480983
Propyne
≥97%
Synonym(s):
Allylene, Methylacetylene
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About This Item
Linear Formula:
CH3C≡CH
CAS Number:
Molecular Weight:
40.06
EC Number:
MDL number:
UNSPSC Code:
12142100
PubChem Substance ID:
NACRES:
NA.22
Recommended Products
vapor pressure
204.6 mmHg ( −49.5 °C)
Quality Level
Assay
≥97%
form
gas
bp
−23.2 °C (lit.)
mp
−102.7 °C (lit.)
SMILES string
CC#C
InChI
1S/C3H4/c1-3-2/h1H,2H3
InChI key
MWWATHDPGQKSAR-UHFFFAOYSA-N
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General description
Propyne (methylacetylene) is commonly used in gas welding.
Application
Propyne (CH3C≡CH) can be used:
- As a fuel for stoichiometric low-pressure flat-flames in isomer-specific combustion studies.
- In the synthesis of polycyclic aromatic hydrocarbons under various reaction conditions.
- In the synthesis of phenylacetylenes.
- In the selective synthesis of propene by catalytic hydrogenation using Pt/Al2O3 catalyst.
Packaging
Supplied in a Sure/Pac™ cylinder and has a brass needle valve with a male 1/4" NPTF outlet thread installed. Before using the cylinder, ensure that the valve is closed, then remove the galvanized steel hex cap that seals the outlet valve.
Compatible with the following:
Compatible with the following:
Legal Information
Aldrich is a registered trademark of Sigma-Aldrich Co. LLC
Sure/Pac is a trademark of Sigma-Aldrich Co. LLC
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Signal Word
Danger
Hazard Statements
Precautionary Statements
Hazard Classifications
Flam. Gas 1A - Press. Gas Compr. Gas - STOT SE 3
Target Organs
Respiratory system
Storage Class Code
2A - Gases
WGK
nwg
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
Certificates of Analysis (COA)
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Propyne hydrogenation over alumina-supported palladium and platinum catalysts
Kennedy DR, et al.
Applied Catalysis A: General, 259(1), 109-120 (2004)
Hervé Leclerc et al.
Physical chemistry chemical physics : PCCP, 13(24), 11748-11756 (2011-05-21)
The present study illustrates the importance of the oxidation state of iron within the mesoporous iron trimesate [{Fe(3)O(H(2)O)(2)F(0.81)(OH)(0.19)}{C(6)H(3)(CO(2))(3)}(2)] denoted MIL-100(Fe) (MIL= Material from Institut Lavoisier) during adsorption of molecules that can interact with the accessible metal sites through π-back donation.
Bruce H Lipshutz et al.
Organic letters, 7(19), 4095-4097 (2005-09-09)
[reaction: see text] A new route to the key coupling partner, chloromethylated CoQ0 (1), allows for direct formation of CoQ10 (3) via nickel-catalyzed cross-coupling with the side chain in the form of an in situ-derived vinyl alane (2).
Dorit Moradov et al.
The Journal of organic chemistry, 74(3), 1029-1033 (2008-12-26)
Cyclisation of diethyl 3-allyloxy-1-propynylphosphonates with Mo(CO)(6) under PK conditions to give 3-substituted-5-oxo-3,5,6,6a-tetrahydro-1H-cyclopenta[c]furan-4-ylphosphonate, 2a-h, in 45-88% isolated yields was done. The R groups are always syn with H(b) (where applicable). The stereochemistry was determined via both NMR and crystal X-ray analysis.
Fangtong Zhang et al.
Chemphyschem : a European journal of chemical physics and physical chemistry, 9(1), 95-105 (2007-12-22)
The reactions of ground-state boron atoms, B((2)P(j)), with methylacetylene, CH3CCH(X(1)A(1)), and its [D3]-substituted isotopomer, CD3CCH(X(1)A(1)), are studied under single collision conditions using the crossed molecular beam technique at collision energies of 21.6 and 21.9 kJ mol(-1), respectively. Utilizing the CD3CCH
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