Propylene
ALDRICH/295663 - ≥99%
Synonym: Propene
CAS Number: 115-07-1
Empirical Formula (Hill Notation): C3H6
Molecular Weight: 42.08
EC Number: 204-062-1
MDL Number: MFCD00009279
Linear Formula: CH3CH=CH2
Product Type: Chemical
| assay | ≥99% |
| autoignition temp. | 860 °F |
| bp | −47.7 °C (lit.) |
| expl. lim. | 11.1 % |
| InChI | 1S/C3H6/c1-3-2/h3H,1H2,2H |
| InChI key | QQONPFPTGQHPMA-UHFFFAOYSA |
| mp | −185 °C (lit.) |
| Quality Level | 100 ![]() |
| SMILES string | CC=C |
| vapor density | 1.48 (vs air) |
| vapor pressure | 15.4 atm ( 37.7 °C) |
| Application: | Propylene may be used in the synthesis of propylene oxide via epoxidation with hydrogen peroxide, in the presence of titanium silicalite catalyst. |
| 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. |
| Legal Information: | Aldrich is a registered trademark of Sigma-Aldrich Co. LLC |
| Legal Information: | Sure/Pac is a trademark of Sigma-Aldrich Co. LLC |
| Packaging: | 100, 300 g in Sure/Pac™ |
| 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 ![]() |
| Symbol | ![]() GHS02,GHS04 |
| Signal word | Danger |
| Hazard statements | H220 - H280 |
| Precautionary statements | P210 - P377 - P381 - P410 + P403 |
| Hazard Codes | F+ |
| Risk Statements | 12 |
| Safety Statements | 9-16-33 |
| RIDADR | UN1077 - class 2 - Propylene |
| WGK Germany | nwg |
| Flash Point(F) | -162.4 °F - closed cup |
| Flash Point(C) | -108 °C - closed cup |
| Purity | ≥99% |
| bp | −47.7 °C (lit.) |
| mp | −185 °C (lit.) |
| UNSPSC | 12142100 |



