6145-18-2

Basic information

• Product Name: ETHYLENE-13C1
• Synonyms: ETHYLENE-13C1;ETHYLENE-13C 99 ATOM % 13C;ethene-13c1
• CAS NO: 6145-18-2
• Molecular Formula: C₂H₄
• Molecular Weight: 29.06
• Mol File: 6145-18-2.mol
• Article Data: 4

Chemical Properties

• Melting Point: −169 °C(lit.)
• Boiling Point: −104 °C(lit.)
• Appearance: /
• Vapor Density: 0.97 (vs air)
• Vapor Pressure: 35.04 atm ( 20 °C)
• CAS DataBase Reference: ETHYLENE-13C1(CAS DataBase Reference)
• NIST Chemistry Reference: ETHYLENE-13C1(6145-18-2)
• EPA Substance Registry System: ETHYLENE-13C1(6145-18-2)

Safety Data

• Hazard Codes: F+
• Statements: 12-67
• Safety Statements: 9-16-33-45
• RIDADR: UN 1962 2.1
• WGK Germany: 3
• Hazardous Substances Data: 6145-18-2(Hazardous Substances Data)

Upstream product

• 14742-23-5 ethanol-1-13C 
• 67-56-1 methanol 
• 14742-26-8 [¹³C]methanol 
• 15807-60-0 (5-⁽¹³⁾C)n-nonane 

Relevant articles and documents

Mechanistic Insights into Catalytic Ethanol Steam Reforming Using Isotope-Labeled Reactants

The low-temperature ethanol steam reforming (ESR) reaction mechanism over a supported Rh/Pt catalyst has been investigated using isotope-labeled EtOH and H2O. Through strategic isotope labeling, all nonhydrogen atoms were distinct from one another, and allowed an unprecedented level of understanding of the dominant reaction pathways. All combinations of isotope- and non-isotope-labeled atoms were detected in the products, thus there are multiple pathways involved in H2, CO, CO2, CH4, C2H4, and C2H6product formation. Both the recombination of C species on the surface of the catalyst and preservation of the C?C bond within ethanol are responsible for C2product formation. Ethylene is not detected until conversion drops below 100 % at t=1.25 h. Also, quantitatively, 57 % of the observed ethylene is formed directly through ethanol dehydration. Finally there is clear evidence to show that oxygen in the SiO2-ZrO2support constitutes 10 % of the CO formed during the reaction.

Photocatalytic Oxidation of Ethanol: Isotopic Labeling and Transient Reaction

Transient reaction techniques were combined with isotope labeling to study the reaction steps for the room-temperature, photocatalytic oxidation (PCO) of ethanol on TiO2.Carbon-13 labeled ethanol (CH3(13)CH2OH) was adsorbed on the catalyst and photocatalytically oxidized in the absence of gas-phase ethanol.The amounts of species remaining on the surface after PCO were determined by temperature-programmed oxidation.During PCO, only CO2 and H2O formed for low coverages of ethanol, whereas acetaldehyde also desorbed for saturation coverage.Acetaldehyde forms rapidly from ethanol oxidation during PCO.At both low and high ethanol coverages, the α-carbon is preferentially oxidized and thus (13)CO2 forms faster than (12)CO2 at short illumination times.At longer times, the rates of (13)CO2 and (12)CO2 formation are nearly identical.The difference in behavior between (13)CO2 and (12)CO2 formation suggests two parallel reactions of ethanol, which may be due to two adsorption sites on TiO2.