14919-01-8

Basic information

• Product Name: trans-3-Octene
• Synonyms: 3-Octene,(E)- (8CI); (E)-3-Octene; NSC 95418; trans-3-Octene; g-trans-Octene
• CAS NO: 14919-01-8
• Molecular Formula: C₈H₁₆
• Molecular Weight: 0
• EINECS: 238-990-3
• Mol File: 14919-01-8.mol
• Article Data: 110

Chemical Properties

• Boiling Point: 120.9°Cat760mmHg
• Flash Point: 15.1°C
• Appearance: /
• Density: 0.727g/cm³
• Vapor Pressure: 17.9mmHg at 25°C
• Refractive Index: 1.421
• CAS DataBase Reference: trans-3-Octene(CAS DataBase Reference)
• NIST Chemistry Reference: trans-3-Octene(14919-01-8)
• EPA Substance Registry System: trans-3-Octene(14919-01-8)

Safety Data

• Statements: R11:Highly flammable.; R65:Harmful: may cause lung damage if swallowed.
• Safety Statements: S16:Keep away from sources of ignition - No smoking.; S33:Take precautionary measures against static discharges.
• Hazardous Substances Data: 14919-01-8(Hazardous Substances Data)

Usage

General Description

Trans-3-octene is a colorless liquid hydrocarbon with the molecular formula C8H16. It is an organic compound classified as an alkene and is commonly used as a building block and intermediate in the production of various chemicals, such as plastics, synthetic lubricants, and fragrances. Its chemical structure consists of a chain of eight carbon atoms with a double bond between the third and fourth carbon atoms. Trans-3-octene is primarily produced through the catalytic dehydrogenation of octane or by the metathesis reaction of butene. It is known for its mild, sweet odor and is considered to be relatively stable under normal conditions. However, it may react vigorously with strong oxidizing agents and is incompatible with strong acids and bases. Its main applications include its use as a monomer in the production of polyethylene, which is used in various plastic products, and as a component in the synthesis of specialized organic compounds.

InChI:InChI=1/C8H16/c1-3-5-7-8-6-4-2/h5,7H,3-4,6,8H2,1-2H3

Upstream product

• 693-03-8 n-butyl magnesium bromide 
• 28832-55-5 2-Chlorobutanal 
• 111-65-9 octane 
• 111-87-5 octanol 
• 589-98-0 rac-3-octanol 
• 7642-04-8 cis-2-octene 
• 111-66-0 oct-1-ene 
• 110-82-7 cyclohexane 
• 76200-37-8 trimethyl(1-(phenylthio)pentyl)silane 
• 123-38-6 propionaldehyde 
• 589-62-8 octan-4-ol 
• 201230-82-2 carbon monoxide 
• 1942-45-6 4-Octyne 
• 50-00-0 formaldehyd 

Downstream Products

• 15232-76-5 oct-3-yne 
• 111-65-9 octane 
• 111-67-1 2-octene 
• 106-68-3 3-octanone 
• 28180-71-4 rac-trans-2-butyl-3-ethyloxirane 
• 999-06-4 4-bromooctane 
• 999-64-4 3-bromooctane 
• 2809-67-8 oct-2-yne 
• 1731-84-6 nonanoic acid methyl ester 
• 124-19-6 nonan-1-al 
• 27649-40-7 2-ethylheptanal 
• 49642-49-1 2-methyl-1-octanal 
• 140238-46-6 2-n-propylhexanal 
• 110-54-3 hexane 

Relevant articles and documents

Kinetics of the Sodium-Ammonia Reduction of 3-Octyne

The reduction of 3-octyne by sodium in liquid ammonia was studied kinetically with use of conventional conductometric techniques.The reaction was found to obey the second-order differential rate law-dam->/dt=2kam->.An activation energy of 3.8 +/- 0.9 kcal/mol was calculated.The presence of a weak acid (H2O) markedly increased the reaction rate.A mechanism in which protonation of the radical anion is the rate-determining step is suggested.

The role of CO2 in the dehydrogenation of n-octane using Cr-Fe catalysts supported on MgAl2O4

The effect of CO2 on the dehydrogenation of n-octane over Cr-Fe oxides supported on MgAl2O4 (MgAl) was investigated. Addition of Fe as a promoter facilitated the formation of Cr-O-Fe polymeric units, stabilizing the CrOx in the +3 state on the catalysts’ surface. Catalytic results revealed that the 2Cr-Fe catalyst was the most active and also stable (ca. 10 % CO2 conversion, 8 % n-octane conversion, 84 % selectivity to octene isomers) during a 30 h reaction. The stability and high octenes selectivity over this catalyst was reflected in its higher surface basicity. Based on a redox study using CO2, it was found that the dominant mechanism for CO2 activation was oxidative (Mars van Krevelen) over the monometallic Cr catalyst, while a non-oxidative (Reverse Water Gas Shift) mechanism applied over the nCr-Fe bimetallic catalysts. It is proposed that Cr-O-MgAl is the active site in the monometallic Cr catalyst, while the Cr-O-Fe polymeric units are the active sites in the bimetallic catalysts. Coke deposition was shown to be the major cause of deactivation of the catalysts.

Photocatalytic-controlled olefin isomerization over WO3–x using low-energy photons up to 625 nm

WO3–x (W-1) was used to achieve controllable photoisomerization of linear olefins without substituents under 625 nm light irradiation. Thermodynamic and kinetic isomers were obtained by regulating the carbon chain length of the olefins. Terminal olefins were converted into isomerized products, and the internal olefin mixtures present in petroleum derivatives were transformed into valuable pure olefin products. Oxygen vacancies (OVs) in W-1 altered the electronic structure of W-1 to improve its light-harvesting ability, which accounted for the high activity of olefin isomerization under light irradiation up to 625 nm. Additionally, OVs on the W-1 surface generated unsaturated W5+ sites that coordinated with olefins for the efficient adsorption and activation of olefins. Mechanistic studies reveal that the in situ formation of surface π-complexes and π-allylic W intermediates originating from the coordination of coordinated unsaturated W5+ sites and olefins ensure high photocatalytic activity and selectivity of W-1 for the photocatalytic isomerization of olefins via a radical mechanism.