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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Isomer-specific combustion chemistry in allene and propyne flames
Hansen N, et al.
Combustion and Flame, 156(11), 2153-2164 (2009)
Reaction of phenyl radicals with propyne
Vereecken L, et al.
Journal of the American Chemical Society, 124(11), 2781-2789 (2002)
Lourdes Gracia et al.
The journal of physical chemistry. A, 112(8), 1808-1816 (2008-02-07)
Possible molecular mechanisms of the gas-phase ion/molecule reaction of VO2+ in its lowest singlet and triplet states (1A1/3A' ') with propyne have been investigated theoretically by density functional theory (DFT) methods. The geometries, energetic values, and bonding features of all
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Crossed molecular beams experiments have been utilized to investigate the reaction dynamics between two closed shell species, i.e. the reactions of tricarbon molecules, C(3)(X(1)Sigma(g)(+)), with allene (H(2)CCCH(2); X(1)A(1)), and with methylacetylene (CH(3)CCH; X(1)A(1)). Our investigations indicated that both these reactions
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