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Propane

Propane;Dimethylmethane;Propyl hydride;R 290;n-Propane;Liquefied petroleum gas;LPG;HC 290;Purifrigor P 2;Purifrigor P 2.5;Purifrigor P 3;Purifrigor P 3.5;R 280

74-98-6

C3H8

InChIKey=ATUOYWHBWRKTHZ-UHFFFAOYSA-N

44.1

44.10

200-827-9

T75W9911L6

0319

1978|1075

DTXSID5026386|DTXSID5028538

Colorless gas [Shipped as a liquefied compressed gas].

2901100000

Organic Fluorine Compound

0

2.36

Propane appears as a colorless gas with a faint petroleum-like odor. It is shipped as a liquefied gas under its vapor pressure. For transportation it may be stenched. Contact with the unconfined liquid can cause frostbite by evaporative cooling. Easily ignited. The vapors are heavier than air and a flame can flash back to the source of leak very easily. The leak may be either a liquid or vapor leak. The vapors can asphyxiate by the displacement of air. Under prolonged exposure to fire or heat the containers may rupture violently and rocket.

0.5853 g/cm³ @ Temp: -45 °C

-189.7 °C

-42.1 °C @ Press: 800 Torr

-104 °C

Index of refraction: 1.2898 @ 20 °C

(vol %):Alcohol (790 at 16.6°C and 754mmHg),benzene(1,452 at 21.5°C and 757 mmHg),chloroform(1,299 at 21.6°C and 757mmHg),ether(926 at 16.6°C and 757mmHg),and turpentine (1,587 at 17.7°C and 757mmHg)(Windholz et al., 1983).

-20°C

190 psi ( 37.7 °C)

1.5 (vs air)

Reference value Inhalation-Rat LC50: 658000 mg/m3/ 4 hours

Open flame, flammable when heated; burning produces irritating smoke

9.5%

Odorless [Note: A foul smelling odorant is often added when used for fuel purposes].

1.15e-12 cm3/molecule*sec

Henry's Law constant = 7.07X10-1 atm-cu m/mol at 25 °C (est)

Burns with a luminous, smoky flame; heavier than air; 1 liter weighs 2.0200 g at 0 °C, 760 mm Hg /and/ 1.8324 g at 25 °C, 760 mm Hg; liquefies at -42 °C; solid at -187.7 °C|Liquid water interfacial tension (est): 50 dynes/cm = 0.05 N/m at -50 °C; ratio of specific heats of vapor (gas): 1.130|1 mg/cu m = 0.55 ppm; 1 ppm = 1.83 mg/cu m|Heating value for ideal gas at 60 °F and 14.7 psi, dry basis: 2517 BTU/cu ft; specific volume of real gas at 60 °F and 14.7 psi: 8.4515 cu ft/lb /Research grade/|For more Other Experimental Properties (Complete) data for PROPANE (11 total), please visit the HSDB record page.

Highly flammable.

Hydrocarbons, Aliphatic Saturated

Highly Flammable

PROPANE is incompatible with strong oxidizing agents.

842 °F (USCG, 1999)|842 °F (450 °C)|450 °C

(constant vol) 528.4 cal; (constant pressure) 553.5 cal

11.07 eV

Lower flammable limit: 2.1% by volume; Upper flammable limit: 9.5% by volume|Flammable Gas

The gas is heavier than air and may travel along the ground; distant ignition possible. The gas is heavier than air and may accumulate in lowered spaces causing a deficiency of oxygen. As a result of flow, agitation, etc., electrostatic charges can be generated.

Non-corrosive

14.79 kJ/mol at 25 °C

Critical temperature: 96.81 °C; critical pressure: 42.01 atm