Name | Propane |
Synonyms | C3H8 A-108 Popane Propane Freon 290 propylhydride propyldihydride PROPANE, NATURAL PROPANECOMBUSTION Propane,high purity |
CAS | 74-98-6 |
EINECS | 200-827-9 |
InChI | InChI=1/C3H8/c1-3-2/h3H2,1-2H3 |
Molecular Formula | C3H8 |
Molar Mass | 44.1 |
Density | 0.564 g/mL at 20 °C(lit.) |
Melting Point | -188°C(lit.) |
Boling Point | -42.1°C(lit.) |
Flash Point | -104°C |
Water Solubility | 62.61mg/L(25 ºC) |
Vapor Presure | 190 psi ( 37.7 °C) |
Vapor Density | 1.5 (vs air) |
Appearance | liquid |
Exposure Limit | TLV-TWA 1000 ppm (OSHA). |
Merck | 13,7891 |
BRN | 1730718 |
pKa | ≈ 44 (Gordon and Ford, 1972) |
Storage Condition | -20°C |
Stability | Stable. Incompatible with strong oxidizing agents. Highly flammable. May form explosive mixtures with air. |
Explosive Limit | 9.5% |
Refractive Index | 1.2861 |
Physical and Chemical Properties | Melting Point:-187.678 Boiling Point:-42.06 water-soluble: insoluble trait: Colorless odorless gas |
Use | Used as organic chemical raw materials, solvents and fuels |
Hazard Symbols | F+ - Highly flammable |
Risk Codes | 12 - Extremely Flammable |
Safety Description | S9 - Keep container in a well-ventilated place. S16 - Keep away from sources of ignition. |
UN IDs | UN 1978 2.1 |
WGK Germany | - |
RTECS | TX2275000 |
FLUKA BRAND F CODES | 4.5-31 |
Hazard Class | 2.1 |
Downstream Products | Liquefied petroleum |
propane is a colorless, flammable, non-toxic gas at room temperature and atmospheric pressure, and has the odor of natural gas. At 20 deg C and O. lMPa gas relative density (Air 1) for 1- 55. Boiling point -42.1 °c. The flammable limit in air is 2.2% to 9.5% (VOL). Point -183 °c (0.1 MPa). Triple point -187.7 °c. Gas density 1.868kg/m3 (20 °c, 0.1 MPa). The liquid density was 500/m3 at 20 °c and saturation pressure. The critical temperature is 96.8, the critical pressure is 4266kPa, and the critical density is 225kg/m3. Solubility in water 5 cm3/water. Gas specific heat capacity: C at 26.8 °c and 0.1 MPa. 74. OIJ/(mol.K), cv64.81 J/(mol.K) Cp/C,l- 142. The specific heat capacity of the liquid at 25 °c is 111. 13J/(mol.K). The gas thermal conductivity is 01674W/ (m.K) at 25 °c and 0.1 MPa. The thermal conductivity of the liquid at -40 °c is 0.1485W/(m.K). Spontaneous combustion temperature 468. Idle point -104.0 °c. Low-pressure gas cylinders are used for shipment with liquefied compressed gas at their own vapour pressure
with liquefied petroleum gas as raw material, it is condensed at 0~5 ℃ to remove some high boiling point impurities, and then it enters the adsorber to remove water, propylene, ethylene, ethane, N-butane, isobutane, n-butene, isobutene and other hydrocarbon impurities, and then into the condenser, propane condensed into liquid, and with nitrogen, oxygen and other non-condensable gas separation, can be. The extraction rate of propane can reach more than 80%.
high purity propane in chemical, metallurgy, electronics, petroleum and other industrial sectors and basic research, air pollution monitoring, aviation, atomic energy and other fields are widely used as standard gas, calibration gas, on-line instrument standard gas, preparation of some special mixed gas.
propane is a narcotic gas with mild anesthetic and irritant effects after inhalation. People in the 10% concentration of only mild dizziness, no irritation, no effect at 1% concentration. Inhalation of higher concentrations of a mixture of propane and butane can cause dizziness, Head Pain, excitement or drowsiness, Nausea, Vomit, salivation, mild lowering of blood pressure, bradycardia, reduced nerve reflexes, in severe cases, the patient presented with anesthesia and loss of consciousness. Propane cannot be stored with oxygen, chlorine, other oxidants, or combustible gas cylinders.