Oleic acid

  • Pamolyn
  • 9-Octadecanoic acid
Formula
C18H34O2
Structure
Description
Colorless to pale yellow liquid with a mild odor.
Uses
Adjuvant

Registry Numbers and Inventories.
CAS
112-80-1
EC (EINECS/ELINCS)
204-007-1
RTECS
RG2275000
RTECS class
Tumorigen; Mutagen; Primary Irritant
Merck
12,6965
Beilstein/Gmelin
1726542
Beilstein Reference
4-02-00-01641
EPA OPP
31702
Swiss Giftliste 1
G-3700
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C18H34O2
Formula mass
282.47
Boiling point, °C
286
Vapor pressure, mmHg
0.016 (121 C)
Vapor density (air=1)
9.7
Density
0.8946 g/cm3
Solubility in water
Insoluble
Viscosity
164.20 cp (150 C)
Surface tension
32.8 g/s2 at 20 C
Refractive index
1.46214 (11.8 C)
pKa/pKb
5.02 (pKa)
Heat of fusion
39.6 kJ/mol
Heat of vaporization
61.97 kJ/mol
Heat of combustion
-11229 kJ/mol

Hazards and Protection.
Storage
Store in a cool, dry, well-ventilated area away from incompatible substances. No special precautions indicated. Absorbs oxygen from the air and will darken upon exposure.
Handling
Wash thoroughly after handling. Wash hands before eating. Remove contaminated clothing and wash before reuse. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation. Use with adequate ventilation. Avoid contact with air and sunlight.
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: Glove protection is not normally required. Clothing: Protective garments not normally required.
Respirators
A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant a respirator's use.
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 under normal temperatures and pressures.
Incompatibilities
Strong oxidizing agents, perchloric acid, powdered aluminum.
Decomposition
Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide.

Fire.
Flash Point,°C
189
Autoignition, °C
363
Upper exp. limit, %
2.9
Lower exp. limit, %
0.4
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. Extinguishing media: Use agent most appropriate to extinguish fire. In case of fire use water spray, dry chemical, carbon dioxide, or appropriate foam.
Fire potential
This chemical is combustible.
Health
1
 
Flammability
1
 
 
Reactivity
0
 

Health.
Poison_Class
-
Exposure effects
   Ingestion
May cause irritation of the digestive tract. Low hazard for usual industrial handling.
   Inhalation
May cause respiratory tract irritation. Low hazard for usual industrial handling.
   Skin
May cause skin irritation.
   Eyes
May cause eye irritation.

First aid
 
   Ingestion
Never give anything by mouth to an unconscious person. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water. Wash mouth out with water. Get medical aid if irritation or symptoms occur.
   Inhalation
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid if cough or other symptoms appear.
   Skin
Get medical aid if irritation develops or persists. Wash clothing before reuse. Flush skin with plenty of soap and water.
   Eyes
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. If irritation develops, get medical aid.

Transport.
USCG CHRIS Code
OLA
 
IMO Chemical Code
18
IMO Pollution Category
D