Structure of phenylmethanol
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Benzyl alcohol structure
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Image of Structure of phenylmethanolImage of Structure of phenylmethanol
Image of Structure of phenylmethanolImage of Structure of phenylmethanol
Image of Structure of phenylmethanolImage of Structure of phenylmethanol
Image of Structure of phenylmethanol
Image of Structure of phenylmethanolImage of Structure of phenylmethanol
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Benzyl alcohol with the C6H5CH2OH formula is an aromatic alcohol. The benzyl group is also abbreviated to “Bn” (not to be confused with “Bz” used for benzoyl), so BnOH is referred to as benzyl alcohol.
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ChemistryAlcohols, Phenols and EthersBenzyl Alcohol
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Benzyl Alcohol (C6H5CH2OH)
What is Benzyl Alcohol?
Benzyl alcohol is an organic compound with the chemical formula C6H5CH2OH. The IUPAC name of this compound is phenyl methanol. At room temperature, benzyl alcohol exists as a colourless liquid that has a mildly aromatic smell. When this aromatic alcohol is deprotonated, the resulting anion is called a benzylate.
This compound is not very soluble in water. However, it forms miscible mixtures with diethyl ether and other alcohols. Many plants are known to naturally produce C6H5CH2OH. The essential oils extracted from jasmine, ylang-ylang, and hyacinth contain some amount of benzyl alcohol.
Structure
This compound consists of a hydroxyl group attached to a methyl group, which is in turn attached to an aromatic ring. The structure of a C6H5CH2OH molecule is illustrated below.
Benzyl Alcohol
The pi electrons in the benzene ring are delocalized due to resonance. Essentially, the structure of a benzyl alcohol molecule is that of a toluene molecule in which one of the hydrogen atoms has been replaced by a hydroxyl group.
Preparation
The use of sodium hydroxide in the hydrolysis of benzyl chloride yields benzyl alcohol and sodium chloride as the products. The chemical equation for this reaction is given by:
NaOH + C6H5CH2Cl → NaCl + C6H5CH2OH
An alternate method of preparing this compound involves the Grignard reaction between formaldehyde (H-CHO) and phenylmagnesium bromide (Ph-Mg-Br).
Properties of C6H5CH2OH
Chemical Data
Benzyl Alcohol C6H5CH2OH
Molar Mass 108.14 grams per mole
Density 1.044 grams per cubic centimetre
Melting Point 257.9 K (-15.2oC)
Boiling Point 478.4 K (205.3oC)
Physical Properties
Under standard conditions, benzyl alcohol is a colourless, slightly aromatic liquid.
Its solubility in water corresponds to 3.5g/100mL at 20oC and 4.29g/100mL at 25o
This compound is soluble in several organic solvents such as benzene, methanol, acetone, and ether.
Chemical Properties
The reaction between carboxylic acids and benzyl alcohol leads to the formation of esters.
This compound undergoes a Ritter reaction with acrylonitrile to yield N-benzyl acrylamide.
When deprotonated, C6H5CH2OH yields a benzylate anion.
What are the Uses of Benzyl Alcohol?
This compound is widely used as a solvent for epoxy resin coatings, inks, and paints. Some other applications of benzyl alcohol are listed below.
Does benzyl alcohol kill bacteria?
In intravenous liquids which are drawn more than once from the same bottle or container, benzyl alcohol is most commonly present. Once the seal of the jar has been breached, its purpose is to slow bacterial growth.
Is benzyl alcohol an alcohol?
Benzyl alcohol with the C6H5CH2OH formula is an aromatic alcohol. The benzyl group is also abbreviated to “Bn” (not to be confused with “Bz” used for benzoyl), so BnOH is referred to as benzyl alcohol. Benzyl alcohol is a colourless liquid with a good floral fragrance that is mild.
What’s the difference between benzyl alcohol and isopropyl alcohol?
Benzyl alcohol is a colourless liquid used as a bacteriostatic and topical local anaesthetic in injection solutions. Isopropyl alcohol is a clear, volatile, colourless liquid used as an antiseptic solvent and disinfectant, commonly known as isopropanol.
Is benzyl alcohol an acid or base?
The family of organic compounds known as benzyl alcohols contains benzyl alcohol, also known as alpha-toluenol or benzenemethanol. Chemical compounds forming the substructure of phenylmethanol are these. Benzyl alcohol is a (based on its pKa) highly mild simple (essentially neutral) compound.
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