ETHANE manufacturers and suppliers

ETHANE suppliers

Properties

Melting point:: −172 °C(lit.)

Boiling point:: −88 °C(lit.)

Density: 0.362 g/mL at 20 °C(lit.)

vapor density: 1.05 (vs air)

vapor pressure: 37.95 atm ( 21.1 °C)

refractive index: 1.0047

Flash point:: −211 °F

pka: 48(at 25℃)

form: gas

Odor: odorless or mild gasoline-like odor

explosive limit: 13%

Water Solubility: 60.4mg/L(25 ºC)

Merck: 13,3758

BRN: 1730716

Stability:: Stable. Highly flammable. Readily forms explosive mixtures with air. Incompatible with strong oxidizing agents.

LogP: 1.810

Safety Information

Symbol(GHS): GHS02,GHS04

Signal word: Danger

Hazard statements: H220-H280

Precautionary statements: P410+P403

Hazard Codes: F+,F

Risk Statements: 12

Safety Statements: 9-16-33

RIDADR: UN 1035 2.1

WGK Germany: -

RTECS: KH3800000

F: 4.5-31

Autoignition Temperature: 881 °F

Hazard Note: Flammable

DOT Classification: 2.1 (Flammable gas)

HazardClass: 2.1

HS Code: 2901100000

Use

Ethylene can be removed by passing the gas through a sintered-glass disc into fuming H2SO4 then slowly through a column of charcoal saturated with bromine. Bromine and HBr are removed by passage through firebrick coated with N,N-dimethyl-p-toluidine. The ethane is also passed over KOH pellets (to remove CO2) and dried with Mg(ClO4)2. Further purification is by several distillations of liquified ethane, using a condensing temperature of -195o. Yang and Gant [J Phys Chem 65 1861 1961] treated ethane by standing it for 24hours at room temperature in a steel bomb with activated charcoal treated with bromine. They then immersed the bomb in a Dry-ice/acetone bath and transferred the ethane to an activated charcoal trap cooled in liquid nitrogen. (The charcoal had previously been degassed by pumping for 24hours at 450o.) By allowing the trap to warm slowly, the ethane distils, and only the middle third fraction is kept. Removal of methane is achieved using Linde type 13X molecular sieves (previously degassed by pumping for 24hours at 450o) in a trap which, after cooling in Dry-ice/acetone, is saturated with ethane. After pumping for 10minutes, the ethane is recovered by warming the trap to 25o. (The final gas contains less than 10-4 mole % of either ethylene or methane). [Beilstein 1 IV 108.]

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