What is Ethanol: Definition and 110 Discussions

Ethanol (also called ethyl alcohol, grain alcohol, drinking alcohol, or simply alcohol) is an organic chemical compound. It is a simple alcohol with the chemical formula C2H6O. Its formula can be also written as CH3−CH2−OH or C2H5OH (an ethyl group linked to a hydroxyl group), and is often abbreviated as EtOH. Ethanol is a volatile, flammable, colorless liquid with a slight characteristic odor. It is a psychoactive drug, recreational drug, and the active ingredient in alcoholic drinks.
Ethanol is naturally produced by the fermentation of sugars by yeasts or via petrochemical processes such as ethylene hydration. It has medical applications as an antiseptic and disinfectant. It is used as a chemical solvent and in the synthesis of organic compounds. Ethanol is a fuel source.

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  1. S

    What causes the maximum viscosity in ethanol concentrations of 50%?

    I did an experiment to calculate viscosities of various ethanol concentrations, 0% to 100% the graph is parabolic, and therefor the highest viscosity is 50% concentration i don't understand why, since seperately water and ethanol are closer to 1 centipoise well ethanol more and water less...
  2. G

    Ethanol Production Through Fermentation: Questions Answered

    I have read that ethanol is produced by fermenting sugar, but I do not know what kind. I also read ethanol is produced by fermenting cellulose, which is correct? I've heard that ethanol can be produced from grass and newspaper, is there anything special you have to do to it? What crop/organic...
  3. K

    Change in GIbbs free energy for ethanol

    hey i seem to be having a lot of trouble with this type of question: Calculate the change in Gibbs energy of 35g of ethanol (mass density = 0.789g cm-3) when the pressure is increased isothermally from 1 atm to 3000 atm. in my notes i have that dG=V(Pf-Pi) and search up on the net that...
  4. P

    Diluting the stock solution with ethanol

    I think the idea is you are diluting the stock solution with ethanol...how do I calculate how much the concentration is in the solution X and Y? ignore those lines...I had to use those to line the data up.
  5. C

    Miscibility of Water and Ethanol

    Ethanol and water are completely miscible; that is, they dissolve in each other in all propertions: a) When the two substancse are mixed, is randomness increased or decreased? b) Head is liberated in the dissolving process. Does the tendency toward the minimum energy favour the separated...
  6. B

    Is it safe to drink lab ethanol?

    I have been thinking about order 100% ethonal(^^OH) from a chemical supply on line. I know that i need to get undenatured/pure ethanol. What other kinds of contaiments way be present in ethanol (i.e. methanol?). Should i dilute it, I have had strong alchol before (151 proof). I know...
  7. P

    How to Make Ethanol - Tips & Guides

    Anybody know of a good site or know off of the top of their heads how to make ethanol? Paden Roder
  8. T

    The problems with 100% pure ethanol

    I was reading that ethanol can only be purified up to something like 95% by distillation and further purification calls for CaO. Why is this? Is CaO a drying agent? Why is it that you can't separate water completely from ethanol? Is it just not feasible without CaO, like the tiny amount of...
  9. T

    Why does exercise decrease the diuretic effect of caffeine?

    WHat reactions consume so much water in the digestion of ethanol?
  10. ShawnD

    Why is ethanol the only drinkable alcohol?

    People can drink ethanol and not have a problem, but other alcohols like methanol and propanol are very poisonous; why is that?
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