CHEMICAL AND PHYSICAL PROPERTIES
| Physical Description | Cyclopropane is a colorless gas with a petroleum-like odor. It is shipped as a liquid at 4-6 atms. It is easily ignited. The vapors are heavier than air. Contact with the liquid may cause frostbite. It can asphyxiate by the displacement of air and has a narcotic effect in high concentration (formerly used as an anesthetic gas). Under prolonged exposure to fire or intense heat the containers may rupture violently and rocket. |
|---|---|
| Color/Form | COLORLESS GAS |
| Odor | RESEMBLES THAT OF PETROLEUM ETHER |
| Taste | PUNGENT |
| Boiling Point | -27.2 °F at 760 mmHg (USCG, 1999) |
| Melting Point | -197.3 °F (USCG, 1999) |
| Solubility | OSTWALD SOLUBILITY COEFFICIENT (37 °C) IN H2O: 0.20; IN BLOOD: 0.42 AND IN OIL: 11.9 |
| Density | 0.676 at -27.4 °F (USCG, 1999) - Less dense than water; will float |
| Vapor Density | 1.88 (Air= 1) |
| Vapor Pressure | 5.41X10+3 mm Hg at 25 °C/ calculated from experimentally derived coefficients/ |
| LogP | log Kow = 1.72 |
| Autoignition Temperature | 932 °F (USCG, 1999) |
| Decomposition | When heated to decomposition it emits acrid smoke and fumes. |
| Heat of Combustion | -21247 Btu/lb= -11804 cal/g= -493.88X10+5 J/kg |
| Heat of Vaporization | Molar enthalpy of vaporization: 20.05 kJ/mol at -32.81 °C; 16.93 kJ/mol at 25 °C |
| Surface Tension | 22 dynes/cm= 0.022 N/m @ -40 °C |
| Refractive Index | INDEX OF REFRACTION: 1.3799 @ -42.5 °C/D |
| Kovats Retention Index | 367 348.8 331 331 351 |
| Other Experimental Properties | LIQUEFIES AT 4-6 ATM |
| Chemical Classes | Toxic Gases & Vapors -> Simple Asphyxiants |
SAFETY INFORMATION
| Signal word | Danger |
|---|---|
| Pictogram(s) |
 Flame Flammables GHS02  Gas Cylinder Compressed Gases GHS04 |
| GHS Hazard Statements |
H220:Flammable gases H280:Gases under pressure |
| Precautionary Statement Codes |
P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P377:Leaking gas fire: Do not extinguish, unless leak can be stopped safely. P381:Eliminate all ignition sources if safe to do so. P410+P403:Protect from sunlight. Store in a well-ventilated place. |
COMPUTED DESCRIPTORS
| Molecular Weight | 42.08 g/mol |
|---|---|
| XLogP3 | 1.6 |
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 0 |
| Rotatable Bond Count | 0 |
| Exact Mass | 42.0469501914 g/mol |
| Monoisotopic Mass | 42.0469501914 g/mol |
| Topological Polar Surface Area | 0 Ų |
| Heavy Atom Count | 3 |
| Formal Charge | 0 |
| Complexity | 4.8 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 0 |
| Undefined Atom Stereocenter Count | 0 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 0 |
| Covalently-Bonded Unit Count | 1 |
| Compound Is Canonicalized | Yes |
PRODUCT INTRODUCTION
description
Cyclopropane is a colorless gas with a petroleum-like odor. It is shipped as a liquid at 4-6 atms. It is easily ignited. The vapors are heavier than air. Contact with the liquid may cause frostbite. It can asphyxiate by the displacement of air and has a narcotic effect in high concentration (formerly used as an anesthetic gas). Under prolonged exposure to fire or intense heat the containers may rupture violently and rocket.