2-ETHYL-2-HEXENAL Chemical Properties

Melting point:

3.5°C (estimate)

Boiling point:

175°C(lit.)

Density 

0,85 g/cm³

refractive index 

1.4490 to 1.4530

FEMA 

4612 | 2-ETHYL-2-HEXENAL

Flash point:

68°C

storage temp. 

Inert atmosphere,Store in freezer, under -20°C

Odor

powerful odor

Stability:

Stable. Combustible. Incompatible with strong oxidizing agents.

LogP

2.66

EPA Substance Registry System

2-Ethyl-2-hexenal (645-62-5)

Safety Information

Risk Statements 

36/37/38

Safety Statements 

26-36/37/39

RIDADR 

1760

RTECS 

MP6300000

Hazardous Substances Data

645-62-5(Hazardous Substances Data)

2-ETHYL-2-HEXENAL Usage And Synthesis

Chemical Properties

colourless liquid with a strong smell

Chemical Properties

2-Ethyl-3-propyl acrolein is a colorless or yellowish liquid with a sharp, powerful, irritating odor

Uses

Insecticide, organic synthesis (intermediate), warning agents, and leak detectors.

Definition

ChEBI: 2-ethyl-2-hexenal is a monounsaturated fatty aldehyde that is hex-2-enal substituted by an ethyl group at position 2. It has a role as a plant metabolite, a human metabolite and a flavouring agent. It is a monounsaturated fatty aldehyde and an enal.

Synthesis Reference(s)

Tetrahedron Letters, 15, p. 959, 1974 DOI: 10.1016/S0040-4039(01)82378-9

General Description

Yellow liquid. Floats on water.

Air & Water Reactions

Insoluble in water.

Reactivity Profile

2-ETHYL-2-HEXENAL is an aldehyde. Aldehydes are frequently involved in self-condensation or polymerization reactions. These reactions are exothermic; they are often catalyzed by acid. Aldehydes are readily oxidized to give carboxylic acids. Flammable and/or toxic gases are generated by the combination of aldehydes with azo, diazo compounds, dithiocarbamates, nitrides, and strong reducing agents. Aldehydes can react with air to give first peroxo acids, and ultimately carboxylic acids. These autoxidation reactions are activated by light, catalyzed by salts of transition metals, and are autocatalytic (catalyzed by the products of the reaction). The addition of stabilizers (antioxidants) to shipments of aldehydes retards autoxidation. 2-ETHYL-2-HEXENAL will react with oxidants.

Hazard

Toxic by inhalation and ingestion; strong irritant.

Health Hazard

Vapor is irritating. Contact produces skin and eye irritation.

Flammability and Explosibility

Not classified

Potential Exposure

Those workers involved in organic synthesis operations and use of this flammable and toxic aldehyde warning agent.v

Shipping

UN1988 Aldehydes, flammable, toxic, n.o.s., Hazard Class: 3; Labels: 3-Flammable liquid, 6.1-Poisonous materials, Technical Name Required

Incompatibilities

Aldehydes are frequently involved in self-condensation or polymerization reactions. These reactions are exothermic; they are often catalyzed by acid. Aldehydes are readily oxidized to give carboxylic acids. Flammable and/or toxic gases are generated by the combination of aldehydes with azo, diazo compounds, dithiocarbamates, nitrides, and strong reducing agents. Aldehydes can react with air to give first peroxo acids, and ultimately carboxylic acids. These autoxidation reactions are activated by light, catalyzed by salts of transition metals, and are autocatalytic (catalyzed by the products of the reaction). The addition of stabilizers (antioxidants) to shipments of aldehydes retards autoxidation. Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides, caustics, ammonia, and amines

Waste Disposal

Incineration, or dissolve in flammable solvent and spray into incinerator containing afterburner

2-ETHYL-2-HEXENAL(645-62-5)Related Product Information

• Diethylzinc
• Cyclobutanone
• Acrolein
• Allyl alcohol
• 2-Ethyl-2-hexenal semicarbazone
• 2-Isopropyl-5-methyl-2-hexenal
• 2-ETHYL-2-HEXENAL,TRANS-2-ETHYL-2-HEXENAL
• 2-Ethyl-2-hexenal phenyl hydrazone
• 4-(2,4,6-CYCLOHEPTATRIENYL)-2-ETHYL-2-HEXENAL(2,4-DINITROPHENYL)HYDRAZONE
• 2-allyl-2-ethylhex-3-enal