Product Identification

Product Name

cis-9-Octadecenoic acid

Synonyms

(Z)-Octadec-9-enoic acid
9-Octadecanoic acid
Pamolyn

CAS

112-80-1

Formula

C18H34O2

Molecular Weight

282.47000000000003

EINECS

204-007-1

RTECS

RG2275000

RTECS Class

Tumorigen; Mutagen; Primary Irritant

Merck

12,6965

Beilstein/Gmelin

1726542

Beilstein Reference

4-02-00-01641

Physical and Chemical Properties

Appearance

Colorless to pale yellow liquid with a mild odor.

Solubility in water

Insoluble

Boiling Point

286

Vapor Pressure

0.016 (121 C)

Density

0.8946 g/cm3

pKa/pKb

5.02 (pKa)

Heat Of Vaporization

61.97 kJ/mol

Heat Of Combustion

-11229 kJ/mol

Usage

Adjuvant.

Vapor Density

9.7

Refractive Index

1.46214 (11.8 C)

First Aid Measures

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.

Handling and Storage

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.

Hazards Identification

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.

Exposure Controls/Personal Protection

Personal 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.

Poison Class

-

Fire Fighting Measures

Flash Point

189

Autoignition

363

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.

Upper exp. limit

2.9

Lower exp. limit

.4

Fire Potential

This chemical is combustible.

Accidental Release Measures

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 and Reactivity

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.