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  • Acetic acid - New World Encyclopedia
    Acetic acid is the solvent of choice when reducing an aryl nitro-group to an aniline using palladium-on-carbon Glacial acetic acid is used in analytical chemistry for the estimation of weakly alkaline substances such as organic amides Glacial acetic acid is a much weaker base than water, so the amide behaves as a strong base in this medium
  • Azeotrope - New World Encyclopedia
    Distilling the solution to dry acetic acid is therefore economically impractical But ethyl acetate forms an azeotrope with water that boils at 70 4°C By adding ethyl acetate as an entrainer, it is possible to distill away the azeotrope and leave nearly pure acetic acid as the residue Why azeotropes exist
  • Vinegar - New World Encyclopedia
    Acetic acid, also known as ethanoic acid, is an organic chemical compound with the formula CH 3 COOH It is one of the simplest carboxylic acids Though carboxylic acids are weak acids, they are stronger than the alcohols (-OH) from which they are derived, in part as a result of the electron-withdrawing power of their second oxygen atom (the
  • Ethyl acetate - New World Encyclopedia
    Ethyl acetate is an organic compound that is an ester derived from the combination of ethanol and acetic acid Its chemical formula may be written as CH 3 CH 2 OC(O)CH 3 or CH 3 CO 2 C 2 H 5, and chemists often abbreviate its name as EtOAc It is a colorless liquid with a characteristic smell that is slightly sweet and fruity
  • Acid - New World Encyclopedia
    Common weak acids are nitrous acid (HNO 2), hydrofluoric acid (HF), and acetic acid (CH 3 CO 2 H) For example, the K a value for acetic acid is 1 8 x 10-5 Note on terms used: The terms "hydrogen ion" and "proton" are used interchangeably; both refer to H + In aqueous solution, the water is protonated to form hydronium ion, H 3 O + (aq)
  • Acetaldehyde - New World Encyclopedia
    In the liver, the enzyme alcohol dehydrogenase converts ethanol into acetaldehyde, which is then further converted into harmless acetic acid by acetaldehyde dehydrogenase The last steps of alcoholic fermentation in bacteria , plants , and yeast involve the conversion of pyruvate into acetaldehyde by the enzyme pyruvate decarboxylase, followed
  • Acetylcholine - New World Encyclopedia
    Acetylcholine is an ester of acetic acid and choline, with the chemical formula CH 3 CO O CH 2 CH 2 N + (CH 3) 3 This structure is reflected in the systematic name, 2-acetoxy-N,N,N-trimethylethanaminium Acetylcholine (ACh) was first identified in 1914, by Henry Hallett Dale for its actions on heart tissue
  • Acid dye - New World Encyclopedia
    An acid dye is a type of dye that is applied from an acidic solution In the home or art studio, the acid used in the dyebath is often vinegar (acetic acid) or citric acid In textiles, acid dyes are effective on protein fibers—particularly animal hair fibers such as wool, alpaca, and mohair They are also useful for dyeing silk


















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