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메틸사이클로헥산

메틸사이클로헥산
메틸사이클로헥산 구조식 이미지
카스 번호:
108-87-2
한글명:
메틸사이클로헥산
동의어(한글):
헥사히드로톨루엔;메틸사이클로헥산;메틸시클로헥산;시클로헥실메탄;톨루엔헥사수소화물
상품명:
Methylcyclohexane
동의어(영문):
sextoneb;Sextone B;heptanaphthene;Thiolite HAT 1;Methylcyclohex;Cyclohxylmethane;HEXAHYDROTOLUENE;hexahydrodoluene;hexahydro-toluen;methyl-cyclohexan
CBNumber:
CB7852767
분자식:
C7H14
포뮬러 무게:
98.19
MOL 파일:
108-87-2.mol

메틸사이클로헥산 속성

녹는점
-126 °C (lit.)
끓는 점
101 °C (lit.)
밀도
0.77 g/mL at 25 °C (lit.)
증기 밀도
3.4 (vs air)
증기압
37 mm Hg ( 20 °C)
굴절률
n20/D 1.422(lit.)
인화점
25 °F
저장 조건
Store below +30°C.
용해도
0.014g/l
물리적 상태
Liquid
색상
Colorless
폭발한계
1.1-6.7%(V)
Odor Threshold
0.15ppm
수용성
0.1 g/L (20 ºC)
최대 파장(λmax)
λ: 207 nm Amax: 1.00
λ: 221 nm Amax: 0.40
λ: 232 nm Amax: 0.15
λ: 260 nm Amax: 0.05
λ: 300-400 nm Amax: 0.01
Merck
14,6047
BRN
505972
Henry's Law Constant
0.0678 at 25.0 °C (Ramachandran et al., 1996)
노출 한도
NIOSH REL: TWA 400 ppm (1,600 mg/m3), IDLH 1,200 ppm; OSHA PEL: TWA 500 ppm (2,000 mg/m3); ACGIH TLV: TWA 400 ppm (adopted).
안정성
Stable. Very flammable. Incompatible with strong oxidizing agents.
CAS 데이터베이스
108-87-2(CAS DataBase Reference)
NIST
Cyclohexane, methyl-(108-87-2)
EPA
Methylcyclohexane (108-87-2)
안전
  • 위험 및 안전 성명
  • 위험 및 사전주의 사항 (GHS)
위험품 표기 F,Xn,N
위험 카페고리 넘버 11-38-51/53-65-67
안전지침서 9-16-33-61-62
유엔번호(UN No.) UN 2296 3/PG 2
WGK 독일 2
RTECS 번호 GV6125000
F 고인화성물질 3-10
자연 발화 온도 545 °F
TSCA Yes
HS 번호 2902 19 00
위험 등급 3
포장분류 II
유해 물질 데이터 108-87-2(Hazardous Substances Data)
독성 Acute oral LD50 for mice 2,250 mg/kg (quoted, RTECS, 1985).
기존화학 물질 KE-23691
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
H302 삼키면 유해함 급성 독성 물질 - 경구 구분 4 경고 P264, P270, P301+P312, P330, 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
H320 눈에 자극을 일으킴 심한 눈 손상 또는 자극성 물질 구분 2B 경고 P264, P305+P351+P338,P337+P313
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
H410 장기적 영향에 의해 수생생물에 매우 유독함 수생 환경유해성 물질 - 만성 구분 1 경고 P273, P391, P501
H411 장기적 영향에 의해 수생생물에 유독함 수생 환경유해성 물질 - 만성 구분 2
H412 장기적 영향에 의해 수생생물에 유해함 수생 환경유해성 물질 - 만성 구분 3 P273, P501
예방조치문구:
P210 열·스파크·화염·고열로부터 멀리하시오 - 금연 하시오.
P233 용기를 단단히 밀폐하시오. 용기는 환기가 잘 되는 곳에 단단히 밀폐하여 보관하시오.
P240 용기와 수용설비를 접지 및 접합시키시오.
P243 정전기 방지 조치를 취하시오.
P261 분진·흄·가스·미스트·증기·...·스프레이의 흡입을 피하시오.
P264 취급 후에는 손을 철저히 씻으시오.
P264 취급 후에는 손을 철저히 씻으시오.
P270 이 제품을 사용할 때에는 먹거나, 마시거나 흡연하지 마시오.
P271 옥외 또는 환기가 잘 되는 곳에서만 취급하시오.
P273 환경으로 배출하지 마시오.
P280 보호장갑/보호의/보안경/안면보호구를 착용하시오.
P331 토하게 하지 마시오.
P391 누출물을 모으시오.
P301+P310 삼켰다면 즉시 의료기관(의사)의 진찰을 받으시오.
P301+P330+P331 삼켰다면 입을 씻어내시오. 토하게 하려 하지 마시오.
P370+P378 화재 시 불을 끄기 위해 (Section 5. 폭발, 화재시 대처방법의 적절한 소화제)을(를) 사용하시오.
P403 환기가 잘 되는 곳에 보관하시오.
P405 밀봉하여 저장하시오.
P403+P233 용기는 환기가 잘 되는 곳에 단단히 밀폐하여 저장하시오.
P403+P235 환기가 잘 되는 곳에 보관하고 저온으로 유지하시오.
P501 ...에 내용물 / 용기를 폐기 하시오.
NFPA 704
3
1 0

메틸사이클로헥산 MSDS


Hexahydrotoluene

메틸사이클로헥산 C화학적 특성, 용도, 생산

화학적 성질

Methylcyclohexane, an alkene, is a colorless liquid with a faint benzene-like odor. The odor threshold is 630 ppm (this is above the OEL).

물리적 성질

Clear colorless, very flammable liquid with a faint odor similar to benzene or cyclohexane. An odor threshold concentration of 150 ppbv was reported by Nagata and Takeuchi (1990).

용도

Solvent; starting material in the synthesis of toluene.

용도

Solvent; organic synthesis

용도

Methylcyclohexane is used as a solvent and reagent in organic synthesis and polymer chemistry. It is a component of jet fuel and also used as correction fluid in certain consumer products. It acts as a starting material for toluene synthesis

생산 방법

Methylcyclohexane is separated by distillation from crude petroleum oils, and also produced by hydrogenation of toluene, reaction of benzene with methane, or acidic hydrocracking of polycyclic aromatics.

Synthesis Reference(s)

Journal of the American Chemical Society, 77, p. 5099, 1955 DOI: 10.1021/ja01624a044
The Journal of Organic Chemistry, 41, p. 1393, 1976 DOI: 10.1021/jo00870a022

일반 설명

A clear colorless liquid with a petroleum-like odor. Flash point 25°F. Less dense than water and insoluble in water. Vapors heavier than air.

공기와 물의 반응

Highly flammable. Insoluble in water.

반응 프로필

Saturated aliphatic hydrocarbons, such as Methylcyclohexane, may be incompatible with strong oxidizing agents like nitric acid. Charring of the hydrocarbon may occur followed by ignition of unreacted hydrocarbon and other nearby combustibles. In other settings, aliphatic saturated hydrocarbons are mostly unreactive. They are not affected by aqueous solutions of acids, alkalis, most oxidizing agents, and most reducing agents.

위험도

Flammable, dangerous fire risk. Lowerexplosive limit 1.2% in air. Upper respiratory tractirritant, central nervous system impairment, liverand kidney damage.

건강위험

Harmful if inhaled or swallowed. Vapor or mist is irritating to the eyes, mucous membrane and upper respiratory tract and skin. Narcotic effects and dermititis.

화재위험

Special Hazards of Combustion Products: Vapor may travel considerable distance to a source of ignition and flashback containing explosion may occur during fire conditions. Forms explosive mixtures in air.

Safety Profile

Moderately toxic by ingestion. Mildly toxic by inhalation and skin contact. This material does not cause irritation to the eyes and nose, and, even at the level of 500 ppm, exhbits only a very faint odor. Therefore, it cannot be said to have any warning properties. It is believed to be about three times as toxic as hexane, and has caused death by tetanic spasm in animals. In sublethal concentrations, it causes narcosis and anesthesia. Dangerous fire hazard and moderate explosion hazard when exposed to heat, flame, or oxidzers. To fight fire, use foam, CO2, dry chemical. When heated to decomposition it emits acrid smoke and fumes.

잠재적 노출

Methylcyclohexane is used as a solvent for cellulose derivatives particularly with other solvents; and as an organic intermediate in organic synthesis. A component of jet fuel.

Source

Schauer et al. (1999) reported methylcyclohexane in a diesel-powered medium-duty truck exhaust at an emission rate of 620 μg/km.
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 methylcyclohexane was 8.6 mg/kg of pine burned. Emission rates of methylcyclohexane were not measured during the combustion of oak and eucalyptus.
California Phase II reformulated gasoline contained methylcyclohexane at a concentration of 7.87 mg/kg. Gas-phase tailpipe emission rates from gasoline-powered automobiles with and without catalytic converters were 1.86 and 274 mg/km, respectively (Schauer et al., 2002).

환경귀착

Biological. May be oxidized by microbes to 4-methylcyclohexanol, which may oxidize to give 4-methylcycloheptanone (Dugan, 1972).
Photolytic. Based on a photooxidation rate constant 1.04 x 10-11 cm3/molecule?sec for the reaction of cyclohexane and OH radicals in the atmosphere at 298 K, the estimated lifetime of methylcyclohexane is 13 h (Altshuller, 1991).
Chemical/Physical. Complete combustion in air produces carbon dioxide and water vapor. Methycyclohexane will not hydrolyze in water because it does not contain a hydrolyzable functional group.
Complete combustion in air yields carbon dioxide and water. Incomplete combustion also yields carbon monoxide.

운송 방법

UN2296 Methylcyclohexane, Hazard Class: 3; Labels: 3-Flammable liquid.

Purification Methods

Passage through a column of activated silica gel gives material transparent down to 220nm. It can also be purified by passage through a column of activated basic alumina, or by azeotropic distillation with MeOH, followed by washing out the MeOH with H2O, drying and distilling. Methylcyclohexane can be dried with CaSO4, CaH2 or sodium. It has also been purified by shaking with a mixture of conc H2SO4 and HNO3 in the cold, washing with H2O, drying with CaSO4 and fractionally distilling it from potassium. Percolation through a Celite column impregnated with 2,4-dinitrophenylhydrazine (DNPH), phosphoric acid and H2O (prepared by grinding 0.5g DNPH with 6mL 85% H3PO4, then mixing with 4mL of distilled H2O and 10g of Celite) removes carbonyl-containing impurities. [Cowan et al. J Chem Soc 1865 1939, Beilstein 5 III 65, 5 IV 94.]

비 호환성

Vapor 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, rubber 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.

메틸사이클로헥산 준비 용품 및 원자재

원자재

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