2-Ethyl-2-hexenal

  • 2-Ethyl-3-propylacrolein
  • 3-Formylhept-3-ene
  • 2-Ethyl-2-hexen-1-al
  • CKB 1364
Formula
C8H14O
Structure
Description
Yellow liquid.
Uses
Manufacture of insecticides, organic synthesis (intermediate), in warning agents & leak detectors.

Registry Numbers and Inventories.
CAS
645-62-5
EC (EINECS/ELINCS)
211-448-3
RTECS
MP6300000
RTECS class
Primary Irritant
UN (DOT)
1988
Beilstein/Gmelin
1742488
Beilstein Reference
3-01-00-03012
Swiss Giftliste 1
G-3282
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C8H14O
Formula mass
126.22
Melting point, °C
202
Boiling point, °C
175
Vapor pressure, mmHg
1.2 (25 C)
Critical temperature
366
Critical pressure
28.7
Density
0.8506 g/cm3 (20 C)
Solubility in water
Insoluble
Surface tension
28.2 g/s2
Refractive index
1.4523 (20 C)
Partition coefficient, pKow
2.66
Heat of vaporization
41.1 kJ/mol
Heat of combustion
-4530 kJ/mol

Hazards and Protection.
Storage
Keep in a cool, dry, dark location in a tightly sealed container or cylinder. Keep away from incompatible materials, ignition sources and untrained individuals. Secure and label area. Protect containers/cylinders from physical damage.
Handling
All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.
Protection
Wear appropriate protective gloves, clothing and goggles.
Respirators
Wear positive pressure self-contained breathing apparatus (SCBA).
Small spills/leaks
ELIMINATE all ignition sources (no smoking, flares, sparks or flames in immediate area). Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Stop leak if you can do it without risk. Prevent entry into waterways, sewers, basements or confined areas. Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers. DO NOT GET WATER INSIDE CONTAINERS.
Stability
Reactive at high temperature or pressure.
Incompatibilities
Flammable and/or toxic gases are generated by the combination with azo, diazo compounds, dithiocarbamates, nitrides, and strong reducing agents Can react with air to give first peroxo acids, and ultimately carboxylic acids.

Fire.
Flash Point,°C
53
Autoignition, °C
200
Fire fighting
Fire Extinguishing Agents: Alcohol foam, dry chemical or carbon dioxide
Fire potential
May burn but does not ignite readily.
Hazards
When heated, vapors may form explosive mixtures with air: indoors, outdoors, and sewers explosion hazards. May polymerize explosively when heated or involved in a fire. Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated. Runoff may pollute waterways. Substance may be transported in a molten form.
Combustion products
Fire will produce irritating, corrosive and/or toxic gases.
Health
2
 
Flammability
2
 
 
Reactivity
1
 

Health.
Poison_Class
4
Exposure effects
   Ingestion
See inhalation.
   Inhalation
May be fatal. May cause irritatior or burns. Vapors may cause dizziness or suffocation.
   Skin
See inhalation.
   Eyes
See inhalation.

First aid
 
   Ingestion
DO NOT INDUCE VOMITING. If the victim is conscious and not convulsing, give 1 or 2 glasses of water to dilute the chemical and IMMEDIATELY call a hospital or poison control center. Be prepared to transport the victim to a hospital if advised by a physician.
   Inhalation
IMMEDIATELY leave the contaminated area; take deep breaths of fresh air. If symptoms (such as wheezing, coughing, shortness of breath, or burning in the mouth, throat, or chest) develop, call a physician and be prepared to transport the victim to a hospital. Provide proper respiratory protection to rescuers entering an unknown atmosphere. Whenever possible, Self-Contained Breathing Apparatus (SCBA) should be used.
   Skin
IMMEDIATELY flood affected skin with water while removing and isolating all contaminated clothing. Gently wash all affected skin areas thoroughly with soap and water. If symptoms such as redness or irritation develop, IMMEDIATELY call a physician and be prepared to transport the victim to a hospital for treatment.
   Eyes
First check the victim for contact lenses and remove if present. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center. Do not put any ointments, oils, or medication in the victim's eyes without specific instructions from a physician. IMMEDIATELY transport the victim after flushing eyes to a hospital even if no symptoms (such as redness or irritation) develop.

Transport.
UN number
1988
Response guide
Hazard class
3
Packing Group
I; II; III
 
USCG CHRIS Code
EPA
 
IMO Chemical Code
17
IMO Pollution Category
A
IMO Hazard code
S/P