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| CAS No.: | 68476-85-7 |
|---|---|
| Name: | Liquefied petroleum ges |
| Molecular Structure: | |
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| Formula: | C3、C4 |
| Molecular Weight: | 0 |
| Synonyms: | Petroleumgases, liquefied; Burshane; Fuels, liquefied petroleum gas; LPG; Liq. petroleumgas; Liquefied petroleum gases; Liquid petroleum gas; Liquified petroleum gas;Pyrofax |
| EINECS: | 270-704-2 |
| Hazard Symbols: | Highly flammable, dangerous fire and explosion risk. TLV: 1000 ppm. |
| Risk Codes: | 12-45-46 |
| Safety: | Olefinic impurities may lend a narcotic effect or it may act as a simple asphyxiant. A very dangerous fire hazard when exposed to heat or flame. Can react with oxidizing materials. To fight fire, use CO2, dry chemical, water spray. Used as a fuel refrigerant, propellant, and raw material in chemical synthesis. |
| PSA: | 0.00000 |
| LogP: | 0.00000 |
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Chemistry
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Systematic Name: Butane
Empirical Formula: C4H10
Molecular Weight: 58.1222
EINECS: 270-704-2
Product Categories: UVCBs-organic
Classification Code: TSCA UVCB
Index of Refraction: 1.354
Molar Refractivity: 20.58 cm3
Molar Volume: 94.5 cm3
Surface Tension: 16.7 dyne/cm
Density: 0.614 g/cm3
Enthalpy of Vaporization: 22.44 kJ/mol
Vapour Pressure of Liquefied petroleum gas (CAS NO.68476-85-7): 1920 mmHg at 25 °C
Uses
Liquefied petroleum gas (CAS NO.68476-85-7) can be used as a vehicle fuel,a cooking fuel,and refrigerant. It is used for domestic and industrial heating, flame weeding, tobacco curing, grain drying, and in motor vehicles, as well as for the petrochemical industry.
Production
Liquefied petroleum gas is synthesised by refining petroleum or 'wet' natural gas, and is usually derived from fossil fuel sources, being manufactured during the refining of crude oil, or extracted from oil or gas streams as they emerge from the ground.
Consensus Reports
Reported in EPA TSCA Inventory.
Safety Profile
Olefinic impurities may lend a narcotic effect or it may act as a simple asphyxiant. A very dangerous fire hazard when exposed to heat or flame. Can react with oxidizing materials. To fight fire, use CO2, dry chemical, water spray. Used as a fuel refrigerant, propellant, and raw material in chemical synthesis.
Hazard Codes: 
F+,
T
Risk Statements: 12-45-46
R12:Extremely flammable.
R45:May cause cancer.
R46:May cause heritable genetic damage.
Safety Statements: 53-45
S53:Avoid exposure - obtain special instructions before use.
S45:In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
RIDADR: 1075
HazardClass of Liquefied petroleum gas (CAS NO.68476-85-7): 2.1
Standards and Recommendations
OSHA PEL: TWA 1000 ppm
NIOSH REL: TWA 350 mg/m3; CL 1800 mg/m3/15M
ACGIH TLV: TWA 1000 ppm
DOT Classification: 2.1; Label: Flammable Gas
Specification
Liquefied petroleum gas (CAS NO.68476-85-7), its Synonyms are Burshane ; Fuels, liquefied petroleum gas ; LPG ; LPG (liquefied petroleum gases) ; Petroleum gas liquefied ; Pyrofax ; Petroleum gas (liquefied) ; Petroleum gases, liquefied ; Petroleum products, gases, liquefied . It is mixture of butane, isobutane, propane, propylene, butylenes and other hydrocarbons of low molecular weight that is refined from petroleum. Maintained as a liquid under pressure. Leaking vessels can release either the liquid, which quickly vaporizes, or the gaseous mixture. The gas is heavier than air-- a flame can flash back to the source of the leak very easily. Under prolonged exposure to heat the containers may rupture violently and rocket. Used as a fuel, an aerosol propellant, in cigarette lighters, and to make other chemicals.