10-Undecenoic acid

  • Undecylenicacid
Formula
CH2=CH(CH2)8COOH
Structure
Description
White crystal mass or colorless to yellowish liquid, depending on room temperature and purity. The characteristic odor is suggestive of perspiration and has been described as fruity-rosy.
Uses
Used in perfumes, flavouring agents and plastics, and as a modifying agent in plasticizers and lubricant additives; weed killer and defoliant

Registry Numbers and Inventories.
CAS
112-38-9
EC (EINECS/ELINCS)
203-965-8
EC Class
irritant, dangerous for the environment
R 36/38
RTECS
YQ2975000
RTECS class
Agricultural Chemical and Pesticide; Primary Irritant
Merck
12,9983
Beilstein/Gmelin
1762631
Swiss Giftliste 1
G-2509
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C11H20O2
Formula mass
184.28
Melting point, °C
24
Boiling point, °C
300
Saturation Concentration
Very low at normal temperatures
Evaporization number
Probably very low at normal temperatures
Density
0.9100 g/cm3
Solubility in water
Insoluble
Refractive index
1.4486 (20 C)

Hazards and Protection.
Storage
Store in a cool, dry place. Store in a tightly closed container.
D2B
Handling
Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes. Use only in a chemical fume hood.
Protection
Wear appropriate protective eyeglasses or chemical safety goggles, protective gloves and clothing to prevent 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
Vacuum or sweep up material and place into a suitable disposal container.
Disposal code
4
Incompatibilities
Bases - oxidizing agents - reducing agents.
Decomposition
Carbon monoxide, carbon dioxide.

Fire.
Flash Point,°C
146
Autoignition, °C
275
Fire fighting
Wear approved SCBA in full pressure-demand and full protective gear. This material in sufficient quantity as dust is capable of creating a dust explosion. In case of fire use water spray, dry chemical, carbon dioxide, or chemical foam.

Health.
Poison_Class
3
Exposure effects
   Ingestion
The toxicological properties of this substance have not been fully investigated.
   Inhalation
May cause respiratory tract irritation. The toxicological properties of this substance have not been fully investigated.
   Skin
Causes severe skin irritation. May cause skin sensitization, an allergic reaction, which becomes evident upon re-exposure to this material. Substance is rapidly absorbed through the skin.
   Eyes
Causes eye irritation.

First aid
 
   Ingestion
Get medical aid. Wash mouth out with water.
   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. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.
   Eyes
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower lids. Get medical aid.

Transport.
HS Code
2916 19 10