480983

Sigma-Aldrich

Propyne

≥97%

Linear Formula:
CH3C≡CH
CAS Number:
Molecular Weight:
40.06
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.22

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

25, 100 g in Sure-Pac™

Other Notes

For 480983-100G-EU packaging: 1000 mL of aluminium cylinder equipped with stainless steel valve.

Recommended products

  • For 480983-25/100G: Brass hose adapter Z146811 or brass body mini gas regulator Z513539 is recommended.
  • For 480983-100G-EU: outlet fitting: DIN 477-1 no.1, Z742162 or Z742164 are the recommended regulators.

Signal Word

Danger

Hazard Statements

Precautionary Statements

Target Organs

Respiratory system

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

RIDADR

UN 1954 2.1

WGK Germany

nwg

In situ generation of 1-propyne: A useful introduction of 1-propyne on unsaturated halogenated compounds through the Sonogashira reaction
Abraham E and Suffert J
Synlett, 2002(02), 0328-0330 (2002)
Propyne hydrogenation over alumina-supported palladium and platinum catalysts
Kennedy DR, et al.
Applied Catalysis A: General, 259(1), 109-120 (2004)
Reaction of phenyl radicals with propyne
Vereecken L, et al.
Journal of the American Chemical Society, 124(11), 2781-2789 (2002)
Isomer-specific combustion chemistry in allene and propyne flames
Hansen N, et al.
Combustion and Flame, 156(11), 2153-2164 (2009)
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...
Protocols
Protocol for GC Analysis of C1-C5 Hydrocarbons on Alumina Sulfate PLOT
Read More

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