CHEMICAL AND PHYSICAL PROPERTIES
| Physical Description | N-octane is a colorless liquid with an odor of gasoline. Less dense than water and insoluble in water. Hence floats on water. Produces irritating vapor. |
|---|---|
| Color/Form | Colorless liquid |
| Odor | Gasoline-like |
| Boiling Point | 258.1 °F at 760 mmHg (USCG, 1999) |
| Melting Point | -70.2 °F (USCG, 1999) |
| Flash Point | 56 °F (USCG, 1999) |
| Solubility | 7e-05 % at 77 °F (NIOSH, 2023) |
| Density | 0.703 at 68 °F (USCG, 1999) - Less dense than water; will float |
| Vapor Density | 3.86 (Air= 1) |
| Vapor Pressure | 10 mmHg (NIOSH, 2023) |
| LogP | log Kow = 5.18 |
| Autoignition Temperature | 428 °F (USCG, 1999) |
| Decomposition | When heated to decomposition it emits acrid smoke and irritating fumes. |
| Viscosity | 0.5151 cP at 25 °C |
| Corrosivity | Will attack some forms of plastics, rubber, and coatings. |
| Heat of Combustion | 1,302.7 kg cal/g mol wt at 760 mm Hg and 20 °C |
| Heat of Vaporization | 41.49 kJ/mol at 25 °C |
| Surface Tension | 21.14 mN/m at 25 °C |
| Ionization Potential | 9.82 eV |
| Odor Threshold | Odor Threshold Low: 15.0 [mmHg] Odor Threshold High: 235.0 [mmHg] Detection odor threshold from AIHA (mean = 150 ppm) |
| Refractive Index | Index of refraction: 1.3944 at 25 °C/D |
| Kovats Retention Index | 800 |
| Other Experimental Properties | Conversion factor: 1 ppm = 4.67 mg/cu m |
| Chemical Classes | Solvents -> Aliphatics, Saturated (<C12) |
SAFETY INFORMATION
| Signal word | Danger |
|---|---|
| Pictogram(s) |
 Flame Flammables GHS02  Exclamation Mark Irritant GHS07  Health Hazard GHS08  Environment GHS09 |
| GHS Hazard Statements |
H225:Flammable liquids H304:Aspiration hazard H315:Skin corrosion/irritation H336:Specific target organ toxicity,single exposure; Narcotic effects H410:Hazardous to the aquatic environment, long-term hazard |
| Precautionary Statement Codes |
P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P233:Keep container tightly closed. P273:Avoid release to the environment. P331:Do NOT induce vomiting. P301+P310:IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician. P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. |
COMPUTED DESCRIPTORS
| Molecular Weight | 114.23 g/mol |
|---|---|
| XLogP3 | 3.9 |
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 0 |
| Rotatable Bond Count | 5 |
| Exact Mass | 114.140850574 g/mol |
| Monoisotopic Mass | 114.140850574 g/mol |
| Topological Polar Surface Area | 0 Ų |
| Heavy Atom Count | 8 |
| Formal Charge | 0 |
| Complexity | 25 |
| 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
N-octane is a colorless liquid with an odor of gasoline. Less dense than water and insoluble in water. Hence floats on water. Produces irritating vapor.