CH3-CH2-OH
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]

The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • -CH2- — 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 …   The Collaborative International Dictionary of English

  • CH3- — 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 …   The Collaborative International Dictionary of English

  • -OH — 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 …   The Collaborative International Dictionary of English

  • Solvent — For other uses, see Solvent (disambiguation). A solvent (from the Latin solvō, “I loosen, untie, I solve”) is a liquid, solid, or gas that dissolves another solid, liquid, or gaseous solute, resulting in a solution that is soluble in a certain… …   Wikipedia

  • Спирты или алкоголи — Этим именем называют большую группу органических соединений, которые имеют сходство в химическом отношении с винным спиртом и заключают в своем составе углерод, водород и кислород. Все они суть гидроксильные производные углеводородов или, другими …   Энциклопедический словарь Ф.А. Брокгауза и И.А. Ефрона

  • Chemische Nomenklatur — In diesem Artikel oder Abschnitt fehlen folgende wichtige Informationen: Mehrere Oxidationsstufen des elektropositiven Partners, Legierungen, Wasserstoffverbindungen, Mehrbasige Säuren, Salzhydrate, Einteilung nach der Oxidationsstufe des… …   Deutsch Wikipedia

  • Nomenklatur (Chemie) — Wichtig bei der Nomenklatur (Namensgebung) für chemische Substanzen ist, dass ein Verbindungsname eindeutig ist und nur zu einer einzigen Strukturformel führt. Die Bezeichnung „Ethanol“ bezeichnet beispielsweise nur die Verbindung CH3 CH2 OH und… …   Deutsch Wikipedia

  • Polaridad de un disolvente — Saltar a navegación, búsqueda Contenido 1 Introducción 2 Constante dieléctrica y momento dipolar 3 Polaridad de enlace …   Wikipedia Español

  • Хлоргидрины — сложные эфиры многоатомных спиртов, отвечающие хлористо водородной кислоте. Название это произведено Бертело (от франц. acide chlorhydrique) по аналогии с названиями сложных эфиров глицерина (напр. пальмитин, ацетин, бутирин и др.), X. которого… …   Энциклопедический словарь Ф.А. Брокгауза и И.А. Ефрона

  • Diluant — Solvant Un solvant (également nommé en suisse romande thinner pour les solvants puissant) est un liquide qui a la propriété de dissoudre et de diluer d autres substances sans les modifier chimiquement et sans lui même se modifier. L eau est le… …   Wikipédia en Français

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”