Name | Ethane |
Synonyms | C2H6 Ethane UN1961 UN1035 Dimethyl Bimethyl HSDB 941 Methylmethane Ethyl hydride Ethane,high purity ethane,refrigeratedliquid Ethane, refrigerated liquid Ethane [UN1035] [Flammable gas] Ethane, refrigerated liquid [UN1961] [Flammable gas] |
CAS | 74-84-0 |
EINECS | 200-814-8 |
InChI | InChI=1S/C2H6/c1-2/h1-2H3 |
Molecular Formula | C2H6 |
Molar Mass | 30.07 |
Density | 0.362g/mLat 20°C(lit.) |
Melting Point | −172°C(lit.) |
Boling Point | −88°C(lit.) |
Flash Point | −211°F |
Water Solubility | 60.4mg/L(25 ºC) |
Vapor Presure | 37.95 atm ( 21.1 °C) |
Vapor Density | 1.05 (vs air) |
Appearance | gas |
Merck | 13,3758 |
BRN | 1730716 |
pKa | 48(at 25℃) |
Stability | Stable. Highly flammable. Readily forms explosive mixtures with air. Incompatible with strong oxidizing agents. |
Explosive Limit | 13% |
Refractive Index | 1.0047 |
Use | Mainly used as standard gas for analytical instruments in petrochemical enterprises |
Risk Codes | 12 - Extremely Flammable |
Safety Description | S9 - Keep container in a well-ventilated place. S16 - Keep away from sources of ignition. S33 - Take precautionary measures against static discharges. |
UN IDs | UN 1035 2.1 |
WGK Germany | - |
RTECS | KH3800000 |
FLUKA BRAND F CODES | 4.5-31 |
Hazard Note | Flammable |
Hazard Class | 2.1 |
colorless, odorless, combustible gas. Relative density d2 1.0493 (Air -1) or density 1.3562g/L; Foundation (solution) o.446; mp - 172 ℃;bp-88 ℃; Critical temperature 32.2 ℃, critical pressure 4883. 9kPa, critical density 203. Kg/m3. Triple point -183 °c (0.10 MPa); Latent heat of evaporation 489 kJ/kg; Latent heat of fusion at triple point 95,. The relative density of the liquid is 0. 3771( 15.6 °c) at saturation pressure. In the air flammable limit of 3.0% ~ 12.4% (Volume), flash point -135 ℃. The chemical nature is less active, can be considered to be non-toxic.
high-purity ethane with a purity of more than 99. 99% was obtained from the crude ethane feed gas purified by the combination of high-temperature adsorption and adsorption-expansion desorption.
In the chemical industry, metallurgy, electronics, petroleum and other industrial sectors and scientific research, aviation, atomic energy and other fields are widely used as standard gas, calibration gas, etching gas, online instrument standard gas, the evaluation gas of the catalyst, the preparation of some special mixtures and the study of some mechanisms.
ethane can be regarded as an asphyxiant. Human inhaled LC50: 1000 × 10_6. Ethane is a gas with anesthetic and asphyxiating effects. The ethane gas is mainly for its flammable and explosive nature to cause enough attention. The leakage gas can be checked with the active solution. Store in a cool and ventilated place, away from fire and heat sources, not with oxygen, chlorine or other oxidants or combustible gas cylinder storage. Cylinder filling coefficient is not greater than 0. 34kg/L.