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Propane

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Propane

EINECS 200-827-9
CAS No. 74-98-6 Density 0.565 g/cm3
Solubility Melting Point -188 °C(lit.)
Formula C3H8 Boiling Point -42.1 °C
Molecular Weight 44.11 Flash Point -104 °C
Transport Information UN 1978 2.1 Appearance colourless odourless gas
Safety 9-16 Risk Codes 12
Molecular Structure Molecular Structure of 74-98-6 (Propane) Hazard Symbols HighlyF+
Synonyms

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

 

Propane Consensus Reports

Reported in EPA TSCA Inventory.

Propane Standards and Recommendations

OSHA PEL: TWA 1000 ppm
DFG MAK: 1000 ppm (1800 mg/m3)
DOT Classification:  2.1; Label: Flammable Gas

Propane Specification

This product is an organic compound with the formula C3H8. The systematic name of this chemical is Propane. It belongs to the product categories of Refrigerants; Organics; Burners; Labware; Chemical Synthesis; Compressed and Liquefied Gases; Synthetic Reagents. Its EINECS number is 200-827-9. With the CAS registry number 74-98-6, it is also named as Dimethylmethane. In addition, the molecular weight is 44.11. Its classification codes are: (1)Aerosol propellant; (2)Aerosol propellants; (3)Agricultural Chemical; (4)Herbicide. It should be stored in the cylinder outfit which is placed in a cool place. Moreover, it should be protected from heat and fire. It is commonly used as a fuel for engines, oxy-gas torches, barbecues, portable stoves and residential central heating. It is also used as refrigerant. Besides, it is mainly used as raw material in the production of ethylene and propylene by cracking, as deasphalting reagent in refinery and as solvent in desulfurization. 

Physical properties of Propane are: (1)ACD/LogP: 2.24; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 2.236; (4)ACD/LogD (pH 7.4): 2.236; (5)ACD/BCF (pH 5.5): 29.452; (6)ACD/BCF (pH 7.4): 29.452; (7)ACD/KOC (pH 5.5): 391.926; (8)ACD/KOC (pH 7.4): 391.926; (9)#H bond acceptors: 0; (10)#H bond donors: 0; (11)Index of Refraction: 1.331; (12)Molar Refractivity: 15.947 cm3; (13)Molar Volume: 78.056 cm3; (14)Polarizability: 6.322×10-24cm3; (15)Surface Tension: 14.195 dyne/cm; (16)Density: 0.565 g/cm3; (17)Enthalpy of Vaporization: 19.04 kJ/mol; (18)Vapour Pressure: 7271.002 mmHg at 25°C.

Preparation: this chemical can be prepared by ethane at the temperature of 500 - 650 °C. This reaction will need reagent CO2. This reaction will also need catalyst Cr/SO4(2-)-SiO2. The yield is about 55.2%.

Propane can be prepared by ethane at the temperature of 500 - 650 °C

Uses of Propane: it can be used to produce 2-bromo-propane at the temperature of -20 °C. It will need reagent Br2, CBr4·2AlBr3 with the reaction time of 3 hours. The yield is about 96%.

Propane can be used to produce 2-bromo-propane at the temperature of -20 °C

When you are using this chemical, please be cautious about it as the following:
It is extremely flammable, so you should keep it away from sources of ignition - No smoking. You should keep the container in a well-ventilated place.

You can still convert the following datas into molecular structure:
(1)SMILES: CCC
(2)Std. InChI: InChI=1S/C3H8/c1-3-2/h3H2,1-2H3
(3)Std. InChIKey: ATUOYWHBWRKTHZ-UHFFFAOYSA-N

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