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Propylene oxide

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Identification
Molecular formula
C3H6O
CAS number
75-56-9
IUPAC name
2-methyloxirane
State
State

At room temperature, propylene oxide is a liquid.

Melting point (Celsius)
-112.10
Melting point (Kelvin)
161.05
Boiling point (Celsius)
34.20
Boiling point (Kelvin)
307.35
General information
Molecular weight
58.08g/mol
Molar mass
58.0790g/mol
Density
0.8308g/cm3
Appearence

Propylene oxide is a colorless, volatile liquid with a faint, sweet ether-like odor. It is often found in industrial settings and is known for its ability to dissolve various resins and many other organic substances.

Comment on solubility

Solubility of 2-Methyloxirane

2-Methyloxirane, commonly known as propylene oxide, exhibits unique solubility characteristics that are important for its applications in various chemical processes. Here are some key points regarding its solubility:

  • Polarity: 2-Methyloxirane is a polar compound due to the presence of the epoxide group, which influences its solubility in different solvents.
  • Water Solubility: This compound has moderate solubility in water, with a solubility of approximately 2000 mg/L at 25°C. However, it is more soluble in organic solvents.
  • Solvent Compatibility: 2-Methyloxirane is highly soluble in most organic solvents such as:
    • Alcohols (e.g., ethanol, methanol)
    • Aromatics (e.g., benzene, toluene)
    • Chlorinated solvents (e.g., dichloromethane)
  • Hydrophobic and Lipophilic Nature: Given its structure, 2-methyloxirane can also demonstrate a certain degree of hydrophobicity, making it favorable in nonpolar environments.

In summary, while 2-methyloxirane shows moderate solubility in water, it is much more soluble in organic solvents, making it suitable for various industrial and laboratory applications. The combination of its polar characteristics and hydrophobic qualities allows it to interact effectively with a range of chemical species.

Interesting facts

Interesting Facts about 2-Methyloxirane

2-Methyloxirane, commonly known as propylene oxide, is a fascinating chemical compound with a variety of applications and properties worth exploring. Here are some compelling insights into this intriguing molecule:

  • Versatile Intermediate: 2-Methyloxirane is a crucial building block in the synthesis of various chemicals, notably polyether polyols, which are essential for the production of flexible and rigid foams.
  • Fumigant Characteristics: This compound has been utilized as a fumigant due to its ability to penetrate and eliminate pests, particularly in agricultural applications.
  • Low Toxicity: In comparison to other chemical intermediates, 2-methyloxirane exhibits relatively low toxicity, making it a favorable option for certain applications in consumer products.
  • Environmental Considerations: It is worth noting that while 2-methyloxirane is effective, careful handling is necessary, as it can still pose risks to health and the environment if not managed responsibly.
  • Unique Structure: The presence of a three-membered epoxide ring in its structure gives 2-methyloxirane distinctive reactivity patterns, allowing it to participate in various chemical reactions, including ring-opening reactions.
  • Historical Significance: The discovery and use of 2-methyloxirane traces back to advancements in polymer chemistry, which have greatly influenced the development of modern materials.

With its multifaceted roles, 2-methyloxirane continues to be a significant compound in both industrial processes and chemical research. As we delve deeper into its applications and effects, it becomes evident that this simple molecule holds great potential within the field of chemistry.

Synonyms
Propylene oxide
2-Methyloxirane
75-56-9
1,2-Epoxypropane
Methyloxirane
Oxirane, methyl-
Epoxypropane
Propyleneoxide
Propene oxide
1,2-PROPYLENE OXIDE
Propylene epoxide
Methyl oxirane
2,3-Epoxypropane
Methyloxacyclopropane
Methyl ethylene oxide
Propane, epoxy-
Oxyde de propylene
Epihydrin
oxirane, 2-methyl-
AD 6 (suspending agent)
Ethylene oxide, methyl-
Caswell No. 713A
2-methyl-oxirane
Propane, 1,2-epoxy-
Methylethylene oxide
NCI-C50099
CCRIS 540
propeneoxide
HSDB 173
(+/-)-Propylene oxide
2-Methyloxiran
UNII-Y4Y7NYD4BK
Y4Y7NYD4BK
2-Methyl oxirane
EINECS 200-879-2
EPA Pesticide Chemical Code 042501
1,2-epoxy-propane
BRN 0079763
AD 6
CHEBI:38685
AI3-07541
(+/-)-Methyloxirane
3-Methyl-1,2-epoxypropane
DL-1,2-EPOXYPROPANE
(+/-)-1,2-Epoxypropane
DTXSID5021207
EC 200-879-2
5-17-01-00017 (Beilstein Handbook Reference)
Propylene oxide (JAN)
PROPYLENE OXIDE [JAN]
PROPYLENE OXIDE (IARC)
PROPYLENE OXIDE [IARC]
PROPYLENE OXIDE (USP-RS)
PROPYLENE OXIDE [USP-RS]
propylenoxide
propene epoxide
Oxyde de propylene [French]
1,2-epoxy propane
(+/-)-Propylene oxide, ReagentPlus(R), >=99%
UN1280
epoxy-propane
methyl-oxirane
proplyene oxide
1,2-epoxipropane
rac-propylene oxide
1,2-propylenoxide
(RS)-methyloxirane
MFCD00005126
S(-)-Methyloxirane
Caswell No 713A
Methyl-(S)-Oxirane
Methyl-Ethylene oxide
(rs)-propylene oxide
PROPANE, EPOXY
DL-PROPYLENE OXIDE
(.+/-.)-Methyloxirane
Propylene oxide [UN1280] [Flammable liquid]
(+-)-EPOXYPROPANE
(+-)-METHYLOXIRANE
PROPYLENE OXIDE [MI]
Propylene oxide (DOT:OSHA)
PROPYLENE OXIDE [FCC]
Pesticide Code: 042501.
DTXCID301207
(+-)-2-METHYLOXIRANE
(+/-)-1,2-Propylene oxide
CHEMBL2251584
(.+/-.)-1,2-Epoxypropane
(+/-)-Propylene oxide, 99%
(+/-)-1,2-Propylene-d6Oxide
(+-)-1,2-EPOXYPROPANE
(+/-)-Propylene oxide, 99.5%
1,2-PROPYLENE OXIDE [HSDB]
BBL100026
STL511007
AKOS000121587
AKOS017283338
UN 1280
(+/-)-Propylene oxide, >=99.5%
DB-025383
DB-043223
(+/-)-Propylene oxide, analytical standard
E0016
NS00009434
EN300-22338
D09803
(+/-)-Propylene oxide, ReagentPlus(R), 99%
Propylene oxide [UN1280] [Flammable liquid]
Q727742
(+/-)-Propylene oxide, purum, >=99.0% (GC)
(R)-(+)-Methyloxirane; (R)-(+)-1,2-Epoxypropane
(S)-(-)-1,2-Epoxypropane; (S)-(-)-Methyloxirane
(+/-)-Propylene oxide, SAJ special grade, >=99.0%
F8880-5385
(+/-)-Propylene oxide, puriss. p.a., >=99.5% (GC)
Propylene oxide, United States Pharmacopeia (USP) Reference Standard
200-879-2