ChemicalBook
Chinese english Germany Korea

エタン

エタン 化学構造式
74-84-0
CAS番号.
74-84-0
化学名:
エタン
别名:
エタン
英語化学名:
ETHANE
英語别名:
R170;C2H6;R-170;ETHANE;Bimethyl;Dimethyl;ethylhydride;ETHANE, 99+%;ETHANE 99.9%;Methylmethane
CBNumber:
CB4223139
化学式:
C2H6
分子量:
30.07
MOL File:
74-84-0.mol

エタン 物理性質

融点 :
−172 °C(lit.)
沸点 :
−88 °C(lit.)
比重(密度) :
0.362 g/mL at 20 °C(lit.)
蒸気密度:
1.05 (vs air)
蒸気圧:
37.95 atm ( 21.1 °C)
屈折率 :
1.0047
闪点 :
−211 °F
外見 :
gas
酸解離定数(Pka):
48(at 25℃)
爆発限界(explosive limit):
13%
水溶解度 :
60.4mg/L(25 ºC)
Merck :
13,3758
BRN :
1730716
安定性::
Stable. Highly flammable. Readily forms explosive mixtures with air. Incompatible with strong oxidizing agents.
CAS データベース:
74-84-0(CAS DataBase Reference)
EPAの化学物質情報:
Ethane (74-84-0)
安全性情報
  • リスクと安全性に関する声明
  • 危険有害性情報のコード(GHS)
主な危険性  F+,F
Rフレーズ  12
Sフレーズ  9-16-33
RIDADR  UN 1035 2.1
WGK Germany  -
RTECS 番号 KH3800000
4.5-31
自然発火温度 881 °F
Hazard Note  Flammable
DOT Classification 2.1 (Flammable gas)
国連危険物分類  2.1
有毒物質データの 74-84-0(Hazardous Substances Data)
絵表示(GHS)
注意喚起語 Danger
危険有害性情報
コード 危険有害性情報 危険有害性クラス 区分 注意喚起語 シンボル P コード
H220 極めて可燃性/引火性の高いガス 可燃性/引火性ガス 1 危険 P210, P377, P381, P403
H280 加圧ガス;熱すると爆発のおそれ 高圧ガス 高圧ガス
液化ガス
溶解ガス
警告 P410+P403
注意書き
P210 熱/火花/裸火/高温のもののような着火源から遠ざ けること。-禁煙。
P377 漏洩ガス火災の場合:漏えいが安全に停止されな い限り消火しないこと。
P381 安全に対処できるならば着火源を除去すること。
P410+P403 日光から遮断し、換気の良い場所で保管するこ と。

エタン 価格

メーカー 製品番号 製品説明 CAS番号 包装 価格 更新時間 購入

エタン 化学特性,用途語,生産方法

定義

本品は、次の化学式で表される炭化水素である。

解説

C2H6(30.07).CH3CH3.脂肪族飽和炭化水素(アルカン)の一つ.石油系炭化水素の分解,改質により発生するガス,および湿性ガス中に含まれる.製法は,上記ガスより分留すると得られる.原子間距離C-C0.157 nm,C-H0.109 nm.∠H-C-H112°.二つのメチル基が重なり形配座よりもねじれ形配座になったほうが約12 kJ mol-1 安定である.引火性の無色,無臭の気体.融点-183.27 ℃,沸点-88.63 ℃.爆発範囲3.2~12.5体積%.化学的活性に乏しく,おもに燃料およびエテンの製造原料として用いられる.[CAS 74-84-0]
森北出版「化学辞典(第2版)

化粧品の成分用途

噴射剤

説明

Ethane is a colorless, odorless, flammable gas that is relatively inactive chemically and is considered nontoxic. It is shipped as a liquefied compressed gas under its vapor pressure of 544 psig at 70°F (3750 kPa at 21.1℃).

化学的特性

ETHANE is colorless, odorless gas, practically insoluble in H2O, moderately soluble in alcohol. The compound burns when ignited in air with a pale faintly luminous flame; forms an explosive mixture with air over a moderate range. With excess air, products of combustion are CO2 and H2O. Ethane is among the chemically less reactive organic substances. However, ethane reacts with chlorine and bromine to form substitution compounds. Ethane occurs, usually in small amounts, in natural gas. The fuel value of ethane is high, 1,730 Btu per cubic foot. Ethane may be prepared by reaction of magnesium ethyl iodide in anhydrous ether (Grignard’s reagent) with H2O or alcohols. Ethyl iodide, ethyl bromide, or ethyl chloride, are preferably made by reaction with ethyl alcohol and the appropriate phosphorus halide. Important ethane derivatives, by successive oxidation, are ethyl alcohol, acetaldehyde, and acetic acid.

化学的特性

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

来歴

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.

使用

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.

使用

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.

使用

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).

調製方法

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.

定義

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.

定義

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.

一般的な説明

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.

空気と水の反応

Highly flammable.

反応プロフィール

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

危険性

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

健康ハザード

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

健康ハザード

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

火災危険

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.

材料の用途

Ethane is noncorrosive and may be contained in installations constructed of any common metals designed to withstand the pressure involved.

安全性プロファイル

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.

職業ばく露

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

Physiological effects

Inhalation of ethane in concentrations in air up to 5 percent produces no definite symptoms, but inhalation of higher concentrations has an anesthetic effect. It can act as a simple asphyxiant by displacing the oxygen in the air. Contact between liquid ethane and skin can cause freezing of the tissue.

Carcinogenicity

Syrian hamster embryo cells were exposed in vitro to ethane gas. After exposure, the cells were removed and assayed for viability and increased sensitivity to viral transformation. Ethane was determined to be inactive.

貯蔵

All the precautions required for the safe handling of any flammable compressed gas must be observed with ethane. It is important that ignition sources be kept away from containers, including situations where leakage could cause the gas to ignite by such sources as a spark from a motor. AlI piping and equipment used with ethane should be grounded.
Ethane should not be stored with cylinders containing oxygen, chlorine, or other oxidizing or combustible materials.

輸送方法

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.

純化方法

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.]

不和合性

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.

廃棄物の処理

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.

GRADES AVAILABLE

Ethane is typically available for commercial and industrial purposes in a c.P. grade (minimum purity of99.0 mole percent) or a technical grade (minimum purity of 95.0 mole percent).

エタン 上流と下流の製品情報

原材料

準備製品


エタン 生産企業

Global( 46)Suppliers
名前 電話番号 ファックス番号 電子メール 国籍 製品カタログ 優位度
Hubei xin bonus chemical co. LTD
86-13657291602
027-59338440 linda@hubeijusheng.com CHINA 23035 58
Shaanxi Dideu Medichem Co. Ltd
15336106720
029-88380327 1017@dideu.com CHINA 3979 58
Zhengzhou Alfa Chemical Co.,Ltd
+8613343822234 +86-0371-55052911
sales5@alfachem.cn;sales9@alfachem.cn;sale1@alfachem.cn China 11995 58
Shaanxi Dideu Medichem Co. Ltd
18192503167 +86-29-89586680
+86-29-88380327 1005@dideu.com CHINA 9938 58
Mainchem Co., Ltd. +86-0592-6210733
+86-0592-6210733 sale@mainchem.com CHINA 32439 55
AoboRui (Tianjin) Co., Ltd. 18310521067 022-65675308-
QQ:2722718791 23034325@qq.com China 116 55
Energy Chemical 400-005-6266 021-58432009-
021-58436166 sales8178@energy-chemical.com China 43503 61
Shanghai Hanhong Scientific Co.,Ltd. 021-54302127
jerry.ma@hanhonggroup.com;jerry.ma@hanhonggroup.com;jerry.ma@hanhonggroup.com China 43235 64
Spectrum Chemical Manufacturing Corp. 18616765336
021-57711696 marketing_china@spectrumchemical.com; China 9686 60
Sigma-Aldrich 800-8193336 021-61415566-
orderCN@merckgroup.com;orderCN@merckgroup.com China 50837 80
Copyright 2017 © ChemicalBook. All rights reserved