Benzyl alcohol

  • Hydroxytoluene
  • Phenolcarbinol
  • Penzenecarbinol
  • (Hydroxymethyl)benzene
  • Phenylmethanol
  • Benzenemethanol
Formula
C6H5CH2OH
Structure
Description
Colorless liquid, pleasant, fruity odor. Hygroscopic.
Uses
Manufacture of other benzyl compound, solvent for cellulose acetate, in perfumery and in flavoring, solvent for gelatin, casein (when hot), and shellac, in microscopy as embedding material.

Registry Numbers and Inventories.
CAS
100-51-6
EC (EINECS/ELINCS)
202-859-9
EC Index Number
603-057-00-5
EC Class
Harmful
R 20/22
RTECS
DN3150000
RTECS class
Tumorigen; Mutagen; Reproductive Effector; Natural Product; Primary Irritant
UN (DOT)
1987
Merck
13,1126
Beilstein/Gmelin
878307
Beilstein Reference
4-06-00-02222
EPA OPP
9502
Swiss Giftliste 1
G-1250
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C7H8O
Formula mass
108.14
Melting point, °C
-15.3
Boiling point, °C
205
Vapor pressure, mmHg
0.15 (25 C)
Vapor density (air=1)
3.72
Saturation Concentration
200 ppm at 25 C (calculated)
Evaporization number
1.8 (diethyl ether = 1)
Odor Threshold Odor threshold 5.5 ppm
Critical temperature
442
Critical pressure
42.44
Density
1.050 g/cm3 (20 C)
Solubility in water
35 g/L
Viscosity
4.43 cp (29.85 C)
Surface tension
39.0 g/s2
Refractive index
1.54035 (20 C)
Dipole moment
1.7 D (20 C)
Dielectric constant
13.1 (25 C)
Partition coefficient, pKow
1.10
Heat of fusion
9.0 kJ/mol
Heat of vaporization
64.82 kJ/mol
Heat of combustion
-3748 kJ/mol

Hazards and Protection.
Storage
Protect against physical damage. Outside or detached storage is preferred. Inside storage should be in a standard flammable liquids storage room or cabinet. Separate from oxidizing materials. Storage and use areas should be No Smoking areas
B3 D2B
Handling
Wash thoroughly after handling. Wash hands before eating. Use with adequate ventilation. Avoid breathing dust, vapor, mist, or gas. Do not get in eyes, on skin, or on clothing. Keep container tightly closed. Do not ingest or inhale.
Protection
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
Respirators
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Small spills/leaks
Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container. Clean up spills immediately, using the appropriate protective equipment. Provide ventilation.
Stability
Stable under ordinary conditions of use and storage. Undergoes slow oxidation in the presence of air or oxygen to form benzaldehyde and benzoic acid.
Incompatibilities
Strong oxidizing agents, acids, plastics, sulfuric acid, moisture, hydrogen bromide gas + iron at >100C(exothermic polymerization).
Decomposition
Carbon monoxide, carbon dioxide, acrid smoke and fumes.

Fire.
Flash Point,°C
93
Autoignition, °C
435
Upper exp. limit, %
13
Lower exp. limit, %
1.3
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Will burn if involved in a fire. Extinguishing media: Use dry chemical, carbon dioxide, or alcohol-resistant foam. Water spray may cause frothing.
Fire potential
Flammable liquid.
Hazards
Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion hazard indoors, outdoors or in sewers.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.
Health
2
 
Flammability
1
 
 
Reactivity
0
 

Health.
Poison_Class
4
Exposure effects
Prolonged or repeated skin contact may cause dermatitis.
   Ingestion
Large doses may cause sore throat, coughing, labored respiration, dizziness, dullness, abdominal pain, vomiting, central nervous system depression, convulsions, and death due to respiratory failure.
   Inhalation
Causes irritation to the respiratory tract. Symptoms may include coughing, shortness of breath. May be absorbed into the bloodstream with symptoms similar to ingestion.
   Skin
Causes skin irritation. Prolonged and/or repeated contact may cause defatting of the skin and dermatitis. Causes redness and pain. May be harmful if absorbed through the skin. Contact with the skin may cause a local anesthetic effect.
   Eyes
Causes severe eye irritation. Causes redness and pain.

First aid
 
   Ingestion
Do NOT induce vomiting. If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid.
   Inhalation
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
   Skin
Get medical aid. Immediately flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
   Eyes
Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.

Transport.
UN number
1987
Response guide
Hazard class
3
Packing Group
I; II; III
 
USCG CHRIS Code
BAL
 
21 Phenols, Cresols
HS Code
2906 21 00
 
Std. Transport #
4915540
 
IMO Pollution Category
C
IMO Hazard code
P