Methyl salicylate

  • 2-Hydroxybenzoic acid methyl ester
  • Methoxybenzoic Acid
  • Sweet birch oil
  • Wintergreen oil
Formula
C8H8O3
Structure
Description
Colorless yellowish or reddish liquid with odor of wintergreen.
Uses
Oil: in fern and cypress type perfumes & in toothpaste.

Registry Numbers and Inventories.
CAS
119-36-8
EC (EINECS/ELINCS)
204-317-7
R 22 36/38
S 26 36/37/39
RTECS
VO4725000
RTECS class
Mutagen; Reproductive Effector; Human Data; Primary Irritant
Merck
12,6200
Beilstein/Gmelin
971516
Beilstein Reference
4-10-00-00143
EPA OPP
76601
Swiss Giftliste 1
G-2532
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C8H8O3
Formula mass
152.15
Melting point, °C
100 - 101
Boiling point, °C
432
Vapor pressure, mmHg
0.03
Vapor density (air=1)
5.24
Evaporization number
1 (butyl acetate=1)
Density
1.1969 g/cm3 (0 C)
Solubility in water
Slightly soluble
Viscosity
1.54 cp (25 C)
Surface tension
44.2 g/s2 (-232 C)
Refractive index
1.53434 (12 C)
pKa/pKb
9.8 (pKa)
Partition coefficient, pKow
2.55
Heat of vaporization
46.70 kJ/mol
Heat of combustion
-3763 kJ/mol

Hazards and Protection.
Storage
Keep from contact with oxidizing materials. Store in a cool, dry, well-ventilated area away from incompatible substances.
Handling
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Ground and bond containers when transferring material. Do not get on skin or in eyes. 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 protective 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
Avoid runoff into storm sewers and ditches which lead to waterways. Clean up spills immediately, using the appropriate protective equipment. Remove all sources of ignition. Absorb spill using an absorbent, non-combustible material such as earth, sand, or vermiculite. Provide ventilation.
Stability
Stable at room temperature in closed containers under normal storage and handling conditions.
Incompatibilities
Strong oxidizing agents, strong bases.
Decomposition
Carbon monoxide, carbon dioxide, salicyclic acid.

Fire.
Flash Point,°C
96
Autoignition, °C
455
Upper exp. limit, %
7.2
Lower exp. limit, %
1.2
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Use water spray to keep fire-exposed containers cool. Vapors may be heavier than air. They can spread along the ground and collect in low or confined areas. Containers may explode when heated. Extinguishing media: Water or foam may cause frothing. Use carbon dioxide or dry chemical. Cool containers with flooding quantities of water until well after fire is out.
Fire potential
This chemical is combustible.
Health
2
 
Flammability
1
 
 
Reactivity
0
 

Health.
Poison_Class
4
Exposure effects
May cause liver and kidney damage. Repeated exposure may cause metabolic disturbances.
   Ingestion
May cause nausea and vomiting. May be harmful if swallowed. Systemic effects of exposure include initial stimulation and later central nervous system depression. Symptoms include convulsions, respiratory failure, cardiac collapse, and possible death.
   Inhalation
Causes respiratory tract irritation. Irritation may lead to chemical pneumonitis and pulmonary edema. May cause effects similar to those described for ingestion. May cause lung damage.
   Skin
Causes moderate skin irritation. May be absorbed through the skin in harmful amounts.
   Eyes
May cause eye irritation.

First aid
 
   Ingestion
Do NOT induce vomiting. If victim is conscious and alert, give 2-4 cupfuls of milk or water. Get medical aid immediately. Call a poison control center.
   Inhalation
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid. DO NOT use mouth-to-mouth respiration.
   Skin
Immediately flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Get medical aid if irritation develops or persists. 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.

Transport.
USCG CHRIS Code
MES
 
IMO Chemical Code
17
IMO Pollution Category
B
IMO Hazard code
P