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메틸이소부틸케톤

메틸이소부틸케톤
메틸이소부틸케톤 구조식 이미지
카스 번호:
108-10-1
한글명:
메틸이소부틸케톤
동의어(한글):
메틸아이소부틸케톤;2-메틸프로필메틸케톤;헥손;4-메틸-2-펜탄온;메틸아이소뷰틸케톤;메틸이소부틸케톤;메틸이소뷰틸케톤;이소부틸메틸케톤;이소프로필아세톤;4-메틸-2-펜타논;메틸이소부틸케톤;미비케이
상품명:
4-Methyl-2-pentanone
동의어(영문):
MIK;MIBK;MIKB;Hexon;HEXONE;ai3-01229;FEMA 2731;Methyl Is;shellmibk;Shell mibk
CBNumber:
CB8691781
분자식:
C6H12O
포뮬러 무게:
100.16
MOL 파일:
108-10-1.mol

메틸이소부틸케톤 속성

녹는점
-84 °C
끓는 점
117-118 °C
밀도
0.801 g/mL at 25 °C(lit.)
증기 밀도
3.5 (vs air)
증기압
15 mm Hg ( 20 °C)
굴절률
n20/D 1.395(lit.)
FEMA
2731 | 4-METHYL-2-PENTANONE
인화점
56 °F
저장 조건
2-8°C
용해도
water: soluble20g/L
물리적 상태
Liquid
색상
APHA: ≤15
냄새
Pleasant; mild, characteristic; sharp; non-residual; ketonic.
폭발한계
1.2-8%, 93°F
수용성
17 g/L (20 ºC)
최대 파장(λmax)
λ: 335 nm Amax: 1.00
λ: 340 nm Amax: 0.50
λ: 360 nm Amax: 0.15
λ: 380 nm Amax: 0.02
λ: 400 nm Amax: 0.01
JECFA Number
301
Merck
14,5207
BRN
605399
Henry's Law Constant
2.56 at 25 °C (batch stripping method-GC, Kim et al., 2000)
노출 한도
TLV-TWA 205 mg/m3 (50 ppm); STEL 300 mg/m3 (75 ppm) (ACGIH); IDLH 3000 ppm (NIOSH).
CAS 데이터베이스
108-10-1(CAS DataBase Reference)
NIST
Methyl isobutyl ketone(108-10-1)
EPA
2-Pentanone, 4-methyl-(108-10-1)
안전
  • 위험 및 안전 성명
  • 위험 및 사전주의 사항 (GHS)
위험품 표기 F,Xn,T
위험 카페고리 넘버 11-20-36/37-66-39/23/24/25-23/24/25
안전지침서 9-16-29-45-36/37-7
유엔번호(UN No.) UN 1245 3/PG 2
WGK 독일 1
RTECS 번호 SA9275000
자연 발화 온도 840 °F
TSCA Yes
HS 번호 2914 13 00
위험 등급 3
포장분류 II
유해 물질 데이터 108-10-1(Hazardous Substances Data)
독성 LD50 orally in rats: 2.08 g/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
H332 흡입하면 유해함 급성 독성 물질 흡입 구분 4 경고 P261, P271, P304+P340, P312
H335 호흡 자극성을 일으킬 수 있음 특정 표적장기 독성 - 1회 노출;호흡기계 자극 구분 3 경고
H370 장기(또는, 영향을 받은 알려진 모든 장기를 명시)에 손상을 일으킴(노출되어도 특정 표적장기 독성을 일으키지 않는다는 결정적인 노출경로가 있다면 노출경로를 기재) 특정 표적장기 독성 - 1회 노출 구분 1 위험 P260, P264, P270, P307+P311, P321,P405, P501
예방조치문구:
P210 열·스파크·화염·고열로부터 멀리하시오 - 금연 하시오.
P260 분진·흄·가스·미스트·증기·...·스프레이를 흡입하지 마시오.
P261 분진·흄·가스·미스트·증기·...·스프레이의 흡입을 피하시오.
P280 보호장갑/보호의/보안경/안면보호구를 착용하시오.
P311 의료기관(의사)의 진찰을 받으시오.
P301+P310 삼켰다면 즉시 의료기관(의사)의 진찰을 받으시오.
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.
P370+P378 화재 시 불을 끄기 위해 (Section 5. 폭발, 화재시 대처방법의 적절한 소화제)을(를) 사용하시오.
P405 밀봉하여 저장하시오.
P403+P235 환기가 잘 되는 곳에 보관하고 저온으로 유지하시오.

메틸이소부틸케톤 C화학적 특성, 용도, 생산

용도

니트로 셀룰로오스, 잇몸, 옻칠 및 사용 우라늄 회수 용제로 사용됩니다. MIBK는 또한 제약 및 전기 도금 산업에 사용됩니다. 이러한 어플리케이션 외에도 새로운 반도체 산업이 출원되었습니다.

포장, 보관 및 운송

드럼 및 용기는 발화원 및 열원이없는 통풍이 잘되는 곳에 보관해야합니다. 보관 온도는 40 ° C를 넘지 않아야합니다.

개요

4-Methyl-2-pentanone has a pleasant odor. May be prepared by hydrogenation of mesityl oxide over Ni at 160 - 190°C; also by oxidation of methyl isobutyl carbinol.

화학적 성질

4-Methyl-2-pentanone has a fruity, ethereal, spicy (on dilution) odor.

화학적 성질

MIBK is a colorless liquid with a pleasant, sweet, fruity odor.

화학적 성질

clear liquid

물리적 성질

Clear, colorless, watery liquid with a mild, pleasant odor. Odor threshold concentration is 47 ppbv (Leonardos et al., 1969). Experimentally determined detection and recognition odor threshold concentrations were 400 μg/m3 (100 ppbv) and 1.1 mg/m3 (270 ppbv), respectively (Hellman and Small, 1974).

출처

Reported found in orange and lemon juice, grape; vinegar, baked potato, papaya, ginger, wheat bread, cheeses, milk, cooked egg, roast chicken, cooked beef, lamb fat, pork liver, hop oil, beer, cognac, coffee, tea, plumcot, plum brandy, mushroom, trassi, sesame seed, buckwheat, wort, elder flower, Bourbon vanilla, clary and red sage, crab, clam and Chinese quince.

용도

MIBK is used as a solvent for gums, resins,nitrocellulose and cellulose ethers, and various fats, oils, and waxes.

용도

Solvent for gums, resins, nitrocellulose, etc.

제조 방법

By hydrogenation of mesityl oxide over Ni at 160 to 190°C; also by oxidation of methyl isobutyl carbinol.

Aroma threshold values

Detection: 240 to 640 ppb

Taste threshold values

Taste characteristics at 25 ppm: sweet, ethereal, banana and fruity with dairy nuances

일반 설명

A clear colorless liquid with a pleasant odor. Flash point 73°F. Less dense than water. Vapors heavier than air.

공기와 물의 반응

Highly flammable. 4-Methyl-2-pentanone is sensitive to air (may form explosive peroxides). Slightly soluble in water.

반응 프로필

4-Methyl-2-pentanone is incompatible with caustic soda and other strong alkalis, hydrochloric acid, sulfuric acid and other strong inorganic acids, amines and oxidizing agents such as hydrogen peroxide, nitric acid, perchloric acid and chromium trioxide. 4-Methyl-2-pentanone reacts violently with potassium tert-butoxide. 4-Methyl-2-pentanone reacts vigorously with reducing materials. .

위험도

Flammable, dangerous fire risk, explosivelimits in air 1.4–7.5%. Avoid ingestion and inhala-tion. Upper respiratory tract irritant, dizziness, andheadache. Possible carcinogen.

건강위험

Vapor causes irritation of eyes and nose; high concentrations cause anesthesia and depression. Liquid dries out skin and may cause dermatitis; irritates eyes but does not injure them.

건강위험

MIBK exhibits low to moderate toxicity.It is more toxic than acetone. Exposureto 200 ppm can cause irritation of theeyes, mucous membranes, and skin. Prolonged skin contact can leach out fat fromthe skin. Exposure to high concentrationscan cause nausea, headache, and narcosis. Animal studies indicate that this compound could probably cause kidney damage,with symptoms of a heavier kidney, higherkidney-to-body weight ratio, and tubularnecrosis. An increase in liver weight wasnoted, too, associated with its exposure inanimal subjects. In male rats the effect wasobserved at 2000 ppm on 2 weeks’ exposure(6 hours/day) (Phillips et al. 1987). Otherthan for the male rat kidney effect, the levelsup to 1000 ppm for 14 weeks had no significant toxicological effect. In another study,exposure to 3000 ppm in rats and mice wasfound to cause increased liver and kidneyweights, decrease in food consumption, incidence of dead fetuses, and reduced fetal bodyweight (Tyl et al. 1987).
Ingestion of MIBK can result in narcosis and coma. A genetic toxicology studyof MIBK showed a negative response inthe bacterial mutation assays and the yeastmitotic gene conversion assay (Brooks et al.1988).
LD50 value, oral (rat): 2080 mg/kg
LD50 value, intraperitoneal (rat): 400 mg/kg.

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.

잠재적 노출

MIBK is used as a solvent; a denaturant; and as an extractant; in the manufacture of methyl amyl alcohol; as a solvent in paints, varnishes, and lacquers; as an alcohol denaturant; as a solvent in uranium extraction from fission products.

환경귀착

Biological. Bridié et al. (1979) reported BOD and COD values of 2.06 and 2.16 g/g using filtered effluent from a biological sanitary waste treatment plant. These values were determined using a standard dilution method at 20 °C and stirred for a period of 5 d. Heukelekian and Rand (1955) reported a 5-d BOD value of 1.51 g/g which is 55.5% of the ThOD value of 2.72 g/g.
Photolytic. When synthetic air containing gaseous nitrous acid and 4-methyl-2-pentanone was exposed to artificial sunlight (λ = 300–450 nm), photooxidation products identified were acetone, peroxyacetal nitrate, and methyl nitrate (Cox et al., 1980). In a subsequent experiment, the OHinitiated photooxidation of 4-methyl-2-pentanone in a smog chamber produced acetone (90% yield) and peroxyacetal nitrate (Cox et al., 1981). Irradiation at 3130 ? resulted in the formation of acetone, propyldiene, and free radicals (Calvert and Pitts, 1966).
Second-order photooxidation rate constants for the reaction of 4-methyl-2-butanone and OH radicals in the atmosphere are 1.4 x 10-10, 1.42 x 10-10, and 1.32 x 10-10 cm3/molecule?sec at 295, 299, and 300 K, respectively (Atkinson, 1985). The atmospheric lifetime was estimated to be 1–5 d (Kelly et al., 1994).
Photolytic. Cox et al. (1980) reported a rate constant of 1.24 x 10-11 cm3/molecule?sec for the reaction of gaseous 4-methyl-2-pentanone with OH radicals based on a value of 8 x 10-12 cm3/molecule?sec for the reaction of ethylene with OH radicals.
Chemical/Physical. 4-Methyl-2-pentanone will not hydrolyze in water because it does not contain a hydrolyzable functional group (Kollig, 1993).

운송 방법

UN1245 Methyl isobutyl ketone, Hazard Class: 3; Labels: 3-Flammable liquid.

Purification Methods

Reflux the ketone with a little KMnO4, wash it with aqueous NaHCO3, dry with CaSO4 and distil it. Acidic impurities are removed by passage through a small column of activated alumina. [Beilstein 1 IV 3305.]

비 호환성

Able to form unstable and explosive peroxides on contact with air. Reacts violently with strong oxidizers, potassium tert-butoxide; strong acids; aliphatic amines; reducing agents

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.

메틸이소부틸케톤 준비 용품 및 원자재

원자재

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