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Sunday, December 28, 2014

Basic Overview Of Alcohol Assessment

By Stacey Burt


Dehydration of liqors is useful since readily converted to an liqor to an alkene. A simple example is the synthesis of cyclohexene by dehydration of cyclohexanol. You can see the action of acid (H2SO4) sulfuric acid which removes the hydroxyl group of liqor, generating the double bond and water (alcohol assessment). The hydroxyl is replaced by a halogen in Appel reaction. Many liqors may be created by fermenting yeast fruit or grain, but only ethanol is produced commercially this way, mainly as a fuel and as a beverage. Other liqors are generally produced as synthetic derivatives of natural gas or oil.

The liqors may be primary, secondary or tertiary, depending on the number of hydrogen atoms substituted on the carbon atom to which they are bound to hydroxyl group. The liqor comes from the Arabic wordof al (determinant) and kuhul meaning 'subtle'. This is because formerly called "spirit" to liqors. For example, "spirits" to ethanol, and "wood spirit" to methanol.

The kit liqor can have various compositions. Ethyl liqor can be completely to 96 degrees, with an additive such as benzalkonium chloride or a substance to give an unpleasant taste. It is what is known as denatured ethyl liqor. Are also used as denaturants diethyl phthalate and methanol, which makes some toxic methylated spirits.

Other compositions: may contain isopropyl liqor, is unfit to drink, but may be more effective for use as a drying. In organic chemistry, an liqor is an organic compound having one of carbons (the latter being tetrahedral) is bonded to a hydroxyl group (-OH). Ethanol (or ethyl liqor) in composition of liqoric beverages is a special case of liqor, but all liqors are not suitable for consumption. In particular, methanol is toxic and lethal in high doses. When liqor is the main function, simply replace the terminal vowel "e" of corresponding alkane by the suffix -ol and indicate the number of carbon atom to which the hydroxyl is attached, although at times when it is not necessary to description, this information is omitted.

If it is not the main function, add the prefix hydroxy- preceded by the carbon atom number where the group is attached. For the conjugate base of liqor, liqorate ion, just replace the terminal vowel "e" by -olate suffix (not to be confused with the suffix -oate characteristic of carboxylate, conjugate base the carboxylic acid).

Phenols, are sometimes referred to as individual liqors in which hydroxyl is bonded to a carbon of a benzene ring. Their reactivity is so different from that of other liqors (here the carbon bearing the OH group is not tetrahedral), phenols are generally classified outside the liqor family.

There is also a group sometimes regarded as a special case of liqors called enols. This is a molecule in which hydroxyl is attached to a carbon of a double bond C equals C (again carbon bearing the -OH group is not tetrahedral). This is actually a tautomeric form of an aldehyde or ketone. The major form is usually the aldehyde or ketone, and not the enol, except in special cases where the enol form is stabilized by mesomerism as phenols.

The fact that the hydroxyl group can also form hydrogen bonds affects the melting and boiling points of liqors. Although the hydrogen bond formed is very weak compared to other types of bonds are formed in large numbers between molecules, forming a collective network which hinders the molecules can escape the state in which they are (solid or liquid), thus increasing their melting and boiling points compared to corresponding alkanes. Furthermore, two points are usually far apart, so are often used as components of antifreeze mixtures. For example, 1,2-ethanediol has a melting point of -16 degrees C and a boiling point of 197 degrees C.




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