480983

Propyne

≥97%

• Linear Formula: CH₃C≡CH
• CAS Number: 74-99-7
• Molecular Weight: 40.06
• EC Number: 200-828-4
• MDL number: MFCD00036235
• PubChem Substance ID: 24871730
• NACRES: NA.22

Properties

• vapor pressure: 204.6 mmHg ( −49.5 °C)
• Quality Level: 100
• 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

Description

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.

Safety Information

• Pictograms: GHS02,GHS04,GHS07
• Signal Word: Danger
• Hazard Statements: H220 - H280 - H335
• Precautionary Statements: P210 - P410 + P403
• Target Organs: Respiratory system
• Personal Protective Equipment: dust mask type N95 (US),Eyeshields,Gloves
• RIDADR: UN 1954 2.1
• WGK Germany: nwg