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펜탄

펜탄
펜탄 구조식 이미지
카스 번호:
109-66-0
한글명:
펜탄
동의어(한글):
펜탄;N-펜탄;노르말펜탄;아밀수화물;펜테인(펜탄)
상품명:
Pentane
동의어(영문):
R601;PETANE;Pentan;n-C5H12;PENTANE;Pentani;N-PENTAN;Pentanen;N-PENTANE;ALKANE C5
CBNumber:
CB6288989
분자식:
C5H12
포뮬러 무게:
72.15
MOL 파일:
109-66-0.mol

펜탄 속성

녹는점
-130 °C
끓는 점
36 °C
밀도
0.626 g/mL at 25 °C(lit.)
증기 밀도
2.48 (vs air)
증기압
26.98 psi ( 55 °C)
굴절률
n20/D 1.358
인화점
−57 °F
저장 조건
2-8°C
용해도
ethanol: soluble(lit.)
물리적 상태
Liquid
산도 계수 (pKa)
>14 (Schwarzenbach et al., 1993)
색상
Colorless
상대극성
0.009
냄새
Like a gasoline.
Odor Threshold
1.4ppm
폭발한계
1.4-8%(V)
수용성
insoluble
최대 파장(λmax)
λ: 200 nm Amax: ≤0.70
λ: 210 nm Amax: ≤0.20
λ: 220 nm Amax: ≤0.07
λ: 230 nm Amax: ≤0.02
λ: 250 nm Amax: ≤0.004
Merck
14,7116
BRN
969132
Henry's Law Constant
1.20 at 25 °C (J?nsson et al., 1982)
노출 한도
TLV-TWA 600 ppm (~1800 mg/m3) (ACGIH), 1000 ppm (~3000 mg/m3) (OSHA), 500 ppm (~1500 mg/m3) (MSHA); STEL 750 ppm (~2250 mg/m3) (ACGIH).
InChIKey
OFBQJSOFQDEBGM-UHFFFAOYSA-N
CAS 데이터베이스
109-66-0(CAS DataBase Reference)
NIST
Pentane(109-66-0)
EPA
Pentane (109-66-0)
안전
  • 위험 및 안전 성명
  • 위험 및 사전주의 사항 (GHS)
위험품 표기 F+,Xn,N,F
위험 카페고리 넘버 12-51/53-65-66-67
안전지침서 9-16-29-33-61-62
유엔번호(UN No.) UN 1265 3/PG 2
WGK 독일 2
RTECS 번호 RZ9450000
F 고인화성물질 3-10
자연 발화 온도 500 °F
TSCA Yes
위험 등급 3
포장분류 II
HS 번호 29011090
유해 물질 데이터 109-66-0(Hazardous Substances Data)
독성 LC (in air) in mice: 377 mg/l (Fühner)
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
H260 물과 접촉시 자연 발화성 인화성 가스를 발생시킴 물반응성 물질 및 혼합물 구분 1 위험 P223, P231+P232, P280, P335+ P334,P370+P378, P402+P404, P501
H304 삼켜서 기도로 유입되면 치명적일 수 있음 흡인 유해성물질 구분 1 위험
H315 피부에 자극을 일으킴 피부부식성 또는 자극성물질 구분 2 경고 P264, P280, P302+P352, P321,P332+P313, P362
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
H401 수생생물에 유독함 수생 환경유해성 물질 - 급성 구분 2 P273, P501
H411 장기적 영향에 의해 수생생물에 유독함 수생 환경유해성 물질 - 만성 구분 2
예방조치문구:
P210 열·스파크·화염·고열로부터 멀리하시오 - 금연 하시오.
P223 물과 접촉하지 마시오.
P261 분진·흄·가스·미스트·증기·...·스프레이의 흡입을 피하시오.
P273 환경으로 배출하지 마시오.
P331 토하게 하지 마시오.
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.

펜탄 MSDS


Pentane

펜탄 C화학적 특성, 용도, 생산

개요

펜테인은 펜탄이라고도 불리는 탄소와 수소의 결합으로 이루어진 알케인 탄화수소로,상온에서 상쾌한 냄새가 나는 무색의 투명한 액체 상태를 유지하며.

용도

펜탄은 주로 EPS, PIR 등과 같은 폴리스티렌 폼의 제조에서 주요 발포제로 사용됩니다.이 제품은 다른 화학 물질에 비해 비용이 저렴하고 사용시 낮은 끓는점 및 상대적 안전성 때문에 사용됩니다.

용도

일반 펜탄은 또한 용제 및 제약, 석유 화학, 도료 및 코팅과 같은 다양한 산업 분야에서 사용됩니다.펜탄은 또한 실험실에서 용제로 사용됩니다.

안전성

극도의 인화성, 공기와의 폭발성 혼합물을 형성하며, 열원 또는 화염에 노출되면 연소 및 폭발 할 수 있습니다. 가열 된 용기에서 폭발 할 수도 있음. 산화제와 격렬하게 반응 할 것. 그것은 공기보다 무겁고 물에 녹지 않으며, 낮은 수준의 먼 지역으로 퍼지고, 점화원이 될 경우 파업을합니다.

화학적 성질

clear liquid

화학적 성질

n-Pentane is a flammable liquid. It has applications in industry as an aerosol propellant and as an important component of engine fuel. N-propane is a CNS depressant. Studies with dogs have indicated that it induces cardiac sensitization. In high concentrations it causes incoordination and inhibition of the righting refl exes.

화학적 성질

Pentane is a colorless liquid. Gas above 36C. Gasoline-like odor.

물리적 성질

Clear, colorless, volatile liquid with an odor resembling gasoline. An odor threshold concentration of 1.4 ppmv was reported by Nagata and Takeuchi (1990).

용도

n-Pentane occurs in volatile petroleum fractions(gasoline) and as a constituent ofpetroleum ether. It is used as a solvent, in themanufacture of low-temperature thermometers,and as a blowing agent for plastics.

생산 방법

Pentane is produced by fractional distillation of natural gas liquids and crude oil. It is also produced by the catalytic crackdown of naphtha.

정의

A straightchain alkane obtained by distillation of crude oil.

정의

pentane: A straight-chain alkanehydrocarbon, C5H12; r.d. 0.63; m.p.–129.7°C; b.p. 36.1°C. It is obtainedby distillation of petroleum.

일반 설명

A clear colorless liquid with a petroleum-like odor. Flash point 57°F. Boiling point 97°F. Less dense than water and insoluble in water. Hence floats on water. Vapors are heavier than air.

공기와 물의 반응

Highly flammable. Insoluble in water.

반응 프로필

Pentane is incompatible with strong oxidizers. Pentane is also incompatible with strong acids, alkalis, and oxygen. Mixtures with chlorine gas have produced explosions. Pentane will attack some forms of plastics, rubber, and coatings. .

건강위험

Low toxicity. Very high vapor concentrations produce narcosis. Aspiration into lungs can produce chemical pneumonitis and/or pulmonary edema.

건강위험

n-Pentane did not exhibit any marked toxicityin animals. However, inhalation ofits vapors at high concentrations can causenarcosis and irritation of the respiratorypassages. Such effects may be observedwithin the range 5–10% concentration inair. In humans, inhalation of 5000 ppm for10 minutes did not cause respiratory tractirritation or other symptoms (Patty and Yant1929).
There is no report in the literature indicatingany adverse effects from pentaneother than narcosis and irritation. An intravenousLD50 value in mouse is recorded as446 mg/kg (NIOSH 1986).

화재위험

Behavior in Fire: Containers may explode

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 inhalation and intravenous routes. Narcotic in high concentration. The liquid can cause blisters on contact. Flammable liquid. Highly dangerous fire hazard when exposed to heat, flame, or oxidizers. Severe explosion hazard when exposed to heat or flame. Shock can shatter metal containers and release contents. To fight fire, use foam, CO2, dry chemical. When heated to decomposition it emits acrid smoke and irritating fumes

잠재적 노출

Pentane is used in manufacture of ice, low-temperature thermometers; in solvent extraction processes; as a blowing agent in plastics; as a fuel; as a chemical intermediate (for amylchlorides, e.g.).

Source

Schauer et al. (1999) reported pentane in a diesel-powered medium-duty truck exhaust at an emission rate of 1,860 μg/km.
A constituent in gasoline. Harley et al. (2000) analyzed the headspace vapors of three grades of unleaded gasoline where ethanol was added to replace methyl tert-butyl ether. The gasoline vapor concentrations of pentane in the headspace were 14.2 wt % for regular grade, 12.6 wt % for midgrade, and 9.3 wt % for premium grade.
California Phase II reformulated gasoline contained pentane at a concentration of 27.6 g/kg. Gas-phase tailpipe emission rates from gasoline-powered automobiles with and without catalytic converters were 4.29 and 536 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 rate of pentane was 4.7 mg/kg of pine burned. Emission rates of pentane were not measured during the combustion of oak and eucalyptus.

환경귀착

Biological. n-Pentane may biodegrade in two ways. The first is the formation of pentyl hydroperoxide, which decomposes to 1-pentanol followed by oxidation to pentanoic acid. The other pathway involves dehydrogenation to 1-pentene, which may react with water giving 1- pentanol (Dugan, 1972). Microorganisms can oxidize alkanes under aerobic conditions (Singer and Finnerty, 1984). The most common degradative pathway involves the oxidation of the terminal methyl group forming 1-pentanol. The alcohol may undergo a series of dehydrogenation steps forming an aldehyde (valeraldehyde) then a fatty acid (valeric acid). The fatty acid may then be metabolized by β-oxidation to form the mineralization products, carbon dioxide and water (Singer and Finnerty, 1984). Mycobacterium smegnatis was capable of degrading pentane to 2- pentanone (Riser-Roberts, 1992).
Photolytic. When synthetic air containing gaseous nitrous acid and pentane was exposed to artificial sunlight (λ = 300–450 nm) methyl nitrate, pentyl nitrate, peroxyacetal nitrate, and peroxypropionyl nitrate formed as products (Cox et al., 1980).
Chemical/Physical. Complete combustion in air yields carbon dioxide and water. Pentane will not hydrolyze because it does not contain a hydrolyzable functional group.

운송 방법

UN1265 Pentanes Hazard Class: 3; Labels: 3-Flammable liquid.

Purification Methods

Stir the pentane with successive portions of conc H2SO4 until there is no further coloration during 12hours, then with 0.5N KMnO4 in 3M H2SO4 for 12hours, wash with water and aqueous NaHCO3. Dry it with MgSO4 or Na2SO4, then P2O5 and fractionally distil it through a column packed with glass helices. It is also purified by passage through a column of silica gel, followed by distillation and storage with sodium hydride. An alternative purification is by azeotropic distillation with MeOH, which is subsequently washed out from the distillate (using water), followed by drying and re-distilling. For removal of carbonyl-containing impurities, see n-heptane. Also purify it by fractional freezing (ca 40%) on a copper coil through which cold air is passed, then wash with conc H2SO4 and fractionally distil it. [Beilstein 1 IV 303.]

비 호환성

Vapors may form explosive mixture with air. 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, rubbers, and coatings.

폐기물 처리

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.

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