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エチルメルカプタン

エチルメルカプタン 化学構造式
75-08-1
CAS番号.
75-08-1
化学名:
エチルメルカプタン
别名:
エチルメルカプタン;チオエチルアルコール;エチルチオアルコール;エチルチオール;1-エタンチオール;エチルスルフヒドラート;チオエタノール;メルカプトエタン;エタン-1-チオール;エタンチオール;エチルメルカプタン (エタンチール);メルカプタン(エチルメルカプタン);エチルメルカプタン, 2000 µg/mL in Toluene;エタンチオ-ル
英語化学名:
Ethanethiol
英語别名:
EM RT;C2H5SH;EM(TM) RT;Etantiolo;Ethanthiol;etantiolol;ETHANETHIOL;Ethaanthiol;Thioethanol;Aethanethiol
CBNumber:
CB7854211
化学式:
C2H6S
分子量:
62.13
MOL File:
75-08-1.mol

エチルメルカプタン 物理性質

融点 :
-148 °C
沸点 :
35 °C(lit.)
比重(密度) :
0.839 g/mL at 25 °C(lit.)
蒸気密度:
2.1 (vs air)
蒸気圧:
8.51 psi ( 20 °C)
屈折率 :
n20/D 1.4306(lit.)
FEMA :
4258 | ETHANETHIOL
闪点 :
1 °F
貯蔵温度 :
Store below +30°C.
溶解性:
6.8g/l
酸解離定数(Pka):
10.6(at 25℃)
外見 :
Liquid
色:
Colorless
臭い (Odor):
Strong chunk; offensive garlic.
臭い (Odor):
Ethanethiol has a strongly disagreeable odor that humans can detect in minute concentrations. The threshold for human detection is as low as one part in 2.8 billion parts of air. Its odor resembles that of leeks, onions or cooked cabbage, but is quite distinct. Ethanethiol is intentionally added to butane and propane (see: LPG) to impart an easily noticed smell to these normally odorless fuels that pose the threat of fire, explosion, and asphyxiation.
爆発限界(explosive limit):
2.8-18%(V)
臭気閾値(Odor Threshold):
0.0000087ppm
水溶解度 :
Soluble in alcohol, ether, waterMiscible with alcohol, petroleum naphtha, acetone, dilute alkali and ether. Slightly miscible with water.
Merck :
14,3726
JECFA Number:
1659
BRN :
773638
Henry's Law Constant:
3.57(x 10-3 atm?m3/mol) at 25 °C (Przyjazny et al., 1983)
暴露限界値:
TLV-TWA 0.5 ppm (~1.3 mg/m3 ) (ACGIH and MSHA); ceiling 10 ppm (OSHA); IDLH 2500 ppm (NIOSH).
安定性::
Stable. Extremely flammable - note low flash point. Incompatible with oxidizing agents, strong acids. May form explosive mixtures with air.
CAS データベース:
75-08-1(CAS DataBase Reference)
NISTの化学物質情報:
Ethanethiol(75-08-1)
EPAの化学物質情報:
Ethyl mercaptan (75-08-1)
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,Xn,N,F+
Rフレーズ  11-20-50/53-51/53-12-20/22
Sフレーズ  16-25-60-61
RIDADR  UN 2363 3/PG 1
WGK Germany  3
RTECS 番号 KI9625000
13
自然発火温度 570 °F
TSCA  Yes
HSコード  2930 90 98
国連危険物分類  3
容器等級  I
有毒物質データの 75-08-1(Hazardous Substances Data)
毒性 LD50 orally in Rabbit: 682 mg/kg
消防法 危-4-特-I
化審法 (2)-460
安衛法 57,57-2
PRTR法 第一種指定化学物質
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
H224 極めて引火性の高い液体および蒸気 引火性液体 1 危険
H225 引火性の高い液体および蒸気 引火性液体 2 危険 P210,P233, P240, P241, P242, P243,P280, P303+ P361+P353, P370+P378,P403+P235, P501
H319 強い眼刺激 眼に対する重篤な損傷性/眼刺激 性 2A 警告 P264, P280, P305+P351+P338,P337+P313P
H332 吸入すると有害 急性毒性、吸入 4 警告 P261, P271, P304+P340, P312
H335 呼吸器への刺激のおそれ 特定標的臓器毒性、単回暴露; 気道刺激性 3 警告
H370 臓器の障害 特定標的臓器有害性、単回暴露 1 危険 P260, P264, P270, P307+P311, P321,P405, P501
H400 水生生物に強い毒性 水生環境有害性、急性毒性 1 警告 P273, P391, P501
H410 長期的影響により水生生物に非常に強い毒性 水生環境有害性、慢性毒性 1 警告 P273, P391, P501
注意書き
P233 容器を密閉しておくこと。
P240 容器を接地すること/アースをとること。
P260 粉じん/煙/ガス/ミスト/蒸気/スプレーを吸入しないこ と。
P264 取扱い後は皮膚をよく洗うこと。
P264 取扱い後は手や顔をよく洗うこと。
P270 この製品を使用する時に、飲食または喫煙をしないこ と。
P271 屋外または換気の良い場所でのみ使用すること。
P280 保護手袋/保護衣/保護眼鏡/保護面を着用するこ と。
P303+P361+P353 皮膚(または髪)に付着した場合:直ちに汚染された衣 類をすべて脱ぐこと/取り除くこと。皮膚を流水/シャワー で洗うこと。
P304+P340 吸入した場合:空気の新鮮な場所に移し、呼吸しやすい 姿勢で休息させること。

エチルメルカプタン 価格 もっと(17)

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
富士フイルム和光純薬株式会社(wako) W01CHN0184.2 エタンチオール
Ethanethiol
75-08-1 1mL ¥13000 2020-09-21 購入
富士フイルム和光純薬株式会社(wako) W01ACSASTM-P-0091-04-10X エチルメルカプタン
Ethyl mercaptan, 2000 ug/mL in Toluene
75-08-1 1mL ¥13000 2021-03-23 購入
東京化成工業 E0036 エチルメルカプタン >98.0%(GC)
Ethyl Mercaptan >98.0%(GC)
75-08-1 500mL ¥7300 2021-03-23 購入
東京化成工業 E0036 エチルメルカプタン >98.0%(GC)
Ethyl Mercaptan >98.0%(GC)
75-08-1 25mL ¥3100 2021-03-23 購入
関東化学株式会社(KANTO) 11786-2A エタンチオール >99.0%
Ethanethiol >99.0%
75-08-1 50mL ¥3400 2021-03-23 購入

エチルメルカプタン 化学特性,用途語,生産方法

外観

無色~ほとんど無色, 澄明の液体

溶解性

水に微溶 (0.68g/100ml 20℃), アルコール, エーテルに可溶。水及びエタノールに溶ける。

解説

ethyl thioalcohol.C2H6S(62.14).C2H5SH.エチルチオアルコール,エチルメルカプタンともいう.ハロエタンまたは硫酸エチルカリウムに硫化水素カリウム(KSH)を作用させて合成する.悪臭のある無色の揮発性液体.融点-144 ℃,沸点35 ℃.d425"0.83147.nD20"1.431.エタノール,エーテル,アルカリ水溶液に可溶.弱酸性で,金属チオラートを生じる.空気または希硫酸によって酸化されジエチルジスルフィドを,また濃硝酸によりエタンスルホン酸を与える.アルデヒド,ケトンなどと酸の存在下で反応し,チオアセタール,チオケタールを生じる.都市ガスに臭いをつけるため,添加剤として用いられる.[CAS 75-08-1]
森北出版「化学辞典(第2版)

用途

有機合成原料。

用途

燃料用ガス,特にLPGの付臭剤として使用農薬,医薬,ゴム薬原料の合成及びエチルチオグループの製造に応用

説明

Ethane thiol, commonly known as ethyl mercaptan, is a colorless gas or clear liquid with a distinct odor. It is an organosulfur compound with the formula CH3CH2SH. Abbreviated EtSH, it consists of an ethyl group (Et), CH3CH2, attached to a thiol group, SH. Its structure parallels that of ethanol, but with S instead of O. The odor of EtSH is infamous. Ethanethiol is more volatile than ethanol due to a diminished ability to engage in hydrogen bonding. Ethanethiol is toxic. It occurs naturally as a minor component of petroleum, and may be added to other wise odorless gaseous products such as liquefied petroleum gas (LPG) to help warn of gas leaks. At these concentrations, ethanethiol is not harmful.

化学的特性

Colorless to yellow liquid; fruity, sulfur aroma.

化学的特性

colourless liquid with a penetrating,

化学的特性

Ethyl mercaptan is a yellowish liquid (or a colorless gas above the BP). Strong, sharp odor of garlic or skunklike odor.

物理的性質

Colorless liquid with a strong, disagreeable, skunk-like or rotten egg odor. Extremely flammable liquid or gas. An experimentally determined odor threshold concentration of 1 ppbv was reported by Leonardos et al. (1969). Katz and Talbert (1930) reported experimental detection odor threshold concentrations in the range 0.66–7.6 μg/m3 (0.26 to 3.0 ppbv).

使用

Ethanethiol is used as an intermediate inthe manufacture of insecticides, plastics, andantioxidants; and as an additive to natural gasto give odor. It occurs in illuminating gas andin petroleum distillates.

使用

Stenching agent for liquefied petroleum gases; adhesive stabilizer; manufacture of plastics, insecticides, and antioxidants

使用

LPG odorant, adhesive, stabilizer, chemical intermediate.

調製方法

Ethyl mercaptan is prepared by distilling ethyl potassium sulfate with potassium hydrogen sulfide. Additional mercaptans can be prepared in a similar manner with the corresponding proper ingredients.

製造方法

Ethanethiol is prepared by the reaction of ethylene with hydrogen sulfide over a catalyst. The various producers utilize different catalysts in this process. It is also be prepared commercially by the reaction of ethanol with hydrogen sulfide gas over an acidic solid catalyst, such as alumina.
Ethanethiol was originally reported by Zeiss in 1834 . Zeise treated calcium ethyl sulfate with a suspension of barium sulfide saturated with hydrogen sulfide. He is credited with naming the C2H5S- group as mercaptum.
Ethanethiol can also be prepared by a halide displacement reaction, where ethyl halide is reacted with aqueous sodium bisulfide. This conversion was demonstrated as early as 1840 by Henri Victor Regnault.

反応性

Ethane thiol is a valued reagent in organic synthesis. In the presence of sodium hydroxide, it gives the powerful nucleophile SEt-. The salt can be generated quantitatively by reaction with sodium hydride.
Ethane thiol can be oxidized to ethyl sulfonic acid, using bleach and related strong aqueous oxidants. Weaker oxidants, such as ferric oxide give the disulfide, diethyl disulfide :
2 EtSH + H2O2 → EtS-SEt + 2 H2O
Like other thiols, it behaves comparably to hydrogen sulfide. For example, it binds, concomitant with deprotonation to "soft" transition metal cations, such as Hg2+, Cu+, and Ni2+ to give polymeric thiolato complexes, Hg(SEt)2, CuSEt, and Ni(SEt)2, respectively.

Aroma threshold values

High strength odor, sulfurous fruity type; recommend smelling in a 0.01% solution or less.

一般的な説明

A clear colorless low-boiling liquid (boiling point 97°F) with an overpowering, garlic-like/skunk-like odor. Flash point -55°F. Less dense than water and very slightly soluble in water. Vapors are heavier than air. Vapors may irritate nose and throat. May be toxic if swallowed, by inhalation or by contact. Added to natural gas as an odorant. Used as a stabilizer for adhesives.

空気と水の反応

Highly flammable. A very dangerous fire hazard. Very slightly soluble in water.

反応プロフィール

Ethanethiol reacts violently with calcium hypochlorite, May react vigorously with other oxidizing reagents. On contact with strong acids or when heated to decomposition Ethanethiol emits highly toxic fumes of sulfur oxides [Sax, 9th ed., 1996, p. 1575].

危険性

Toxic by ingestion and inhalation. Flammable, dangerous fire risk.

健康ハザード

The inhalation toxicity of ethanethiol islower than that of methanethiol. Intraperitoneal administration in rats at sublethaldoses caused deep sedation, followed bylethargy, restlessness, lack of muscular coordination, and skeletal muscle paralysis.Higher doses produced cyanosis, kidney andliver damage, respiratory depression, coma,and death. The intraperitoneal LD50 value inrats was 450 mg/kg (ACGIH 1986).
Ethanethiol is metabolized to inorganicsulfate and ethyl methyl sulfone, and excreted. The oral LD50 value in rats is 680 mg/kg.
In humans, repeated exposures to itsvapors at about 5 ppm concentration canproduce irritation of the nose and throat,headache, fatigue, and nausea.

健康ハザード

Inhalation of vapor causes muscular weakness, convulsions, respiratory paralysis. High concentrations may cause pulmonary irritation. Liquid irritates eyes and skin. Ingestion causes nausea and irritation of mouth and stomach.

化学反応性

Reactivity with Water No reaction; Reactivity with Common Materials: No reaction; Stability During Transport: Stable; Neutralizing Agents for Acids and Caustics: Not pertinent; Polymerization: Not pertinent; Inhibitor of Polymerization: Not pertinent.

安全性プロファイル

Moderately toxic by ingestion, inhalation, and intraperitoneal routes. A skin and eye irritant. Inhalation causes central nervous system effects in humans. A very dangerous fire hazard when exposed to heat or flame; can react vigorously with oxidizing materials. A moderate explosion hazard when exposed to spark or flame. Violent reaction with Ca(OCl)2. Will react with water or steam to produce toxic and flammable vapors. To fight fire, use CO2, dry chemical. When heated to decomposition or on contact with acid or acid fumes it emits hghly toxic fumes of SOx. See also MERCAPTANS.

職業ばく露

This material is used as a warning odorant for liquefied petroleum gases. It is used as an intermediate in the manufacture of many pesticides and other organic chemicals

環境運命予測

Biological. Ethyl mercaptan did not degrade in anaerobic sediments and sludges nor in anaerobic freshwater conditions (van Leerdam et al., 2006).
Photolytic. A second-order rate constant of 1.21 x 10-12 cm3/molecule?sec was reported for the reaction of ethyl mercaptan and NO3 radicals in the atmosphere at 297 K (Atkinson, 1991).
Chemical/Physical. In the presence of nitric oxide, ethyl mercaptan reacted with OH radicals forming ethyl thionitrite. The rate constant for this reaction is 2.7 x 10-11 at 20 °C (MacLeod et al., 1984).

輸送方法

UN2363 Ethyl mercaptan, Hazard Class: 3; Labels: 3-Flammable liquid

純化方法

Dissolve the thiol in aqueous 20% NaOH, extract it with a small amount of *benzene and then steam distil until clear. After cooling, the alkaline solution is acidified slightly with 15% H2SO4 and the thiol is distilled off, dried with CaSO4, CaCl2 or 4A molecular sieves, and fractionally distilled under nitrogen [Ellis & Reid J Am Chem Soc 54 1674 1932]. It has a foul odour. [Beilstein 1 IV 1390.]

不和合性

May form explosive mixture with air. Slowly forms peroxides. This material is a weak acid. Reacts with oxidizers, causing fire and explosion hazard. Reacts with strong acids evolving toxic and flammable hydrogen sulfide. May accumulate static electrical charges, and may cause ignition of its vapors. Attacks some forms of plastics, coatings and rubber. Aldehydes are frequently involved in self-condensation or polymerization reactions. These reactions are exothermic; they are often catalyzed by acid. Aldehydes are readily oxidized to give carboxylic acids. Flammable and/or toxic gases are generated by the combination of aldehydes with azo, diazo compounds, dithiocarbamates, nitrides, and strong reducing agents. Aldehydes can react with air to give first peroxo acids, and ultimately carboxylic acids. These autoxidation reactions are activated by light, catalyzed by salts of transition metals, and are autocatalytic (catalyzed by the products of the reaction). The addition of stabilizers (antioxidants) to shipments of aldehydes retards autoxidation

廃棄物の処理

Incineration (1093℃) followed by scrubbing with a caustic solution

エチルメルカプタン 上流と下流の製品情報

原材料

準備製品


エチルメルカプタン 生産企業

Global( 163)Suppliers
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75-08-1(エチルメルカプタン)キーワード:


  • 75-08-1
  • MERCAPTAN C2
  • EM(TM) RT
  • ETHYL MERCAPTAN
  • ETHANETHIOL
  • Mercaptan C2
  • Ethylmercaptan,98%
  • ETHYL MERCAPTAN 99WT% MIN
  • 1-Mercaptoethane
  • Aethanethiol
  • Aethylmercaptan
  • C2H5SH
  • Etantiolo
  • Ethaanthiol
  • Ethyl hydrosulfide
  • Ethyl sulfhydrate
  • Ethyl thioalcohol
  • ethylhydrosulfide
  • Ethylmercaphtan
  • Ethylmercaptaan
  • Ethylmercaptane
  • ETHANETHIOL(ETHYL MERCAPTAN), 1000MG, NEAT
  • ETHYLMERCAPTAN (EM), EIN PRODUKT VON ELF
  • ETHANETHIOL 15% IN TRICHLOROFLUOROMETHANE
  • ETHANETHIOL 99+%
  • THIOETHYL ALCOHOL
  • Ethanethiol,97%
  • Ethanethiol, tech., 98%, 15% in dichlorotrifluoroethane
  • 1-ETHANETHIOL
  • Ethanthiol
  • etantiolol
  • エチルメルカプタン
  • チオエチルアルコール
  • エチルチオアルコール
  • エチルチオール
  • 1-エタンチオール
  • エチルスルフヒドラート
  • チオエタノール
  • メルカプトエタン
  • エタン-1-チオール
  • エタンチオール
  • エチルメルカプタン (エタンチール)
  • メルカプタン(エチルメルカプタン)
  • エチルメルカプタン, 2000 µg/mL in Toluene
  • エタンチオ-ル
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