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酢酸メチル [標準物質]

酢酸メチル [標準物質] 化学構造式
79-20-9
CAS番号.
79-20-9
化学名:
酢酸メチル [標準物質]
别名:
酢酸メチル [標準物質];酢酸メチル;エタン酸メチル;デボトン;メチルアセタート;テレトン;メチル=アセタート;酢酸メチルエステル;酢酸メチル [GC用標準物質];酢酸メチル標準品;酢酸メチル REAGENTPLUS,99%
英語化学名:
Methyl acetate
英語别名:
Metile;Tereton;Devoton;FEMA 2676;CH3COOCH3;octanmetylu;Methylacetat;Methylacetaat;METHYL ACETATE;Acetic acid-Me
CBNumber:
CB9167443
化学式:
C3H6O2
分子量:
74.08
MOL File:
79-20-9.mol

酢酸メチル [標準物質] 物理性質

融点 :
-98 °C
沸点 :
57-58 °C(lit.)
比重(密度) :
0.932 g/mL at 25 °C(lit.)
蒸気密度:
2.55 (vs air)
蒸気圧:
165 mm Hg ( 20 °C)
屈折率 :
n20/D 1.361(lit.)
FEMA :
2676 | METHYL ACETATE
闪点 :
3.2 °F
貯蔵温度 :
Flammables area
溶解性:
250g/l
外見 :
Solution
色:
Clear colorless to slightly pale yellow
Relative polarity:
0.253
臭い (Odor):
Slightly acrid, sweet; fragrant.
爆発限界(explosive limit):
3.1-16%(V)
水溶解度 :
250 g/L (20 ºC)
極大吸収波長 (λmax):
λ: 255 nm Amax: 1.0
λ: 275 nm Amax: 0.1
λ: 300 nm Amax: 0.01
Merck :
14,6008
JECFA Number:
125
BRN :
1736662
暴露限界値:
TLV-TWA 200 ppm (~610 mg/m3) (ACGIH, MSHA, and OSHA); TLV-STEL 250 ppm (~760 mg/m3) (ACGIH); IDLH 10,000 ppm (NIOSH).
安定性::
Stable. Extremely flammable - readily forms explosive mixtures with air. Note low flash point and wide explosion limits. Incompatible with strong oxidizing agents, strong bases, strong acids, nitrates. May be moisture sensitive.
CAS データベース:
79-20-9(CAS DataBase Reference)
NISTの化学物質情報:
Acetic acid, methyl ester(79-20-9)
EPAの化学物質情報:
Acetic acid, methyl ester(79-20-9)
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,Xi
Rフレーズ  11-36-66-67
Sフレーズ  16-26-29-33
RIDADR  UN 1231 3/PG 2
WGK Germany  1
RTECS 番号 AI9100000
自然発火温度 936 °F
TSCA  Yes
HSコード  2915 39 00
国連危険物分類  3
容器等級  II
有毒物質データの 79-20-9(Hazardous Substances Data)
毒性 LD50 orally in Rabbit: > 5000 mg/kg LD50 dermal Rat > 2000 mg/kg
消防法 危険物第4類第一石油類(非水溶性)
化審法 (2)-725
安衛法 有機則 第二種有機溶剤等
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
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
H336 眠気やめまいのおそれ 特定標的臓器毒性、単回暴露; 麻酔作用 3 警告 P261, P271, P304+P340, P312,P403+P233, P405, P501
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。
P261 粉じん/煙/ガス/ミスト/蒸気/スプレーの吸入を避ける 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。
P305+P351+P338 眼に入った場合:水で数分間注意深く洗うこと。次にコ ンタクトレンズを着用していて容易に外せる場合は外す こと。その後も洗浄を続けること。
P337+P313 眼の刺激が続く場合:医師の診断/手当てを受けること。
P370+P378 火災の場合:消火に...を使用すること。
P403+P235 換気の良い場所で保管すること。涼しいところに 置くこと。
P405 施錠して保管すること。

酢酸メチル [標準物質] 価格 もっと(33)

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) W01CHDASB-00013417 酢酸メチル
Methyl Acetate
79-20-9 100mg ¥20200 2018-12-26 購入
富士フイルム和光純薬株式会社(wako) W01CHDASB-00013417 酢酸メチル
Methyl Acetate
79-20-9 1g ¥40300 2018-12-26 購入
東京化成工業 S0300 酢酸メチル [GC用標準物質] >99.5%(GC)
Methyl Acetate [Standard Material for GC] >99.5%(GC)
79-20-9 5mL ¥11300 2018-12-04 購入
関東化学株式会社(KANTO) 25177-01 酢酸メチル >99.0%(GC)
Methyl acetate >99.0%(GC)
79-20-9 500mL ¥1700 2018-12-13 購入
関東化学株式会社(KANTO) 25177-00 酢酸メチル >99.5%(GC)
Methyl acetate >99.5%(GC)
79-20-9 500mL ¥2500 2018-12-13 購入

酢酸メチル [標準物質] 化学特性,用途語,生産方法

外観

無色澄明の液体

定義

本品は、酢酸とメタノールのエステルであり、次の化学式で表される。

溶解性

エタノール及びジエチルエーテルに極めて溶けやすく、水に溶けやすい。

用途

環境ホルモン物質であるアルキルフェノール類およびビスフェノールAを分析する際に、抽出溶媒として用いられます。

用途

溶剤(香料、ニトロセルロース、合成樹脂、塗料他)

用途

溶剤。

用途

合成反応用溶剤、塗料?印刷インキ用溶剤、マニキュア、ラッカー、香料の溶剤

化粧品の成分用途

溶剤、香料

主な用途

ソルベントMEは酢酸メチル約80%とメタノール約20%の混合溶剤です。主に塗料用溶剤や洗缶用溶剤として使用されています。

説明

Methyl acetate, also known as Me O Ac , acetic acid methyl ester or methyl ethanoate, is a carboxylate ester with the formula CH3COOCH3. It is a flammable liquid with a characteristically pleasant smell reminiscent of some glues and nail polish removers. Methyl acetate is occasionally used as a solvent, being weakly polar and lipophilic, but its close relative ethyl acetate is a more common solvent being less toxic and less soluble in water. Methyl acetate has a solubility of 25% in water at room temperature. At elevated temperature its solubility in water is much higher. Methyl acetate is not stable in the presence of strong aqueous bases or aqueous acids. Methyl acetate is VOC exempt.

化学的特性

colourless liquid with a pleasant odour

化学的特性

Methyl acetate is a colorless liquid with a fruity odor.

使用

Solvent for nitrocellulose, acetylcellulose, and many resins and oils; manufacture of artificial leather.

使用

Methyl acetate is used as a solvent forlacquers, resins, oils, and nitrocellulose; inpaint removers; as a flavoring agent; and inthe manufacture of artificial leather.

製造方法

Methyl acetate is produced industrially via the carbonylation of methanol as a byproduct of the production of acetic acid.Methyl acetate also arises by esterification of acetic acid with methanol in the presence of strong acids such as sulfuric acid, this production process is famous because of Eastman Kodak's intensified process using a reactive distillation.
2–1-Reactions
In the presence of strong bases such as sodium hydroxide or strong acids such as hydrochloric acid or sulfuric acid it is hydrolyzed back into methanol and acetic acid, especially at elevated temperature. The conversion of methyl acetate back into its components, by an acid , is a first-order reaction with respect to the ester. The reaction of methyl acetate and a base, for example sodium hydroxide, is a second-order reaction with respect to both reactants.
3-Applications
A major use of methyl acetate is as a volatile low toxicity solvent in glues, paints, and nail polish removers. Acetic anhydride is produced by carbonylation of methyl acetate in a process that was inspired by the Monsanto acetic acid synthesis.

一般的な説明

A clear colorless liquid with a fragrant odor. Moderately toxic. Flash point 14°F. Vapors heavier than air.

空気と水の反応

Highly flammable. Water soluble.

反応プロフィール

Methyl acetate presents a fire or explosion hazard when exposed to strong oxidizing agents. Emits irritating fumes and acrid smoke when heated to decomposition, [Lewis, 3rd ed., 1993, p. 826]. Methyl acetate reactivity is consistent with other compounds of the ester group.

危険性

Flammable, dangerous fire and explosion risk, explosive limits in air 3–16%. Irritant to respiratory tract. Headache, dizziness, nausea, eye damage (degeneration of ganglion cells in the retina).

健康ハザード

(Very similar to those of methyl alcohol, which constitutes 20% of commercial grade.) Inhalation causes headache, fatigue, and drowsiness; high concentrations can produce central nervous system depression and optic nerve damage. Liquid irritates eyes and may cause defatting and cracking of skin. Ingestion causes headache, dizziness, drowsiness, fatigue; may cause severe eye damage.

健康ハザード

The toxic effects from exposure to methylacetate include inflammation of the eyesvisual and nervous disturbances, tightnessof the chest, drowsiness, and narcosis. Ithydrolyzes in body to methanol, which prob ably produces the atrophy of the optic nerve.A 4-hour exposure to 32,000 ppm was lethalto rats. Oral and dermal toxicities of thiscompound are low. An oral LD50 value inrats is on the order of 5000 mg/kg.

火災危険

Flash Point (°F): 22 ℃; 14 ℃; Flammable Limits in Air (%): 3.1-16; Fire Extinguishing Agents: Dry chemical, alcohol foam, carbon dioxide; Fire Extinguishing Agents Not To Be Used: Water may be ineffective;Special Hazards of Combustion Products: Not pertinent; Behavior in Fire: Vapor is heavier than fire and may travel a considerable distance to a source of ignition and flash back; Ignition Temperature (°F): 935; Electrical Hazard: Data not available; Burning Rate: 3.7 mm/min.

火災危険

Behavior in Fire: Vapor is heavier than air and may travel a considerable distance to a source of ignition and flash back.

化学反応性

Reactivity with Water Reacts slowly to form acetic acid and methyl alcohol; the reaction is not violent; 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 several routes. A human systemic irritant by inhalation. A moderate skin and eye irritant. Mutation data reported. Dangerous fire hazard when exposed to heat, flame, or oxidizers. Moderate explosion hazard when exposed to heat or flame. When heated to decomposition it emits acrid smoke and fumes. See also ESTERS.

職業ばく露

Methyl acetate is used as a solvent in lacquers and paint removers; and as an intermediate in pharmaceutical manufacture.

応急処置

If this chemical gets into the eyes, remove any contact lenses at once and irrigate immediately for at least 15 minutes, occasionally lifting upper and lower lids. Seek medical attention immediately. If this chemical contacts the skin, remove contaminated clothing and wash immediately with soap and water. Seek medical attention immediately. If this chemical has been inhaled, remove from exposure, begin rescue breathing (using universal precautions, including resuscitation mask) if breathing has stopped and CPR if heart action has stopped. Transfer promptly to a medical facility. When this chemical has been swallowed, get medical attention. Give large quantities of water and induce vomiting. Do not make an unconscious person vomit. Medical observation is recommended for 24 to 48 hours after breathing overexposure, as pulmonary edema may be delayed. As first aid for pulmonary edema, a doctor or authorized paramedic may consider administering a drug or other inhalation therapy.

輸送方法

UN1231 Methyl acetate, Hazard Class: 3; Labels: 3-Flammable liquid.

純化方法

Methanol in methyl acetate can be detected by measuring its solubility in water. At 20o, the solubility of methyl acetate in water is ca 35g per 100mL, but 1% MeOH confers complete miscibility. Methanol can be removed by conversion to methyl acetate, by refluxing for 6hours with acetic anhydride (85mL/L), followed by fractional distillation. Acidic impurities can be removed by shaking with anhydrous K2CO3 and distilling. An alternative treatment is with acetyl chloride, followed by washing with concentrated NaCl and drying with CaO or MgSO4. (Solid CaCl2 cannot be used because it forms a crystalline addition compound.) Distillation from copper stearate destroys peroxides. Free alcohol or acid can be eliminated from methyl acetate by shaking with strong aqueous Na2CO3 or K2CO3 (three times), then with aqueous 50% CaCl2 (three times), saturated aqueous NaCl (twice), drying with K2CO3 and distilling it from P2O5. [Beilstein 2 IV 122.]

不和合性

Vapor may form explosive mixture with air. A Strong reducing agent. Incompatible water, acids, nitrates, strong oxidizers; alkalis. Attacks some plastics. Attacks many metals in presence of water. Reacts slowly with water, forming acetic acid and methanol. Decomposes in heat; on contact with air, bases, strong oxidizers; UV-light; possible fire and explosion hazard

廃棄物の処理

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.

酢酸メチル [標準物質] 上流と下流の製品情報

原材料

準備製品


酢酸メチル [標準物質] 生産企業

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79-20-9(酢酸メチル [標準物質])キーワード:


  • 79-20-9
  • Metile (acetato di)
  • metile(acetatodi)
  • octanmetylu
  • octanmetylu(polish)
  • Tereton
  • ACETIC ACID METHYL ESTER
  • METHYL ACETATE
  • LABOTEST-BB LT00785639
  • FEMA 2676
  • METHYL ACETATE, REAGENTPLUS, 99%
  • METHYL ACETATE PURE
  • METHYL ACETATE, FOR HPLC
  • METHYL ACETATE, ANHYDROUS, 99.5%
  • METHYL ACETATE, STANDARD FOR GC
  • METHYL ACETATE, GC STANDARD
  • MethylAcetate,Certified
  • MethylAcetateForSynthesis
  • Methylacetate,99%
  • Methyl acetate, extra pure, 99%
  • Methyl acetate, water <50 ppm, extra dry, 99+%
  • METHYLACETATE,REAGENT
  • Ethanoic acid methyl
  • Methyl acetate,99+%,Extra Dry
  • Methyl acetate,CH3COOCH3
  • Methyl acetate >=99.0%
  • Methyl Acetate [Standard Material for GC]
  • Methyl acetate, AcroSeal, Extra Dry, 99+%
  • Methyl acetate, synthesis grade
  • Methyl Acetate (1.2 mL/ampule
  • Methyl Acetate 
  • 酢酸メチル [標準物質]
  • 酢酸メチル
  • エタン酸メチル
  • デボトン
  • メチルアセタート
  • テレトン
  • メチル=アセタート
  • 酢酸メチルエステル
  • 酢酸メチル [GC用標準物質]
  • 酢酸メチル標準品
  • 酢酸メチル REAGENTPLUS,99%
  • 分析化学
  • 脂肪酸メチルエステル (GC用標準物質)
  • GC用標準物質
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