Catalog Number
ACMA00016845
Product Name
Benzyl Alcohol
Description
Benzyl alcohol appears as a clear colorless liquid with a pleasant odor. Slightly denser than water. Flash point 194°F. Boiling point 401°F. Contact may irritate skin, eyes, and mucous membranes. May be slightly toxic by ingestion. Used to make other chemicals.;Liquid;Colourless, clear liquid with a faint, aromatic odour;Liquid;Liquid;COLOURLESS LIQUID WITH CHARACTERISTIC ODOUR.;colourless liquid with a slightly pungent, faint aromatic, fruity odour;A clear colorless liquid with a pleasant odor.
Molecular Weight
108.14g/mol
Molecular Formula
C7H8O;C7H8O;C6H5CH₂OH;C6H5CH₂OH;C7H8O
Canonical SMILES
C1=CC=C(C=C1)CO
InChI
InChI=1S/C7H8O/c8-6-7-4-2-1-3-5-7/h1-5,8H,6H2
InChI Key
WVDDGKGOMKODPV-UHFFFAOYSA-N
Boiling Point
401 °F at 760 mm Hg (NTP, 1992);205.3 °C;205.3 °C;205 °C;401°F
Melting Point
4.5 °F (NTP, 1992);-15..2 °C, 258 K, 5 °F;-15.2 °C;Fp -15.2 °;-15.2 °C;-15.2°C;-15 °C;4.5°F
Flash Point
213 °F (NTP, 1992);213 °F (closed cup); 220 °F (open cup);220 °F (105 °C) (open cup);200 °F (93 °C) (closed cup);96 °C (205 °F) (Closed cup);93 °C c.c.;213°F
Density
1.05 at 1515 °F (USCG, 1999);d1515 1.05;1.0419 g/cu cm at 24 °C;Relative density (water = 1): 1.04;1.040-1.050;1.05
Solubility
10 to 50 mg/mL at 70° F (NTP, 1992);0.37 M;Soluble in water, ethanol and ether;42.9 mg/mL at 25 °C;In water, 42,900 mg/L at 25 °C;In water, 35,000 mg/L at 20 °C;Soluble in benzene, methanol, chloroform, ethanol, ether, methanol, chloroform and acetone;One gram dissolves in 25 mL water; one vol dissolves in 1.5 vols of 50% ethyl alcohol; freely soluble in 50% alcohol; miscible with absolute and 94% alcohol, ether, chloroform.;42.9 mg/mL at 25 °C;Solubility in water, g/100ml: 4;slightly soluble in water, soluble in organic solvents, oils;miscible at room temperature (in ethanol)
Application
Benzyl alcohol serves various purposes due to its versatile properties. It is widely used as an antimicrobial preservative in cosmetics, foods, and pharmaceuticals, typically up to a concentration of 2.0% v/v. This colorless liquid with a slight sweet odor acts not only as a preservative but also finds application as a solubilizer and disinfectant at higher concentrations. Benzyl alcohol is also utilized in the formulation of fragrance and flavor materials through esterification, and as a component catalyst for epoxy resins. In pharmaceuticals, its local anesthetic properties are harnessed in specific cough products, ophthalmic solutions, ointments, and dermatological sprays. However, caution is advised when using benzyl alcohol in neonatal applications due to the potential for severe adverse reactions, thus recommending its avoidance in neonatal formulations when possible.
Color/Form
Water-white liquid
Corrosivity
Will attack some plastics
Covalently-Bonded Unit Count
1
Exact Mass
108.057515g/mol
Heat of Vaporization
50.48 kJ/mol at 205.31 °C
Log P
1.1 (LogP);1.10;log Kow = 1.10;1.10;1.1
MeSH Entry Terms
Alcohol, Benzyl;Benzenemethanol;Benzyl Alcohol
Monoisotopic Mass
108.057515g/mol
Other Experimental
Percent in saturated air at 20 °C: 0.02; density of saturated air: 1.0005 (air = 1);Conversion factors: 1 mg/L = 226.1 ppm; 1 ppm = 4.42 mg/cu m at 25 °C, 760 mm Hg;Dielectric constant: 1.66; specific heat at 15-20 °C: 0.5402 cal/g; wt/gal at 20 °C: 9.78 lbs;Heat of fusion: 8.97 kJ/mol at -15.4 °C;Heat capacity: 217.9 J/mol K;Liquid heat capacity = 0.520 BTU/lb-F at 68 °F; Liquid thermal conductivity = 1.088 BTU-in/hr-sq ft-F at 70 °F; Saturated vapor density = 0.00161 lb/cu ft at 180 °F; Ideal gas heat capacity = 0.276 BTU/lb-F at 60 °F;Enthalpies of formation at 298.15 K: -160.7 kJ/mole (liquid); -100.4 kJ/mol (gas). Standard molar entropy at 298.15 K: 217.9 J/mol K;Dielectric constant: 13.0 at 20 °C & 9.5 at 70 °C; dipole moment: 1.67 in benzene at 25 °C;Henry's Law constant = 3.37X10-7 atm-cu m/mole at 25 °C;Hydroxyl radical reaction rate constant= 2.29X10-11 cu cm/molec-sec at 24 °C
Refractive Index
[n]D/20 1,538-1,541;n20D 1.5396;Index of refraction: 1.5396 at 20 °C/D;1.536-1.541
Stability
Oxidizes slowly, therefore remains stable for long time;It is slowly oxidized to benzaldehyde and benzoic acid on exposure to air ... .;Hygroscopic. Stable under recommended storage conditions. Test for peroxide formation before distillation or evaporation. Test for peroxide formation or discard after 1 year.
Vapor Density
3.72 (NTP, 1992) (Relative to Air);3.72 (Air = 1);Relative vapor density (air = 1): 3.7;3.72
Vapor Pressure
0.1 mm Hg at 68 °F ; 1 mm Hg at 136° F (NTP, 1992);0.09 mmHg;0.094 mm Hg at 25 °C;Vapor pressure, Pa at 20 °C: 13.2;0.1 mmHg@68°F
Viscosity
5.474 cP at 25 °C; 2.760 cP at 50 °C; 1.618 cP at 75 °C; 1.055 cP at 100 °C
