295663

Propylene

≥99%

• Synonym(s): Propene
• Linear Formula: CH₃CH=CH₂
• CAS Number: 115-07-1
• Molecular Weight: 42.08
• Beilstein/REAXYS Number: 1696878
• EC Number: 204-062-1
• MDL number: MFCD00009279
• UNSPSC Code: 12142100
• PubChem Substance ID: 24857803
• NACRES: NA.22

Properties

• vapor density: 1.48 (vs air)
• Quality Level: 100
• vapor pressure: 15.4 atm ( 37.7 °C)
• assay: ≥99%
• autoignition temp.: 860 °F
• expl. lim.: 11.1 %
• bp: −47.7 °C (lit.)
• mp: −185 °C (lit.)
• SMILES string: CC=C
• InChI: 1S/C3H6/c1-3-2/h3H,1H2,2H3
• InChI key: QQONPFPTGQHPMA-UHFFFAOYSA-N

Description

General description

Propylene is a nonpolar olefin. It is commonly used as a precursor for the synthesis of cumene, propylene oxide,acrylonitrile, and isopropanol. Selective oxidation of propylene in a gas containing oxygen and hydrogen over Au/TiO₂ catalysts has been reported. Polymerization of propylene using Ziegler-Natta catalyst has been studied. Metal-catalyzed copolymerizations of nonpolar olefins (ethylene and propylene) with alkyl acrylates has been described. Copolymerization of propylene with the linear α-olefins 1-octene, 1-decene, 1-tetradecene, and 1-octadecene has been studied.

Application

Propylene may be used in the synthesis of propylene oxide via epoxidation with hydrogen peroxide, in the presence of titanium silicalite 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:

• Aldrich^® Sure/Pac^™ station for liquefied gases Z566446
• PTFE Sealing tape Z104388 or Z221880
• Brass hose adapter Z146811
• Aldrich^® mini gas regulator Z513539

Legal Information

Aldrich is a registered trademark of Sigma-Aldrich Co. LLC

Sure/Pac is a trademark of Sigma-Aldrich Co. LLC

Safety Information

• pictograms: GHS02,GHS04
• signalword: Danger
• hcodes: H220,H280
• pcodes: P410 + P403
• Hazard Classifications: Flam. Gas 1 - Press. Gas Liquefied gas
• Storage Class: 2A - Gases
• wgk_germany: WGK 3
• flash_point_f: -162.4 °F - closed cup
• flash_point_c: -108 °C - closed cup
• ppe: Eyeshields, Faceshields, Gloves, multi-purpose combination respirator cartridge (US)