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이소부탄올

이소부탄올
이소부탄올 구조식 이미지
카스 번호:
78-83-1
한글명:
이소부탄올
동의어(한글):
1-프로판올,2-메틸-;1-히드록시메틸프로판;2-메틸-1-프로판올;2-메틸프로판-1-올;2-메틸프로필알콜;IBA79,부틸알콜;발효부틸알;부탄;부탄올-이소;이소-부틸알콜;이소프로필카비;아이소뷰틸알코올;이소부탄올;이소부틸알코올;이소뷰탄올;이소부틸알콜;이소부탄올(IBOH);이소부틸알코올
상품명:
2-Methyl-1-propanol
동의어(영문):
IBA;FEMA 2179;i-Butanol;sobutanol;ISOBUTANOL;iso-C4H9OH;BUTANOL-ISO;femanumber2179;ISOBUTANOL(SG);Isobutanol4x1L
CBNumber:
CB3158955
분자식:
C4H10O
포뮬러 무게:
74.12
MOL 파일:
78-83-1.mol

이소부탄올 속성

녹는점
−108 °C(lit.)
끓는 점
108 °C(lit.)
밀도
0.803 g/mL at 25 °C(lit.)
증기 밀도
2.55 (vs air)
증기압
8 mm Hg ( 20 °C)
굴절률
n20/D 1.396(lit.)
FEMA
2179 | ISOBUTYL ALCOHOL
인화점
82 °F
저장 조건
Flammables area
용해도
water: miscible70g/L at 20°C
물리적 상태
Solid
산도 계수 (pKa)
>14 (Schwarzenbach et al., 1993)
색상
APHA: ≤10
상대극성
0.552
수소이온지수(pH)
7 (80g/l, H2O, 20℃)
냄새
Slightly suffocating; nonresidual alcoholi
폭발한계
1.5-12%(V)
수용성
95 g/L (20 ºC)
최대 파장(λmax)
λ: 260 nm Amax: 0.10
λ: 280 nm Amax: 0.06
JECFA Number
251
Merck
14,5131
BRN
1730878
Henry's Law Constant
20.0 at 30.00 °C, 72.2 at 50.00 °C, 133 at 60.00 °C, 216 at 70.00 °C, 330 at 80.00 °C (headspace- GC, Hovorka et al., 2002)
노출 한도
TWA 300 mg/m3 (100 ppm) NIOSH, 150 mg/m3 (50 ppm) (ACGIH); IDLH 8000 ppm.
안정성
Stable. Flammable. Incompatible with strong oxidizing agents, aluminium.
InChIKey
ZXEKIIBDNHEJCQ-UHFFFAOYSA-N
CAS 데이터베이스
78-83-1(CAS DataBase Reference)
NIST
1-Propanol, 2-methyl-(78-83-1)
EPA
1-Propanol, 2-methyl-(78-83-1)
안전
  • 위험 및 안전 성명
  • 위험 및 사전주의 사항 (GHS)
위험품 표기 Xi
위험 카페고리 넘버 10-37/38-41-67
안전지침서 13-26-37/39-46-7/9
유엔번호(UN No.) UN 1212 3/PG 3
WGK 독일 1
RTECS 번호 NP9625000
자연 발화 온도 801 °F
TSCA Yes
위험 등급 3
포장분류 III
HS 번호 29051990
유해 물질 데이터 78-83-1(Hazardous Substances Data)
독성 LD50 orally in rats: 2.46 g/kg (Smyth)
그림문자(GHS):
신호 어: Danger
유해·위험 문구:
암호 유해·위험 문구 위험 등급 범주 신호 어 그림 문자 P- 코드
H226 인화성 액체 및 증기 인화성 액체 구분 3 경고
H315 피부에 자극을 일으킴 피부부식성 또는 자극성물질 구분 2 경고 P264, P280, P302+P352, P321,P332+P313, P362
H318 눈에 심한 손상을 일으킴 심한 눈 손상 또는 자극성 물질 구분 1 위험 P280, P305+P351+P338, P310
H335 호흡 자극성을 일으킬 수 있음 특정 표적장기 독성 - 1회 노출;호흡기계 자극 구분 3 경고
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.
P280 보호장갑/보호의/보안경/안면보호구를 착용하시오.
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.

이소부탄올 C화학적 특성, 용도, 생산

용도

(1)에 대 한 분석 시 약, 크로마토그래피 시 약, 용 제 및 추출 에이전트.
유기 합성, 그리고 또한 우수한 용 매 역할에 대 한 (2)으로 원시 자료.
(3) Isobutanol은 유기 합성의 원료. 그것은 주로 isobutyronitrile, 디 아 지 논에 대 한 중간의 합성에 사용 된다.
(4)으로 유기 합성의 원료, isobutanol 석유 첨가제, 산화 방지 제, 2의 제조에 사용 된다 6-butylated로, isobutyl 아세테이트 (페인트 용), 가소제, 합성 고무, 인공 사향, 과일 기름 및 합성 마약입니다. 그것은 수 또한 스트론튬, 바 륨, 리튬 염 및 기타 화학 시 약을 정화 하는 데 사용 되며 우수한 용 매로 사용.
(5) 추출 용 매입니다. GB 2760-96에에서 나열 된 음식 맛입니다.

개요

Isobutyl alcohol has a disagreeable odor. May be prepared from isobutylene; by reduction of isobutyraldehyde with sodium amalgam or in the presence of a catalyst; by fermentation of isobutyraldehyde; isolated during fermentation of carbohydrates.

화학적 성질

Isobutyl alcohol has a penetrating, wine-like, disagreeable odor

물리적 성질

Clear, colorless, oily liquid with a sweet, musty odor. Burning taste. The average least detectable odor threshold concentration in water at 60 °C was 0.36 mg/L (Alexander et al., 1982). Experimentally determined detection and recognition odor threshold concentrations were 2.0 mg/m3 (660 ppbv) and 5.4 mg/m3 (1.8 ppmv), respectively (Hellman and Small, 1974). An odor threshold concentration of 11 ppbv was reported by Nagata and Takeuchi (1990).

출처

Reported found in the essential oils of Java citronella, tea, Eucalyptus amygdalina. Also reported in apple and currant aromas; in apricots, banana, sweet cherry, orange, grapefruit and tangerine juice, berries, guava, grapes, melon, papaya, pear, pineapple, leek, peas, rutabaga, tomato, ginger, spearmint oil, vinegar, breads, cheeses, milk, fish oil, meats, hop oil, beer, cognac, rum, whiskies, sherry, cider, grape wines, cocoa, tea, coffee, nuts, oats, soybean, avocado, olive, passion fruit, plum, beans, mango, starfruit, bantu beer, plum brandy, tamarind, fig, cardamom, gin, quince, radish, prickly pear, litchi, sukiyaki, lovage leaf, buckwheat, sweet corn, laurel, malt, wort, elderberry juice, dried bonito, krill, kiwifruit, loquat, fruit brandies and wines, endive, shrimp, truffle, red currants, Roman chamomile oil and other sources.

용도

Isobutanol is widely used in the productionof isobutyl acetate for lacquers, isobutylphthalate for plasticizers; as a solvent forplastics, textiles, oils, and perfumes; and asa paint remover.

용도

Isobutyl Alcohol is a reagent used in organic reactions. It is used in the synthesis of new fluorinating reagents. It is also used in the lipase-catalyzed production of biodiesel as an energy source.

용도

manufacture of esters for fruit flavoring essences; solvent in paint, varnish removers.

정의

ChEBI: An alkyl alcohol that is propan-1-ol substituted by a methyl group at position 2.

제조 방법

From isobutylene; by reduction of isobutyraldehyde with sodium amalgam or in the presence of a catalyst; by fermentation of isobutyraldehyde; isolated during fermentation of carbohydrates

Aroma threshold values

Detection: 360 ppb to 3.3 ppm

일반 설명

A clear colorless liquid with a sweet odor. Flash point 85 - 100°F. Less dense than water. Vapors heavier than air.

공기와 물의 반응

Highly flammable. Soluble in water.

반응 프로필

2-Methyl-1-propanol is an alcohol. Flammable and/or toxic gases are generated by the combination of alcohols with alkali metals, nitrides, and strong reducing agents. They react with oxoacids and carboxylic acids to form esters plus water. Oxidizing agents convert them to aldehydes or ketones. Alcohols exhibit both weak acid and weak base behavior. They may initiate the polymerization of isocyanates and epoxides. 2-Methyl-1-propanol is incompatible with strong oxidizers.

위험도

Flammable, moderate fire risk. Strong irritant.

건강위험

Inhalation causes eye and throat irritation andheadache. Ingestion may cause depression ofthe central nervous system. It is an irritantto the skin, causing cracking. Target organsare the eyes, skin, and respiratory system.
LD50 value, oral (rabbits): 3750 mg/kg.

화재위험

HIGHLY FLAMMABLE: Will be easily 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.

화학 반응

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

잠재적 노출

Butyl alcohols are used as solvents for paints, lacquers, varnishes, natural and synthetic resins, gums, vegetable oils, dyes, camphor, and alkaloids. They are also used as an intermediate in the manufacture of pharmaceuticals and chemicals; in the manufacture of artificial leather, safety glass; rubber and plastic cements, shellac, raincoats, photographic films, perfumes; and in plastic fabrication.

Source

A product of whiskey fermentation (quoted, Verschueren, 1983). Isobutyl alcohol also occurs in tea leaves and java cintronella plants (Duke, 1992).

환경귀착

Biological. Bridié et al. (1979) reported BOD and COD values of 0.41 and 2.46 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. When a sewage seed was used in a separate screening test, a BOD value of 1.63 g/g was obtained. Heukelekian and Rand (1955) reported a 5-d BOD value of 1.66 g/g which is 64.0% of the ThOD value of 2.59 g/g. Using the BOD technique to measure biodegradation, the mean 5-d BOD value (mM BOD/mM isobutyl alcohol) and ThOD were 3.92 and 65.3%, respectively (Vaishnav et al., 1987).
Chemical/Physical. Isobutyl alcohol will not hydrolyze because it does not have a hydrolyzable functional group (Kollig, 1993).
At an influent concentration of 1,000 mg/L, treatment with GAC resulted in an effluent concentration of 581 mg/L. The adsorbability of the carbon used was 84 mg/g carbon (Guisti et al., 1974).

운송 방법

UN1120 Butanols, Hazard Class: 3; Labels: 3— Flammable liquid. UN1212 Isobutanol or Isobutyl alcohol, Hazard Class: 3; Labels: 3—Flammable liquid

Purification Methods

Isobutanol is dried by refluxing with CaO and BaO for several hours, followed by treatment with calcium or aluminium amalgam, then fractional distilling it from sulfanilic or tartaric acids. More exhaustive purifications involve formation of phthalate or borate esters. Heating it with phthalic anhydride gives the acid phthalate which, after crystallisation to constant melting point (m 65o) from pet ether, is hydrolysed with aqueous 15% KOH. The alcohol is distilled off as the water azeotrope and dried (K2CO3, then anhydrous CuSO4), and finally magnesium turnings, followed by fractional distillation. [Hückel & Ackermann J Prakt Chem 136 15 1933.] The borate ester is formed by heating the dried alcohol for 6hours in an autoclave at 160-175o with a quarter of its weight of boric acid. After fractional distillation under vacuum, the ester is hydrolysed by heating for a short time with aqueous alkali and the alcohol is dried with CaO and distilled. [Michael et al. J Am Chem Soc 38 653 1916.] Alternatively dry the alcohol with K2CO3, CaSO4 or CaCl2, filter and fractionally distil it. For further drying, the redistilled alcohol can be refluxed with the appropriate alkyl phthalate or succinate as described under ethanol. [Beilstein 1 IV 1588.]

비 호환성

Butyl alcohols may form explosive mixture with air. In all cases they 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. Attacks some plastics, rubber and coatings. n-Butanol is incompatible with strong acids; halogens, caustics, alkali metals; aliphatic amines; isocyanates. sec-Butanol forms an explosive peroxide in air. Ignites with chromium trioxide. Incompatible with strong oxidizers; strong acids; aliphatic amines; isocyanates, organic peroxides. tert-Butanol is incompatible with strong acids (including mineral acid), including mineral acids; strong oxidizers or caustics, aliphatic amines; isocyanates, alkali metals (i.e., lithium, sodium, potassium, rubidium, cesium, francium). isoButanol is incompatible with strong acids; strong oxidizers; caustics, aliphatic amines; isocyanates, alkali metals and alkali earth. May react with aluminum at high temperatur

폐기물 처리

Incineration, or bury absorbed waste in an approved land fill.

이소부탄올 준비 용품 및 원자재

원자재

준비 용품


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