Retirees See Social Security Benefits Cut Under Trump?

    www.aol.com/could-retirees-see-social-security...

    Social Security is the U.S. government’s biggest program; as of June 30, 2024, about 67.9 million people, or one in five Americans, collected Social Security benefits.This year, we’re seeing a ...

  9. Pinacolyl alcohol - Wikipedia

    en.wikipedia.org/wiki/Pinacolyl_alcohol

    Pinacolyl alcohol (also known as 3,3-dimethylbutan-2-ol and as pine alcohol) is one of the isomeric hexanols and a secondary alcohol. Pinacolyl alcohol appears on the List of Schedule 2 substances of the Chemical Weapons Convention as a precursor for the nerve agent soman .