Ethanol Ethyl alcohol

Ethanol Ethyl alcohol 83 CoHeO 1-Propanol n-Propyl alcohol 84 C,HsO... 

The heat of combustion of ethanol (ethyl alcohol) is significantly lower than that of the saturated alkanes on a per gram basis. On a per mole basis, ethanol s heat of combustion is lower than those of all the saturated alkanes except methane. 

Methanol (methyl alcohol) Ethanol (ethyl alcohol)... 

Ethanol (ethyl alcohol made from grains) Ethanol (C H OH) is one of many types of alcohol. Grain alcohol can be produced by fermentation of agricultural waste, corn, or other grains. Another method is the hydration of ethylene the reaction of water with ethylene (C H ), a reaction in which the alcohol molecule is formed the water is then split off by heat. 

The additives used in oxygenated gasoline are alcohols and ethers, the most common of which are ethanol (ethyl alcohol grain alcohol) and methyl t-butyl ether (MTBE). Two less commonly used additives are ethyl t-butyl ether (ETBE) and t-amyl methyl ether (TAME). The chemical structures of these four additives are shown in the diagram on page 24. 

Ethanol (ethyl alcohol) has central nervous system depressant properties and is widely used to relieve anxiety and produce sedation. Although some medical practitioners occasionally prescribe an alcoholic beverage for relieving minor anxiety and inducing sleep, individuals frequently self-medicate with ethanol. Many individuals who abuse alcohol may have started using it to relieve symptoms of central nervous system disorders, such as anxiety and depression. 

Ethanol (ethyl alcohol, alcohol) is a simple organic molecule composed of a single hydroxyl group and a short two-carbon aliphatic chain, CH 3CH 2OH. The hydroxyl and ethyl moieties confer both hydrophilic and lipophilic properties on the molecule. Therefore, ethanol is an amphophile, a property important to its pharmacological activity. 

There is evidence that the Greeks, Egyptians, Hebrews, Japanese, Chinese, and Russians made alcoholic beverages thousands of years ago. Alcohol (ethanol, ethyl alcohol, and grain alcohol) is produced by yeast fermentation of sugar in fruits and grains to make wine, beer, or a variety of alcoholic spirits, including gin, vodka, and scotch. 

The most widely known alcohol is ethyl alcohol, simply because it is the alcohol in alcoholic drinks. It is also known as grain alcohol, or by its proper name, ethanol. Ethyl alcohol is a colorless, volatile liquid with a characteristic odor and a pungent taste. It has a flash point of 55°F, is classified as a depressant drug, and is toxic when ingested in large quantities. Its molecular formula is C2H,OH. In addition to its presence in alcoholic beverages, ethyl alcohol has many industrial and medical uses, such as a solvent in many manufacturing processes, as antifreeze, antiseptics, and cosmetics. 

Alcohols, R—OH CH3CH2—OH ethanol (ethyl alcohol) Ethers, R—0—R CH3CH2—0—ch2ch3 ethoxyethane (diethyl ether) Halides, R—X CH3CH2—Br bromoethane (ethyl bromide) Aldehydes, RCHO ch3 C—0 / H ethanal (acetaldehyde) Ketones, R2CO CH3 C=0 / ch3 2-propanone (acetone)... 

The organic liquids in Table 1 include ethanol (ethyl alcohol), which is a common solvent and chemical reagent. During normal exposure in the laboratory such a small amount of ethanol is inhaled or absorbed through the skin that it would correspond to only a miniscule taste of the liquid. However, denaturants in "lab alcohol" can modify its toxicity. Denatured alcohol often contains about 5% of an additive such as benzene or methanol. Of the twenty lab manuals examined, eighteen use ethanol. The other two specified methanol instead. In general, methanol is considerably more toxic than ethanol. 

One of the research projects that von Hoffman suggested to his students was an investigation of the possibility of producing quinine from coal tar. Quinine is a valuable drug for the treatment of malaria. Perkin decided to take on this task and tried to convert both allyl toluidine and aniline (coal tar derivatives) into quinine. His experiments failed, but he noticed that an ugly black sludge was left behind on the bottom of the reaction flask in the aniline experiment. Curious about the residue, he added ethanol (ethyl alcohol) to the flask. A beautiful, deep purple solution formed when the sludge dissolved in the alcohol. 

Ethanol, ethyl alcohol (mp, -114°C bp, 78°C), is a clear, colorless liquid widely used as a beverage ingredient, synthetic chemical, solvent, germicide, antifreeze, and gasoline additive. It is produced by the fermentation of carbohydrates or by the hydration of ethylene, as shown by the... 

Thus it is impossible to set a time when production of ethanol for beverage purposes began. Most alcohol in undeveloped countries is still for beverages. Aside from beverage production, ethanol (ethyl alcohol or "alcohol ) is made for industrial purposes by both synthetic and fermentation processes. 

---