Benzyl alcohol (phenylcarbinol) is an organic compound , the simplest aromatic alcohol , C 6 H 5 CH 2 OH.
| Benzyl alcohol | |
|---|---|
| Are common | |
| Chem. formula | C 7 H 8 O |
| Physical properties | |
| Molar mass | 108.14 g / mol |
| Density | 1,045 g / cm³ |
| Thermal properties | |
| T. melt. | -15 ° C |
| T. Kip. | 205 ° C |
| Chemical properties | |
| pK a | 15.4 |
| Classification | |
| Reg. CAS number | 100-51-6 |
| Pubchem | |
| Reg. EINECS number | |
| SMILES | |
| Inchi | |
| Codex Alimentarius | |
| RTECS | |
| CHEBI | |
| Chemspider | |
Content
Properties
Colorless liquid with a faint pleasant odor; t boiling point 205,8 ° C; density of 1045.5 kg / m³ (1.0455 g / cm³) at 20 ° C. Benzyl alcohol is highly soluble in organic solvents and liquid SO 2 and NH 3 , 4 g of benzyl alcohol is dissolved in 100 g of water.
Chemical Properties
Interaction with alkali and alkaline earth metals:
- {\ displaystyle {\ mathsf {2C_ {6} H_ {5} CH_ {2} OH + 2Na \ rightarrow 2C_ {6} H_ {5} CH_ {2} ONa + H_ {2}}}
sodium benzylate is formed
Interaction with phosphorus trichloride - benzyl chloride is formed
Interaction with acetic anhydride - benzyl ester of acetic acid ( benzyl acetate ) is formed:
Being in nature
In the free state or in the form of benzoic esters , salicylic and acetic acids, benzyl alcohol is contained in essential oils , such as jasmine , clove , Peruvian balsam , etc.
Getting
Get benzyl alcohol saponification of benzyl chloride mainly in the presence of alkali :
as well as the action of alkali on a mixture of benzoic aldehyde and formaldehyde :
(see Cannizzaro Reaction ).
Application
Benzyl alcohol is used in perfumery , as well as a solvent for varnishes . Also used for disinfection of oil solutions of drugs for intramuscular administration in pharmacology.
Registered as a food additive E1519 .
Literature
- Chemical Encyclopedia / Redkol .: Knunyants I.L. et al. - M .: Soviet Encyclopedia, 1988. - Vol. 1 (Abl-Dar). - 623 s.