A4226014
(±)-Propylene oxide , 99% , 75-56-9
Synonym(s):
(±)-Methyloxirane;(±)-Propylene oxide;1,2-Epoxypropane;1,2-Epoxypropane, Methyloxirane;1,2-Propylene oxide
CAS NO.：75-56-9
Empirical Formula: C3H6O
Molecular Weight: 58.08
MDL number: MFCD00005126
EINECS: 200-879-2
Update time: 2022-07-08
PRODUCT Properties
| Melting point: | -112 °C |
| Boiling point: | 34 °C(lit.) |
| Density | 0.83 g/mL at 25 °C(lit.) |
| vapor density | 2 (vs air) |
| vapor pressure | 29.43 psi ( 55 °C) |
| refractive index | n |
| Flash point: | −35 °F |
| storage temp. | 2-8°C |
| solubility | 425-450g/l |
| form | Liquid |
| color | Clear |
| Odor | Ethereal; characteristic; sweet, alcoholyc; like natural gas. |
| explosive limit | 1.9-36%(V) |
| Water Solubility | 40 g/100 mL (20 ºC) |
| FreezingPoint | -112.13℃ |
| Merck | 14,7856 |
| BRN | 79763 |
| Henry's Law Constant | Not an environmentally important parameter because propylene oxide reacts rapidly with water |
| Exposure limits | TLV-TWA 50 mg/m3
(20 ppm) (ACGIH),
240 mg/m3
(100 ppm) (OSHA); IDLH
2000 ppm. |
| Stability: | Stable. Incompatible with acids, bases, oxidizing agents, copper, copper alloys, brass, bronze, iron, metal chlorides, peroxides and a wide variety of other materials. Reacts with compounds containing labile hydrogen. Extremely flammable - note low boiling point, low flash point and very wide explosion limits. Moisture sensitive. |
| LogP | 0.030 |
Description and Uses
Propylene oxide is an allergic and irritant agent, used as a solvent and raw material in the chemical industry as starting material and intermediate for a broad spectrum of polymers.
Chemical intermediate in preparation of polyethers to form polyurethanes; in preparation of urethane polyols and propylene and dipropylene glycols; in preparation of lubricants, surfactants, oil demulsifiers. As solvent; fumigant; soil sterilant.
Safety
| Symbol(GHS) |    GHS02,GHS06,GHS08 |
| Signal word | Danger |
| Hazard statements | H224-H302-H311+H331-H319-H335-H340-H350 |
| Precautionary statements | P210-P233-P280-P303+P361+P353-P308+P313-P403+P233 |
| Hazard Codes | F+,T |
| Risk Statements | 45-46-12-20/21/22-36/37/38 |
| Safety Statements | 53-45 |
| RIDADR | UN 1280 3/PG 1 |
| WGK Germany | 3 |
| RTECS | TZ2975000 |
| Autoignition Temperature | 430 °C |
| TSCA | Yes |
| HS Code | 2910 20 00 |
| HazardClass | 3 |
| PackingGroup | I |
| Toxicity | LD50 orally in rats: 1.14 g/kg (Smyth) |
| IDLA | 400 ppm |
