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2 definitions found
 for CH3.CH2.OH
From The Collaborative International Dictionary of English v.0.48 :

  molecular formula \mo*lec"u*lar form"u*la\, n. (Chem.)
     An expression representing the composition of elements in a
     chemical substance, commonly consisting of a series of
     letters and numbers comprising the atomic symbols of each
     element present in a compound followed by the number of atoms
     of that element present in one molecule of the substance.
     Thus the molecular formula for common alcohol (ethyl alcohol)
     is C2H6O, meaning that each molecule contains two carbon
     atoms, six hydrogen atoms, and one oxygen atom. The molecular
     formula may be written to provide some indication of the
     actual structure of the molecule, in which case structural
     units may be written separately. Thus, ethyl alcohol can also
     be written as CH3.CH2.OH or CH3-CH2-OH, in which the
     period or dash between functional groups indicates a single
     bond between the principle atoms of each group. This formula
     shows that in ethyl alcohol, the carbon of a methyl group
     ({CH3-) is attached to the carbon of a methylene group
     ({-CH2-), which is attached to the oxygen of a hydroxyl
     group ({-OH). A structural formula is a graphical
     depiction of the relative positions of atoms in a molecule,
     and may be very complicated.
     [PJC]

From The Collaborative International Dictionary of English v.0.48 :

  Alcohol \Al"co*hol\ ([a^]l"k[-o]*h[o^]l), n. [Cf. F. alcool,
     formerly written alcohol, Sp. alcohol alcohol, antimony,
     galena, OSp. alcofol; all fr. Ar. al-kohl a powder of
     antimony or galena, to paint the eyebrows with. The name was
     afterwards applied, on account of the fineness of this
     powder, to highly rectified spirits, a signification unknown
     in Arabia. The Sp. word has both meanings. Cf. Alquifou.]
     1. An impalpable powder. [Obs.]
        [1913 Webster]
  
     2. The fluid essence or pure spirit obtained by distillation.
        [Obs.] --Boyle.
        [1913 Webster]
  
     3. Pure spirit of wine; pure or highly rectified spirit
        (called also ethyl alcohol or ethanol, CH3.CH2.OH);
        the spirituous or intoxicating element of fermented or
        distilled liquors, or more loosely a liquid containing it
        in considerable quantity. It is extracted by simple
        distillation from various vegetable juices and infusions
        of a saccharine nature, which have undergone vinous
        fermentation.
  
     Note: [The ferementation is usually carried out by addition
           of brewer's yeast, Saccharomyces cerevisiae to an
           aqueous solution containing carbohydrates.]
           [1913 Webster +PJC]
  
     Note: As used in the U. S. "Pharmacop[oe]ia," alcohol
           contains 91 per cent by weight of ethyl alcohol and 9
           per cent of water; and diluted alcohol (proof spirit)
           contains 45.5 per cent by weight of ethyl alcohol and
           54.5 per cent of water.
           [1913 Webster]
  
     4. (Organic Chem.) A class of compounds analogous to vinic
        alcohol in constitution. Chemically speaking, they are
        hydroxides of certain organic radicals; as, the radical
        ethyl+alcohol+({C2H5.OH">ethyl forms common or ethyl alcohol ({C2H5.OH); methyl
        methyl+alcohol+({CH3.OH">forms methyl alcohol ({CH3.OH) or wood alcohol; amyl
        amyl+alcohol+({C5H11.OH">forms amyl alcohol ({C5H11.OH) or fusel oil, etc.
        [1913 Webster]

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