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Ethan Produkt Beschreibung

ETHANE Struktur
74-84-0
CAS-Nr.
74-84-0
Bezeichnung:
Ethan
Englisch Name:
ETHANE
Synonyma:
R170;C2H6;R-170;ETHANE;Bimethyl;Dimethyl;ETHANE, 99+%;ethylhydride;ETHANE 99.9%;Methylmethane
CBNumber:
CB4223139
Summenformel:
C2H6
Molgewicht:
30.07
MOL-Datei:
74-84-0.mol

Ethan Eigenschaften

Schmelzpunkt:
−172 °C(lit.)
Siedepunkt:
−88 °C(lit.)
Dichte
0.362 g/mL at 20 °C(lit.)
Dampfdichte
1.05 (vs air)
Dampfdruck
37.95 atm ( 21.1 °C)
Brechungsindex
1.0047
Flammpunkt:
−211 °F
Aggregatzustand
gas
pka
48(at 25℃)
Explosionsgrenze
13%
Merck 
13,3758
BRN 
1730716
Stabilität:
Stable. Highly flammable. Readily forms explosive mixtures with air. Incompatible with strong oxidizing agents.
CAS Datenbank
74-84-0(CAS DataBase Reference)
Sicherheit
  • Risiko- und Sicherheitserklärung
  • Gefahreninformationscode (GHS)
Kennzeichnung gefährlicher F+,F
R-Sätze: 12
S-Sätze: 9-16-33
RIDADR  UN 1035 2.1
WGK Germany  -
RTECS-Nr. KH3800000
4.5-31
Selbstentzündungstemperatur 881 °F
Hazard Note  Flammable
HazardClass  2.1
Bildanzeige (GHS)
Alarmwort Achtung
Gefahrenhinweise
Code Gefahrenhinweise Gefahrenklasse Abteilung Alarmwort Symbol P-Code
H220 Extrem entzündbares Gas. Entzündbare Gase Kategorie 1 Achtung P210, P377, P381, P403
H280 Enthält Gas unter Druck; kann bei Erwärmung explodieren. Gase unter Druck verflüssigtes Gas Warnung P410+P403
Sicherheit
P210 Von Hitze, heißen Oberflächen, Funken, offenen Flammen und anderen Zündquellenarten fernhalten. Nicht rauchen.
P377 Brand von ausströmendem Gas: Nicht löschen, bis Undichtigkeit gefahrlos beseitigt werden kann.
P381 Bei Undichtigkeit alle Zündquellen entfernen.
P410+P403 Vor Sonnenbestrahlung schützen. An einem gut belüfteten Ort aufbewahren.

Ethan Chemische Eigenschaften,Einsatz,Produktion Methoden

ERSCHEINUNGSBILD

FARBLOSES KOMPRIMIERTES FLüSSIGGAS, IN REINEM ZUSTAND GERUCHLOS.

PHYSIKALISCHE GEFAHREN

Das Gas mischt sich leicht mit Luft. Bildung explosionsfähiger Gemische. Fließen, Schütten o.ä. kann zu elektrostatischer Aufladung führen.

CHEMISCHE GEFAHREN

Reagiert heftig mit Halogenenund starken Oxidationsmitteln unter Feuer- und Explosionsgefahr.

ARBEITSPLATZGRENZWERTE

TLV (als Aliphatische Kohlenwasserstoffgase: Alkane (C1-C4)): 1000 ppm (ACGIH 2005).
MAK nicht festgelegt (DFG 2006).

AUFNAHMEWEGE

Aufnahme in den Körper durch Inhalation.

INHALATIONSGEFAHREN

Beim Entweichen aus dem Behälter verdampft die Flüssigkeit sehr schnell, wobei die Luft verdrängt wird. Ernste Erstickungsgefahr in geschlossenen Räumen.

WIRKUNGEN BEI KURZZEITEXPOSITION

WIRKUNGEN BEI KURZZEITEXPOSITION:
Schnelle Verdampfung der Flüssigkeit kann zu Erfrierungen führen.

LECKAGE

Persönliche Schutzausrüstung: Umgebungsluftunabhängiges Atemschutzgerät. Gefahrenbereich verlassen! Fachmann zu Rate ziehen! Zündquellen entfernen. Belüftung. Wasserstrahl NIEMALS auf die Flüssigkeit richten.

R-Sätze Betriebsanweisung:

R12:Hochentzündlich.

S-Sätze Betriebsanweisung:

S9:Behälter an einem gut gelüfteten Ort aufbewahren.
S16:Von Zündquellen fernhalten - Nicht rauchen.
S33:Maßnahmen gegen elektrostatische Aufladungen treffen.

Chemische Eigenschaften

colourless gas

Chemische Eigenschaften

Ethane is a compressed, liquefied, colorless gas. Mild, gasoline-like odor. Odorless when pure

History

Ethane was first synthesized in 1834 by Michael Faraday (1791–1867) through the electrolysis of acetate solutions, although Faraday believed the compound was methane. Twenty years later Adolph Wilhelm Hermann Kolbe (1818–1884) incorrectly identified ethane as the methyl radical in his research, and Edward Frankland (1825–1899) prepared ethane by treating ethyl iodine (C2H5I) with metals.

Verwenden

Ethane is the second major component in naturalgas. It is formed by petroleum cracking.It is used as a fuel gas, in the manufactureof chloro derivatives, and as a refrigerant.

Verwenden

It was first applied to the compound ether (CH3CH2OCH2CH3). Ether isa highly fl ammable compound that wasfirst prepared from the two-carbon alcohol ethanol(C2H5OH), and ethane is the two-carbon alkane. Ethane is the second most abundant componentof natural gas, with sources typically containing 1–5% by volume, but some sourcesmay contain up to 30% ethane.

Verwenden

In the manufacture of chlorinated derivatives; as refrigerant in some two-stage refrigeration systems where relatively low temperatures are produced; as fuel gas (so called "bottled gas" or "suburban propane" contains about 90% propane, 5% ethane, and 5% butane).

Vorbereitung Methode

The synthesis of ethane takes place through a process called Kolbe synthesis. In this processacetic acid (CH3COOH) undergoes electrolysis to oxidize acetate ions at the anode of an electrochemicalcell to produce acetate radicals: CH3COO- → CH3COO?. Two acetate radicals thencombine to give ethane and carbon dioxide: CH3COO? + CH3COO? → C2H6 + 2CO2.

Definition

A gaseous alkane obtained either from the gaseous fraction of crude oil or by the ‘cracking’ of heavier fractions. Ethane is the second member of the homologous series of alkanes.

Definition

ethane: A colourless flammablegaseous hydrocarbon, C2H6; m.p.–183°C; b.p. –89°C. It is the secondmember of the alkane series of hydrocarbonsand occurs in natural gas.

Allgemeine Beschreibung

A colorless odorless gas. ETHANE is easily ignited. The vapors are heavier than air. ETHANE can asphyxiate by the displacement of air. Under prolonged exposure to fire or intense heat the containers may rupture violently and rocket. Contact with the liquid may cause frostbite.

Air & Water Reaktionen

Highly flammable.

Reaktivität anzeigen

Saturated aliphatic hydrocarbons, such as ETHANE, may be incompatible with strong oxidizing agents like nitric acid. Charring of the hydrocarbon may occur followed by ignition of unreacted hydrocarbon and other nearby combustibles. In other settings, aliphatic saturated hydrocarbons are mostly unreactive. They are not affected by aqueous solutions of acids, alkalis, most oxidizing agents, and most reducing agents. Peroxidizable

Hazard

Severe fire risk if exposed to sparks or open flame. Flammable limits in air 3–12%. An asphyxiant gas.

Health Hazard

In high vapor concentrations, can act as simple asphyxiant. Liquid causes severe frostbite.

Health Hazard

Like methane, ethane is a nonpoisonous gas.It is a simple asphyxiate. At high concentrationsit may exhibit narcotic effects.

Brandgefahr

EXTREMELY FLAMMABLE. Will be easily ignited by heat, sparks or flames. Will form explosive mixtures with air. Vapors from liquefied gas are initially heavier than air and spread along ground. CAUTION: Hydrogen (UN1049), Deuterium (UN1957), Hydrogen, refrigerated liquid (UN1966) and METHANE (UN1971) are lighter than air and will rise. Hydrogen and Deuterium fires are difficult to detect since they burn with an invisible flame. Use an alternate method of detection (thermal camera, broom handle, etc.) Vapors may travel to source of ignition and flash back. Cylinders exposed to fire may vent and release flammable gas through pressure relief devices. Containers may explode when heated. Ruptured cylinders may rocket.

Sicherheitsprofil

A simple asphyxiant. See ARGON for properties of simple asphyxiants. A very dangerous fire hazard when exposed to heat or flame; can react vigorously with oxidizing materials. Moderate explosion hazard when exposed to flame. To fight fire, stop flow of gas. Incompatible with chlorine, doxygenyl tetrafluoroborate, oxidizing materials, heat or flame. When heated to decomposition it emits acrid smoke and irritating fumes.

mögliche Exposition

Ethane is used as a fuel, in making chemicals or as a freezing agent. The health effects caused by ethane exposure are much less serious than the fire and explosion risk posed by this chemical

Versand/Shipping

UN1035 (compressed gas); UN1961 (refrigerated liquid): Ethane, Hazard Class: 2.1; Labels: 2.1-Flammable gas. Cylinders must be transported in a secure upright position, in a well-ventilated truck. Protect cylinder and labels from physical damage. The owner of the compressed gas cylinder is the only entity allowed by federal law (49CFR) to transport and refill them. It is a violation of transportation regulations to refill compressed gas cylinders without the express written permission of the owner.

läuterung methode

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.]

Inkompatibilitäten

Flammable gas; forms explosive mixture with air. Strong oxidizers may cause fire and explosions. May accumulate static electrical charges, and may cause ignition of its vapors.

Waste disposal

Return refillable compressed gas cylinders to supplier. Dissolve or mix the material with a combustible solvent and burn in a chemical incinerator equipped with an afterburner and scrubber. All federal, state, and local environmental regulations must be observed.

Ethan Upstream-Materialien And Downstream Produkte

Upstream-Materialien

Downstream Produkte


Ethan Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

Global( 38)Lieferanten
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Mainchem Co., Ltd.
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027-59338440 sales@guangaobio.com CHINA 23049 58
Energy Chemical 021-58432009 / 400-005-6266
021-58436166-800 info@energy-chemical.com China 44025 61
Shanghai Hanhong Scientific Co.,Ltd. 021-54306202,021-54308259
+86-21-64545202 info@hanhonggroup.com China 43260 64
Spectrum Chemical Manufacturing Corp. 021-67601398,18616765336,QQ:3003443155
021-57711696 mkt@spectrumchina.net China 9689 60
Sigma-Aldrich 021-61415566 800-819-3336(Tel) 400-620-3333(Mobile)
orderCN@merckgroup.com China 34131 80
Shanghai wechem chemical co., ltd 021-5198 7501
021-6192 7501 info@wechem.cn China 290 58
AoboRui (Tianjin) Co., Ltd. 86 022 65675308 18310521067
86 022 65675308 23034325@qq.com China 162 55
Zibo Zeno Pharmaceutical Technology Co., Ltd. 0533-8800999 13515338377
0533-7544744 zenuoyiyao@163.com China 56 58
JinJinLe Chemical 10106090
jjlechem@163.com China 9450 58

74-84-0(Ethan)Verwandte Suche:


  • ethane,refrigeratedliquid
  • Ethyl hydride
  • ethylhydride
  • Methylmethane
  • R170
  • R-170
  • ETHANE
  • ETHANE, PRESSURE TIN WITH 1 L
  • ETHANE, 99.99%
  • ETHANE, 99+%
  • ETHANE, CYLINDER WITH 0.4 L (NET ~110 G)
  • ETHANE 99.9%
  • Bimethyl
  • C2H6
  • Dimethyl
  • Ethane,high purity
  • Ethane >=99.95% (GC)
  • Ethane Messer(R) CANGas, 99.95%
  • Bromochlorodifluorom​
  • 74-84-0
  • 74-84-9
  • 74840
  • CH3CH3
  • Synthetic Reagents
  • Compressed and Liquefied Gases
  • refrigerants
  • Organics
  • Chemical Synthesis
  • Compressed and Liquefied Gases
  • Synthetic Reagents
  • Chemical Synthesis
  • Specialty Gases
  • Synthetic Reagents
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