Propylene Carbonate CAS#108-32-7
Cyclic carbonates cover 5‑membered, 6‑membered and 7‑membered ring carbonates, alongside macrocyclic carbonates with ring sizes larger than seven. Of this category, propylene carbonate and ethylene carbonate enjoy the broadest commercial adoption.
Ethylene carbonate is an outstanding polar solvent featuring a high boiling point, and it also acts as a critical feedstock for surfactant manufacturing. It sees widespread deployment across plastics, textile printing and dyeing, polymer synthesis, gas separation and electrochemical industries.

Melting point | -55 °C (lit.) |
Boiling point | 240 °C (lit.) |
density | 1.204 g/mL at 25 °C (lit.) |
vapor pressure | 0.13 mm Hg ( 20 °C) |
refractive index | n20/D 1.421(lit.) |
Fp | 270 °F |
storage temp. | Store below +30°C. |
solubility | 240g/l |
form | Liquid |
pka | 3.92[at 20 ℃] |
Specific Gravity | 1.209 (20/4℃) |
color | Clear |
PH | 7.0 (200g/l, H2O, 20℃) |
Relative polarity | 6 |
Odor | odorless |
explosive limit | 1.8-14.3%(V) |
Water Solubility | 240 g/L (20 ºC) |
λmax | λ: 235 nm Amax: 1.00 |
λ: 280 nm Amax: 0.50 | |
λ: 300 nm Amax: 0.30 | |
λ: 350 nm Amax: 0.05 | |
λ: 375-400 nm Amax: 0.01 | |
BRN | 107913 |
Henry's Law Constant | 2.9×102 mol/(m3Pa) at 25℃, Duchowicz et al. (2020) |
Dielectric constant | 64.4(Ambient) |
Stability: | Stable. Incompatible with strong oxidizing agents, acids, bases, reducing agents. Protect from contact with moist air or water. |
Major Application | food and beverages |
Cosmetics Ingredients Functions | SOLVENT |
VISCOSITY CONTROLLING | |
InChI | 1S/C4H6O3/c1-3-2-6-4(5)7-3/h3H,2H2,1H3 |
InChIKey | RUOJZAUFBMNUDX-UHFFFAOYSA-N |
SMILES | CC1COC(=O)O1 |
LogP | -0.41 at 20℃ |
CAS DataBase Reference | 108-32-7(CAS DataBase Reference) |
NIST Chemistry Reference | Propylene carbonate(108-32-7) |
EPA Substance Registry System | Propylene carbonate (108-32-7) |
Safety Information
Hazard Codes | Xi |
Risk Statements | 36 |
Safety Statements | 26-37/39 |
WGK Germany | 1 |
RTECS | FF9650000 |
F | 46091 |
Autoignition Temperature | 851 °F |
TSCA | TSCA listed |
HS Code | 29209010 |
Storage Class | 10 - Combustible liquids |
Hazard Classifications | Eye Irrit. 2 |
Hazardous Substances Data | 108-32-7(Hazardous Substances Data) |
Toxicity | LD50 orally in Rabbit: > 5000 mg/kg LD50 dermal Rabbit > 20000 mg/kg |

Product Application of Propylene Carbonate CAS#108-32-7
Propylene carbonate is broadly applied as a solvent for synthetic fibers and multiple polymeric materials. It also functions as an extractant, plasticizer and processing auxiliary agent for numerous industrial and chemical processes.


