ChemicalBook
Chinese English Japanese Germany Korea

1,2,4-트리메틸벤젠

1,2,4-트리메틸벤젠
1,2,4-트리메틸벤젠 구조식 이미지
카스 번호:
95-63-6
한글명:
1,2,4-트리메틸벤젠
동의어(한글):
1,2,4-트라이메틸벤젠;1,2,4-트리메틸벤젠;수도큐멘
상품명:
1,2,4-Trimethylbenzene
동의어(영문):
PSC;pseudo;ps-Cumene;PSI-CUMENE;PSEUDOCUMOL;PSEUDOCUMENE;1.2.4-Trimethy;PSEUDOCUMENE(SG);TRIMETHYLBENZENE;Pseudocumene (PSC)
CBNumber:
CB0854702
분자식:
C9H12
포뮬러 무게:
120.19
MOL 파일:
95-63-6.mol

1,2,4-트리메틸벤젠 속성

녹는점
-44 °C
끓는 점
168 °C(lit.)
밀도
0.876 g/mL at 20 °C(lit.)
증기 밀도
4.1 (vs air)
증기압
4.5 mm Hg ( 37.7 °C)
굴절률
n20/D 1.504(lit.)
인화점
120 °F
저장 조건
2-8°C
용해도
0.057g/l
물리적 상태
Liquid
산도 계수 (pKa)
>14 (Schwarzenbach et al., 1993)
색상
Clear colorless
폭발한계
0.8-7%(V)
수용성
Soluble in alcohol, benzene and ether. Slightly soluble in water
Merck
14,7915
BRN
1903005
Henry's Law Constant
6.946, 11.202, and 15.702 at 27.0, 35.0, and 45.0 °C, respectively (dynamic headspace, Hansen et al., 1995)
노출 한도
NIOSH REL: TWA 25 ppm (125 mg/m3); ACGIH TLV: TWA for mixed isomers 25 ppm (adopted).
안정성
Stable. Incompatible with strong oxidizing agents. Flammable. May form explosive mixtures with air.
InChIKey
GWHJZXXIDMPWGX-UHFFFAOYSA-N
CAS 데이터베이스
95-63-6(CAS DataBase Reference)
안전
  • 위험 및 안전 성명
  • 위험 및 사전주의 사항 (GHS)
위험품 표기 Xn,N,F,Xi,T
위험 카페고리 넘버 10-20-36/37/38-51/53-39/23/24/25-23/24/25-11-65
안전지침서 26-61-45-36/37-16-7-62
유엔번호(UN No.) UN 3295 3/PG 3
WGK 독일 2
RTECS 번호 DC3325000
자연 발화 온도 959 °F
위험 참고 사항 Irritant/Flammable
TSCA Yes
위험 등급 3
포장분류 III
HS 번호 29029090
독성 LD50 i.p. in male, female mice (mg/kg): 5000, 4100 (Janik-Spiechowicz)
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
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
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
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.
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.
P405 밀봉하여 저장하시오.

1,2,4-트리메틸벤젠 C화학적 특성, 용도, 생산

화학적 성질

colourless liquid

물리적 성질

Colorless liquid with a slight aromatic odor. A detection odor threshold concentration of 12 mg/m3 (2.4 ppmv) was experimentally determined by Dravnieks (1974).

용도

Sterilizing catgut by heating one hour at 160°; solvent in manufacture of dyes, perfumes and resins. Solvent for liquid scintillation counting solutions.

정의

ChEBI: A trimethylbenzene carrying methyl groups at positions 1, 2 and 4.

일반 설명

A liquid. Flash point near 130°F. Less dense than water and insoluble in water. Vapors irritate eyes, throat, and nose. Used in dyes and pharmaceuticals.

공기와 물의 반응

Insoluble in water.

반응 프로필

1,2,4-Trimethylbenzene is incompatible with the following: Oxidizers, nitric acid .

위험도

Moderate fire risk. Central nervous system depressant, irritant to mucous membranes. Asthma and hematologic effects.

건강위험

Harmful if inhaled or swallowed. Vapor or mist is irritating to the eyes, mucous membrane and upper respiratory tract. Prolonged contact can cause dermatitis, nausea, headache, dizziness, and narcotic effect.

Safety Profile

Moderately toxic by intraperitoneal route. Mildly toxic by inhalation. Can cause central nervous system depression, anemia, bronchitis. Flammable liquid when exposed to heat, sparks, or flame. To fight fire, use foam, alcohol foam, mist. Emitted from modern building materials (CENEAR 69,22,91). When heated to decomposition it emits acrid smoke and irritating fumes.

Source

Detected in distilled water-soluble fractions of 87 octane gasoline (1.11 mg/L), 94 octane gasoline (3.11 mg/L), Gasohol (2.90 mg/L), No. 2 fuel oil (0.51 mg/L), jet fuel A (0.44 mg/L), diesel fuel (0.39 mg/L), and military jet fuel JP-4 (0.39 mg/L) (Potter, 1996). Schauer et al. (1999) reported 1,2,4-trimethylbenzene in a diesel-powered medium-duty truck exhaust at an emission rate of 880 μg/km.
California Phase II reformulated gasoline contained 1,2,4-trimethylbenzene at a concentration of 24.6 g/kg. Gas-phase tailpipe emission rates from gasoline-powered automobiles with and without catalytic converters were 5.72 and 602 mg/km, respectively (Schauer et al., 2002).
Thomas and Delfino (1991) equilibrated contaminant-free groundwater collected from Gainesville, FL with individual fractions of three individual petroleum products at 24–25 °C for 24 h. The aqueous phase was analyzed for organic compounds via U.S. EPA approved test method 602. Average 1,2,4-trimethylbenzene concentrations reported in water-soluble fractions of unleaded gasoline, kerosene, and diesel fuel were 1.952, 0.478, and 0.130 mg/L, respectively.
When the authors analyzed the aqueous-phase via U.S. EPA approved test method 610, average 1,2,4-trimethylbenzene concentrations in water-soluble fractions of unleaded gasoline, kerosene, and diesel fuel were generally greater, i.e., 1.968, 0.401, and 0.146 mg/L, respectively.
Drinking water standard: No MCLGs or MCLs have been proposed (U.S. EPA, 2000).

환경귀착

Biological. In anoxic groundwater near Bemidji, MI, 1,2,4-trimethylbenzene anaerobically biodegraded to the intermediate 3,4-dimethylbenzoic acid and the tentatively identified compounds 2,4- and/or 2,5-dimethylbenzoic acid (Cozzarelli et al., 1990).
Photolytic. Glyoxal, methylglyoxal, and biacetyl were produced from the photooxidation of 1,2,4-trimethylbenzene by OH radicals in air at 25 °C (Tuazon et al., 1986a). A rate constant of 2.0 x 10-8 L/molecule?sec was reported for the reaction of 1,2,4-trimethylbenzene with OH radicals in the gas phase (Darnall et al., 1976). Similarly, the rate constants for the reaction of 1,2,4- trimethylbenzene and OH radicals at room temperature were 3.35 x 10-11 (Hansen et al., 1975) and 3.84 x 10-11 cm3/molecule?sec (Atkinson, 1985). At 25 °C, a rate constant of 3.15 x 10-11 cm3/molecule?sec was reported for the same reaction (Ohta and Ohyama, 1985). Products identified from the OH radical-initiated reaction of 1,2,4-trimethylbenzene in the presence of nitrogen dioxide were 3-hexene-2,5-dione and 2,3-butanedione (Bethel et al., 2000).
Chemical/Physical. 1,2,4-Trimethylbenzene will not hydrolyze in water (Kollig, 1993).

Purification Methods

Reflux pseudocumene over sodium and distil it under reduced pressure. [Beilstein 6 H 1088, 6 I 542, 6 II 1072, 6 III 6278, 6 IV 7339.]

1,2,4-트리메틸벤젠 준비 용품 및 원자재

원자재

준비 용품


1,2,4-트리메틸벤젠 공급 업체

글로벌( 172)공급 업체
공급자 전화 팩스 이메일 국가 제품 수 이점
Mainchem Co., Ltd.
+86-0592-6210733
+86-0592-6210733 sales@mainchem.com CHINA 32447 55
NINGBO INNO PHARMCHEM CO., LTD.
13867897135
sales@nbinno.com CHINA 925 58
Haihang Industry Co.,Ltd
86-531-88032799
+86 531 8582 1093 export@haihangchem.com CHINA 8921 58
QUALITY CONTROL CHEMICALS INC.
(323) 306-3136
(626) 453-0409 orders@qcchemical.com United States 8407 58
Xiamen AmoyChem Co., Ltd
+86 592-605 1114
sales@amoychem.com CHINA 6372 58
Kono Chem Co., Ltd
+86-132 8924 6953(Whatsapp/Wechat)
+86-29-86107037 info@konochemical.com CHINA 2997 58
Hubei xin bonus chemical co. LTD
86-13657291602
027-59338440 sales@guangaobio.com CHINA 23049 58
Shanghai Aladdin Bio-Chem Technology Co.,LTD 021-20337333/400-620-6333
021-50323701 sale@aladdin-e.com China 24986 65
J & K SCIENTIFIC LTD. 400-666-7788 +86-10-82848833
86-10-82849933 jkinfo@jkchemical.com;market6@jkchemical.com China 96815 76
Meryer (Shanghai) Chemical Technology Co., Ltd. +86-(0)21-61259100(Shanghai) +86-(0)755-86170099(ShenZhen) +86-(0)10-62670440(Beijing)
+86-(0)21-61259102(Shanghai) +86-(0)755-86170066(ShenZhen) +86-(0)10-88580358(Beijing) sh@meryer.com China 40269 62

1,2,4-트리메틸벤젠 관련 검색:

Copyright 2019 © ChemicalBook. All rights reserved