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메틸에틸케톤

메틸에틸케톤
메틸에틸케톤 구조식 이미지
카스 번호:
78-93-3
한글명:
메틸에틸케톤
동의어(한글):
2-부탄온;3-부탄온;메틸아세톤;부탄은;에틸메틸케톤;메틸에틸케톤;부탄온;솔벤트#3(SCOTCH-GRIP;스타본드C-신나;제거제;크리너(OATEYCLEANER;2-부탄논;메틸에틸케톤;엠이케이
상품명:
2-Butanone
동의어(영문):
MEK;Meetco;Butanon;BUTANONE;Meketone;OMNISOLV;2-Butanon;2-butanal;FEMA 2170;C2H5COCH3
CBNumber:
CB4854386
분자식:
C4H8O
포뮬러 무게:
72.11
MOL 파일:
78-93-3.mol

메틸에틸케톤 속성

녹는점
-87 °C
끓는 점
80 °C(lit.)
밀도
0.806
증기 밀도
2.49 (vs air)
증기압
71 mm Hg ( 20 °C)
굴절률
n20/D 1.379(lit.)
FEMA
2170 | 2-BUTANONE
인화점
26 °F
저장 조건
2-8°C
용해도
Miscible with acetone, ethanol, benzene, ether (U.S. EPA, 1985), and many other solvents, particularly ketones and aldehydes
산도 계수 (pKa)
14.7 (quoted, Riddick et al., 1986)
물리적 상태
Solution
색상
Colorless
냄새
Sweet/sharp odor detectable at 2 to 85 ppm (mean = 16 ppm)
수소이온지수(pH)
pH(1+4, 25℃):6.0~7.0
상대극성
0.327
폭발한계
1.8-11.5%(V)
수용성
290 g/L (20 ºC)
Merck
14,6072
JECFA Number
278
BRN
741880
Henry's Law Constant
23.0 at 50.00 °C, 34.1 at 60.00 °C, 50.6 at 70.00 °C, 70.4 at 80.00 °C (headspace-GC, Hovorka et al., 2002)
노출 한도
TLV-TWA, PEL 590 mg/m3 (200 ppm) (ACGIH, OSHA); STEL 885 mg/m3 (300 ppm) (ACGIH); IDLH 3000 ppm (NIOSH).
안정성
Stable. Highly flammable. Incompatible with oxidizing agents, bases, strong reducing agents. Protect from moisture.
CAS 데이터베이스
78-93-3(CAS DataBase Reference)
NIST
2-Butanone(78-93-3)
EPA
2-Butanone(78-93-3)
안전
  • 위험 및 안전 성명
  • 위험 및 사전주의 사항 (GHS)
위험품 표기 F,Xi,T
위험 카페고리 넘버 11-36-66-67-39/23/24/25-23/24/25
안전지침서 9-16-45-36/37
유엔번호(UN No.) UN 1193 3/PG 2
WGK 독일 1
RTECS 번호 EL6475000
자연 발화 온도 516 °C
TSCA Yes
위험 등급 3
포장분류 II
HS 번호 29141200
유해 물질 데이터 78-93-3(Hazardous Substances Data)
독성 LD50 orally in rats: 6.86 ml/kg (Smyth)
그림문자(GHS):
신호 어: Danger
유해·위험 문구:
암호 유해·위험 문구 위험 등급 범주 신호 어 그림 문자 P- 코드
H225 고인화성 액체 및 증기 인화성 액체 구분 2 위험 P210,P233, P240, P241, P242, P243,P280, P303+ P361+P353, P370+P378,P403+P235, P501
H319 눈에 심한 자극을 일으킴 심한 눈 손상 또는 자극성 물질 구분 2A 경고 P264, P280, P305+P351+P338,P337+P313P
H336 졸음 또는 현기증을 일으킬 수 있음 특정표적장기 독성 물질(1회 노출);마취작용 구분 3 경고 P261, P271, P304+P340, P312,P403+P233, P405, P501
예방조치문구:
P210 열·스파크·화염·고열로부터 멀리하시오 - 금연 하시오.
P261 분진·흄·가스·미스트·증기·...·스프레이의 흡입을 피하시오.
P303+P361+P353 피부(또는 머리카락)에 묻으면 오염된 모든 의복은 벗거나 제거하시오 피부를 물로 씻으시오/샤워하시오.
P305+P351+P338 눈에 묻으면 몇 분간 물로 조심해서 씻으시오. 가능하면 콘택트렌즈를 제거하시오. 계속 씻으시오.
P405 밀봉하여 저장하시오.

메틸에틸케톤 MSDS


2-Butanone

메틸에틸케톤 C화학적 특성, 용도, 생산

개요

무색투명한 저비점 가연성 액체로서 Butene-2의 수화반응에 의해 생산됨. 알코올 및 에테르에 쉽게 용해되며 물에도 용해되는 성질을 가지고 있고 휘발성이 강해 그 용도가 매우 다양함.

용도

특히 표면코 팅산업에 많이 사용되는데 주로 Nitro Cellulose, 페인트 및 잉크제조 등에 쓰이며 각종 수지를 만 드는 과정에 사용됨. 또한 접착제와 고무 시멘트 용제로 적합하며 윤활유 추출과 산화방지제, 합성 수지, 향수, 촉매제조의 중간물질및 마그네틱 테이프 제조시 사용됨.

용도

저비점 유기 용제에서 메틸 에틸 케톤은 탁월한 용해력과 건조 특성으로 유명합니다. 그것은 주로 폴리 우레탄 수지, PU 가죽 및 모방 가죽, 본드, 코팅, 윤활유 dewaxing, 인쇄 잉크, 자기 기록 재료 등 산업에 사용되는, 그것은 또한 중요한 정밀 화학 원료입니다.

개요

2-Butanone is a stable, highly flammable chemical. It is incompatible with oxidising agents, bases, and strong reducing agents. It is a colourless liquid with a sharp, sweet odour. 2-Butanone is produced in large quantities. It is used as a solvent and nearly half of its use is in paints and other coatings because it will quickly evaporate into the air and it dissolves many substances. It is also used in glues and as a cleaning agent.

화학적 성질

2-Butanone is a stable, highly flammable chemical. It is incompatible with oxidizing agents, bases, and strong reducing agents. It is a colorless liquid with a sharp, sweet odor. 2-Butanone is produced in large quantities. It is used as a solvent and nearly half of its use is in paints and other coatings because it quickly evaporates into the air and it dissolves many substances. It is also used in glues and as a cleaning agent.

화학적 성질

colourless liquid

화학적 성질

MEK is a clear, colorless liquid. Fragrant, mint-like, moderately sharp odor.

화학적 성질

2-Butanone is a liquid with a sweet apricot-like odor.

물리적 성질

Clear, colorless, volatile, very flammable liquid with a sweet, mint or acetone-like odor. Odor threshold concentration is 10.0 ppmv (Leonardos et al., 1969). Experimentally determined detection and recognition odor threshold concentrations were 5.8 mg/m3 (2.0 ppmv) and 16 mg/m3 (5.4 ppmv), respectively (Hellman and Small, 1974).

출처

Reported found as an impurity among products from the dry distillation of wood and in the oil (extracted with ether) of black tea; it is also present in coffee, cheese, bread, some citrus oils and some other natural products (grape, raspberry).

용도

Methyl ethyl ketone (MEK) is used in themanufacture of smokeless powder and colorless synthetic resins, as a solvent, and insurface coating. It is also used as a flavoringsubstance in food.

용도

As solvent; in the surface coating industry; manufacture of smokeless powder; colorless synthetic resins.

용도

2-Butanone is an eye irritant that has been used as a water soluble photoinitiator for the photopolymerization of methacrylic acid (MAA).

정의

ChEBI: A dialkyl ketone that is a four-carbon ketone carrying a single keto- group at position C-2.

정의

A colorless volatile liquid ketone. It is manufactured by the oxidation of butane and used as a solvent.

제조 방법

By catalytic dehydrogenation of secondary butyl alcohol; by dehydration of butane-2,3-diol by refluxing with 25% aqueous H2SO4. Industrially, it is also prepared by controlled oxidation of butane, by dry distillation of calcium acetate and calcium propionate, or by refluxing methyl acetoacetate and diluted H2SO4.

Taste threshold values

Taste characteristics at 5 ppm: chemical-like and slightly fruity green.

일반 설명

Methyl ethyl ketone (MEK) is a colourless liquid with a sweet and sharp odour. It is soluble in alcohol, ether, acetone benzene, and water. It is a solvent often found in mixtures with acetone, ethyl acetate, n-hexane, toluene, or alcohols. It has applications in the surface coating industry and in the de-waxing of lubricating oils. MEK is used in the manufacture of colourless synthetic resins, artificial leather, rubbers, lacquers, varnishes, and glues.

공기와 물의 반응

Highly flammable. Slightly soluble in water.

반응 프로필

Amines are chemical bases. They neutralize acids to form salts plus water. These acid-base reactions are exothermic. The amount of heat that is evolved per mole of amine in a neutralization is largely independent of the strength of the amine as a base. Amines may be incompatible with isocyanates, halogenated organics, peroxides, phenols (acidic), epoxides, anhydrides, and acid halides. Flammable gaseous hydrogen is generated by amines in combination with strong reducing agents, such as hydrides. Ketones are reactive with many acids and bases liberating heat and flammable gases (e.g., H2). The amount of heat may be sufficient to start a fire in the unreacted portion of the ketone. Ketones react with reducing agents such as hydrides, alkali metals, and nitrides to produce flammable gas (H2) and heat. Ketones are incompatible with isocyanates, aldehydes, cyanides, peroxides, and anhydrides. They react violently with aldehydes, HNO3, HNO3 + H2O2, and HClO4.

위험도

Flammable, dangerous fire risk. Toxic by ingestion.

건강위험

Occupational workers are exposed to 2-butanone by breathing contaminated air in workplaces associated with the production or use of paints, glues, coatings, or cleaning agents. Prolonged exposures to 2-butanone cause symptoms of poisoning such as cough, dizziness, drowsiness, headache, nausea, vomiting, dermatitis, irritation of the nose, throat, skin, and eyes and at very high levels cause drooping eyelids, uncoordinated muscle movements, loss of consciousness, and birth defects. Chronic inhalation studies in animals have reported slight neurological, liver, kidney, and respiratory effects. However, information on the chronic (long-term) effects of 2-butanone (methyl ethyl ketone) in humans is limited.

건강위험

May cause toxic effects if inhaled or ingested/swallowed. Contact with substance may cause severe burns to skin and eyes. Fire will produce irritating, corrosive and/or toxic gases. Vapors may cause dizziness or suffocation. Runoff from fire control or dilution water may cause pollution.

건강위험

Inhalation of MEK can cause irritation ofthe eyes and nose and headache. Exposureto 300 ppm for several hours may have amildly irritating effect on humans. At highconcentrations it is narcotic. Ingestion cancause dizziness and vomiting. Serious illeffects from poisoning is low.
LD50 value, oral (rats): 5500 mg/kg
Odor threshold detection: 10 ppm.

건강위험

The acute toxicity of methyl ethyl ketone is low. Exposure to high concentrations can cause headache, dizziness, drowsiness, vomiting, and numbness of the extremities. Irritation of the eyes, nose, and throat can also occur. Methyl ethyl ketone is considered to have adequate warning properties.
Repeated or prolonged skin exposure to methyl ethyl ketone can cause defatting of the skin, leading to cracking, secondary infection, and dermatitis. This compound has not been found to be carcinogenic or to show reproductive or developmental toxicity in humans. Methyl ethyl ketone has exhibited developmental toxicity in some animal tests

화재위험

Methyl ethyl ketone is extremely flammable (NFPA rating = 3), and its vapor can travel a considerable distance to an ignition source and "flash back." MEK vapor forms explosive mixtures with air at concentrations of 1.9 to 11% (by volume). Carbon dioxide or dry chemical extinguishers should be used for MEK fires

화재위험

Flammable/combustible material. May be ignited by heat, sparks or flames. Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion hazard indoors, outdoors or in sewers. Runoff to sewer may create fire or explosion hazard. Containers may explode when heated. Many liquids are lighter than water.

인화성 및 폭발성

Methyl ethyl ketone is extremely flammable (NFPA rating = 3), and its vapor can travel a considerable distance to an ignition source and "flash back." MEK vapor forms explosive mixtures with air at concentrations of 1.9 to 11% (by volume). Carbon dioxide or dry chemical extinguishers should be used for MEK fires.

화학 반응

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.

Safety Profile

Moderately toxic by ingestion, skin contact, and intraperitoneal routes. Human systemic effects by inhalation: conjunctiva irritation and unspecified effects on the nose and respiratory system. An experimental teratogen. A strong irritant. Human eye irritation @ 350 ppm. Affects peripheral nervous system and central nervous system. Highly flammable liquid. Reaction with hydrogen peroxide + nitric acid forms a heatand shock-sensitive explosive product. Ignition on contact with potassium tert-butoxide. Mixture with 2- propanol will produce explosive peroxides during storage. Vigorous reaction with chloroform + alkali. Incompatible with chlorosulfonic acid, oleum. To fight fire, use alcohol foam, CO2, dry chemical. Used in production of drugs of abuse. When heated to decomposition it emits acrid smoke and fumes.

잠재적 노출

MEK is used as a solvent in nitrocellulose coating and vinyl film manufacture; in smokeless powder manufacture; in cements and adhesives and in the dewaxing of lubricating oils. It is also an intermediate in drug manufacture

Source

Improper disposal of cleaning fluids, adhesives, paints, and lacquers, and laboratory solvent. Leaches from PVC cement used to join tubing (Wang and Bricker, 1979). Also present in cigarette smoke (500 ppm) and exhaust from gasoline-powered engines (<0.1–2.6 ppm) (Verschueren, 1983).
Gas-phase tailpipe emission rates from California Phase II reformulated gasoline-powered automobiles with and without catalytic converters were 0.47 and 32 mg/km, respectively (Schauer et al., 2002).
Schauer et al. (2001) measured organic compound emission rates for volatile organic compounds, gas-phase semi-volatile organic compounds, and particle phase organic compounds from the residential (fireplace) combustion of pine, oak, and eucalyptus. The gas-phase emission rates of 2-butanone were 215 mg/kg of pine burned, 115 mg/kg of oak burned, and 77 mg/kg of eucalyptus burned.

환경귀착

Biological. Following a lag time of approximately 5 h, 2-butanone degraded in activated sludge (30 mg/L) at a rate constant ranging from 0.021 to 0.025/h (Urano and Kato, 1986).
Bridié et al. (1979) reported BOD and COD values of 2.03 and 2.31 g/g using filtered effluent from a biological sanitary waste treatment plant. These values were determined using a standard dilution method at 20 °C for a period of 5 d. The ThOD for 2-butanone is 2.44 g/g. Using the BOD technique to measure biodegradation, the mean 5-d BOD value (mM BOD/mM 2-butanone) and ThOD were 3.23 and 58.7%, respectively (Vaishnav et al., 1987).
Photolytic. Synthetic air containing gaseous nitrous acid and exposed to artificial sunlight (λ = 300–450 nm) photooxidized 2-butanone into peroxyacetyl nitrate and methyl nitrate (Cox et al., 1980). They reported a rate constant of 2.6 x 10-12 cm3/molecule?sec for the reaction of gaseous 2- butane with OH radicals based on a value of 8 x 10-12 cm3/molecule?sec for the reaction of ethylene with OH radicals.
The OH radical-initiated photooxidation of 2-butanone in a smog chamber produced peroxyacetyl nitrate and acetaldehyde (Cox et al., 1981). Reported rate constants for the reaction of 2-butanone with OH radicals in the atmosphere and in water are 1.15 x 10-13 and 1.50 x 10-13 cm3/molecule?sec, respectively (Wallington and Kurylo, 1987; Wallington et al., 1988a). The rate constant for the reaction of 2-butanone and OH radicals in the atmosphere at 300 K is 2.0 x 10-12 cm3/molecule?sec (Hendry and Kenley, 1979). Cox et al. (1981) reported a photooxidation half-life of 2.3 d for the reaction of 2-butanone and OH radicals in the atmosphere.
Chemical/Physical. 2-Butanone will not hydrolyze because it has no hydrolyzable functional group (Kollig, 1993).
Combustion in air will produce carbon monoxide (incomplete combustion), carbon dioxide, and water vapor.
At an influent concentration of 1.0 g/L, treatment with GAC resulted in an effluent concentration of 532 mg/L. The adsorbability of the carbon used was 94 mg/g carbon (Guisti et al., 1974).

저장

2-Butanone should be protected from moisture.

운송 방법

UN1193 Methyl ethyl ketone or Ethyl methyl ketone, Hazard Class: 3; Labels: 3-Flammable liquid.

비 호환성

May form explosive mixture with air. Violent reaction with strong oxidizers, amines, ammonia, inorganic acids; caustics, isocyanates, pyridines. Incompatible with potassium tert-butoxide, 2-propanol, chlorosulfonic acid; oleum. Attacks some plastics. Ketones are incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides, nitrated amines, azo, diazo, azido compounds, carbamates, organic cyanates

폐기물 처리

Consult with environmental regulatory agencies for guidance on acceptable disposal practices. Generators of waste containing this contaminant (≥100 kg/mo) must conform to EPA regulations governing storage, transportation, treatment, and waste disposal. Incineration

주의 사항

2-Butanone vapor and air mixtures are explosive. It reacts violently with strong oxidants and inorganic acids causing fi re and explosion hazard.

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