Propylene carbonate (often abbreviated as PC) is an organic compound with the molecular formula CH3C2H3O2CO. It is a carbonate derived from propylene glycol. This colorless and odorless liquid can be used as a polar, aprotic solvent. Propylene carbonate is chiral but is only used in racemic mixtures.
Basic information about propylene carbonate
| Chinese name | Propylene carbonate | English name | Propylene Carbonate |
|---|---|---|---|
| Chinese alias |
Propylene glycol carbonate;1,2-propanediol carbon;4-methyl-1,3-dioxolane-2-one;1,2-propanediol carbonate; |
English alias |
1,3-Dioxolan-2-one, 4-methyl-; 2-Oxo-4-methyl-1,3-dioxolane;4-Methyl-1, 3-dioxolan-2-one;1,2-Propanediol cyclic carbonate,4-Methyl-1,3-dioxolan-2-one;Propylene carbonate; |
| CAS number | 108-32-7 | Molecular formula | C4H6O3 |
| Molecular weight | 102.08900 | Exact mass | 102.03200 |
| PSA | 35.53000 | LOGP | 0.54170 |
Introduction to the physical and chemical properties of propylene carbonate
Appearance and properties: colorless liquid
Density: 1.204
Boiling point: 240-243ºC
Melting point: -49ºC
Flash point: 123ºC
Refractive index: 1.42-1.422
Stability: Stable. Incompatible with strong oxidizing agents, acids, bases, reducing agents. Handfeel additives from contact with moist air or water.
Storage conditions: Complete packaging, pack with care,The warehouse should be ventilated, keep away from open flames and high temperatures, and store neodymium carbonate separately from oxidants
Vapor pressure: 0mmHg at 25°C
Propylene carbonate brief safety information
RTECS number: FF9650000
Safety Instructions: 26-37/39
Hazard category code Tetrahydrofuran: R36
WGK Germany：1
Customs code: 2932999099
Dangerous goods mark: Xi
Signal word: Warning
Danger sign: GHS07
Hazard Precautionary Statements: P305 + P351 + P338
Hazard description: H319
Introduction to production methods and uses of propylene carbonate
Introduction to the production method of propylene carbonate
1. The raw material propylene glycol of the phosgene method reacts with phosgene to generate hydroxyisopropyl chloroformate, and then reacts with sodium hydroxide to generate propylene carbonate, which is then distilled under reduced pressure to obtain the finished product.
2. Transesterification method.
3. Chloropropanol method.
4. Synthesis method of propylene oxide and carbon dioxide. Carbon dioxide and propylene oxide react at 150-160°C and 5MPa to form propylene carbonate. The finished product is obtained by fractionation under reduced pressure. The above methods have all been industrialized, but the first three methods have high production costs and poor product quality, so they are gradually replaced by the fourth method.
5. Propylene oxidation and carbon dioxide synthesis method. This method is a synthetic method developed by laboratories in recent years.
Introduction to the uses of propylene carbonate
This product can be used as an efficient solvent to remove carbon dioxide from petroleum gas, petroleum cracked gas, oil field gas and synthetic ammonia raw material gas; in the textile industry, it can be used as an auxiliary and color-fixing agent for synthetic fibers. ; In the battery industry, it can be used as an excellent medium for lithium batteries; in the polymer industry, it can be used as a solvent for polymers.
