Mesitylene 1,3,5-三甲基苯

CAS 108-67-8 MFCD00008538

化学结构图

108-67-8
SMILES: CC1CC(C)CC(C)C1

化学属性

Refractive index1.4990 to 1.5000
Boiling Point163-166
Melting Point-45
Flash Point50°C(lit.)
TSCAYes
Autoignition Point1022 °F
Vapor Density4.1 (vs air)
Vapor Pressure14 mmHg ( 55 °C)
Solubility不溶于水,溶于醇、醚、苯等多数有机溶剂。
Density0.844
Mol. FormulaC9H12
Mol. Weight120.00
Danger-Level-
pH-:-
Redox-

别名和识别编码

Chemical NameMesitylene
Synonym 1 3 5-TRIMETHYLBENZENE NEAT STANDARD FO& 1,3,5-TRIMETHYLBENZENE 1,3,5-TRIMETHYLBENZENE SINGLE COMPONENT STANDARD FOR EPA 1,3,5-TRIMETHYLBENZENE, 1GRAM, NEAT 1,3,5-Trimethylbenzene 1,3,5-trimethylbenzene 1,3,5-三甲基苯/均三甲苯 1,3,5-三甲苯;均三甲苯;1,3,5-三甲基苯 1,3,5甲基苯 1,3,5-三甲基苯 3,5-Dimethyltoluene C9H12 (1,3,5-trimethyl-benzene) Fleet-X I,3,5-TrimethylbenzolG%305 Mesitylen TMB Trimethylbenzol benzene, 1,3,5-trimethyl- s-Trimethylbenzene sym-Trimethylbenzene trimethylbenzene(non-specificname) 均三甲苯 均三甲苯;1,3,5-三甲基苯
CAS Number108-67-8
PubChem Substance ID87576413
EC Number203-604-4
Beilstein Registry Number906806
MDL NumberMFCD00008538
Reaxys-RN906806
Merck Number5907
Chemical Name Translation1,3,5-三甲基苯
Wiswesser Line Notation1R C1 E1
LabNetwork Molecule IDLN00164621
InChIInChI=1S/C9H12/c1-7-4-8(2)6-9(3)5-7/h4-6H,1-3H3
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分类

  • Alpha Sort, Alphabetic, Analytical Standards, Analytical/Chromatography, Aromatics, Chemical Class, Chromatography, Environmental Standards, Hydrocarbons, M, MEA - MES, Neats, Volatiles/ Semivolatiles
  • {SNA} Additional Standards, Alpha Sort, Analytical Standards, Aromatics, Chemical Class, Chromatography, Environmental Standards, Hydrocarbons, M, M-P,
  • {SNA} Arenes, Building Blocks, Chemical Synthesis, Organic Building Blocks

产品应用

  • 有机合成原料,用于制取均苯三甲酸,以及抗氧化剂、环氧树脂固化剂、聚酯树脂稳定剂、醇酸树脂增塑剂,制取2,4,6-三甲苯胺用于生产活性艳蓝、K-3R等染料。

相关文献及参考

  • Short: II/25D
  • Merck:14,5907 Beilstein: 5,IV,1016
  • Merck:14,5907
  • The Adams modification of the Gattermann reaction for aromatic formylation by reaction with Zinc cyanide, L15836, and HCl is exemplified: Org. Synth. Coll., 3, 549 (1955). The Vilsmeier formylation (see N,N-Dimethyl­formamide, A13547), has been extended to less activated substrates, including mesitylene, by use of the combination of DMF and triflic anhydride: J. Chem. Soc., Chem. Commun., 1571 (1990).
  • For conversion to mesitoic acid by Friedel-Crafts reaction with oxalyl chloride, and aqueous work-up, see: Org. Synth. Coll., 5, 706 (1973).

安全信息

GHS Symbol
WGK Germany2
Hazard Codes 3 Xi,N Xi,N,F,T Xi;N
Hazard statements
  • H225 Highly flammable liquid and vapour 高度易燃液体和蒸气
  • H226 Flammable liquid and vapour 易燃液体和蒸气
  • H304 May be fatal if swallowed and enters airways 吞食和进入呼吸道可能致命
  • H315 Causes skin irritation 会刺激皮肤
  • H319 Causes serious eye irritation 严重刺激眼睛
  • H335 May cause respiratory irritation 可能导致呼吸道刺激
  • H411 Toxictoaquaticlifewithlonglastingeffects 对水生生物有毒性并具有长期影响。
Personal Protective Equipment Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter
RTECSOX6825000
Precautionary statements
  • P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking. 远离热源/火花/明火/热的表面。——禁止吸烟。
  • P233 Keep container tightly closed. ?保持容器密闭。
  • P240 Ground/bond container and receiving equipment. 与地面接触/连接集装箱和接受设备。
  • P241+P242+P243
  • P261 Avoid breathing dust/fume/gas/mist/vapours/spray. 避免吸入粉尘/烟/气体/烟雾/蒸汽/喷雾。
  • P264 Wash hands thoroughly after handling. 处理后要彻底洗净双手。
  • P271 Use only outdoors or in a well-ventilated area.? 只能在室外或通风良好的地方使用。
  • P273 Avoid release to the environment. 避免释放到环境中。
  • P280 Wear protective gloves/protective clothing/eye protection/face protection. 戴防护手套/防护服/眼睛的保护物/面部保护物。
  • P301+P310+P331
  • P302+P352+P332+P313+P362+
  • P302+P352+P332+P313+P362+P364
  • P303+P361+P353
  • P304+P340+P312
  • P305+P351+P338
  • P305+P351+P338+P337+P313
  • P332+P313
  • P337+P313
  • P362 Take off contaminated clothing and wash before reuse. 脱掉污染的衣服,清洗后方可重新使用
  • P370+P378
  • P391 Collect spillage. Hazardous to the aquatic environment 收集对水环境有危害的泄漏物。
  • P403+P233
  • P403+P235
  • P405 Store locked up. 上锁保管。
  • P501 Dispose of contents/container to..… 处理内容物/容器.....
Signal word Danger Warning
UN Number 2325
Risk Statements
  • R10 Flammable 易燃
  • R11 Highly flammable 非常易燃
  • R23/24/25 Toxic by inhalation, in contact with skin and if swallowed 吸入,皮肤接触及吞食都有毒
  • R37 Irritating to respiratory system 刺激呼吸道
  • R37/38 Irritating to respiratory system and skin 对呼吸系统和皮肤有刺激性
  • R39/23/24/25 Toxic: danger of very serious irreversible effects through inhalation, in contact with skin and if swallowed 毒性:吸入,皮肤接触和吞食都会产生十分严重的不可逆危险
  • R51/53
Safety Statements
  • S2 Keep out of the reach of children 避免儿童触及;
  • S26 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice 眼睛接触后,立即用大量水冲洗并征求医生意见;
  • S36/37/39 Wear suitable protective clothing, gloves and eye/face protection 穿戴适当的防护服、手套和眼睛/面保护;
  • S61 Avoid release to the environment. Refer to special instructions/safety data sheet 避免释放到环境中,参考特别指示/安全收据说明书;
Packing GroupIII
Storage condition 密封阴凉保存。 储存温度2-8℃ 2-8°C
Hazard Class3
Warnings 危化品目录(2015)
TYPE OF TEST            : LC50 - Lethal concentration, 50 percent kill
ROUTE OF EXPOSURE       : Inhalation
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 24 gm/m3/4H
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   GISAAA Gigiena i Sanitariya.  For English translation, see HYSAAV.  (V/O
   Mezhdunarodnaya Kniga, 113095 Moscow, USSR)  V.1-    1936-
   Volume(issue)/page/year: 44(5),15,1979

TYPE OF TEST            : TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE       : Inhalation
SPECIES OBSERVED        : Human
DOSE/DURATION           : 10 ppm
TOXIC EFFECTS :
   Peripheral Nerve and Sensation - sensory change involving peripheral nerve
   Behavioral - somnolence (general depressed activity)
   Lungs, Thorax, or Respiration - structural or functional change in trachea
   or bronchi
REFERENCE :
   ZUBEAQ Zeitschrift fuer Unfallmedizin und Berufskrankheiten. Revue de
   Medecine des Accidents et des Maladies Professionelles.  (Verlag
   Berichthaus, Zwingliplatz 3, Postfach, CH-8022, Zurich, Switzerland)  V.1-
   1907-  Volume(issue)/page/year: 49,265,1956

TYPE OF TEST            : LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE       : Intraperitoneal
SPECIES OBSERVED        : Rodent - guinea pig
DOSE/DURATION           : 1303 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   AMIHBC AMA Archives of Industrial Hygiene and Occupational Medicine.
   (Chicago, IL)  V.2-10, 1950-54. For publisher information, see AEHLAU.
   Volume(issue)/page/year: 9,227,1954

Restrict -

其他信息

  • 急性毒性:吸入- 大鼠 LC50: 24000 毫克/ 立方米/ 4小时
  • 几乎不溶于水(0.002g/100g),溶于乙醇,能以任意比例溶于苯、乙醚、丙酮。易燃。有刺激性。
  • 下游产品:对甲氧基苯甲醛 --> 间羟基苯甲酸 --> 2-[(氨基氧基)磺酰]-1,3,5-三甲基苯 --> 2,4,6-三甲基苯乙酸 --> 均三甲苯胺 --> 左旋多巴 --> 2,4,6-三甲基苯磺酰氯 --> 活性蓝74 --> 3,5-二甲基苯甲酸 --> 扁叶香果兰(VANILLA PLANIFOLIA)果 --> 2,4-二磺酰氯基均三甲苯 --> 2,4,6-三甲基苯甲醛 --> 2-溴-1,3,5-三甲基苯 --> 均苯三酸 --> 2-硝基间三甲苯
  • 概述:均三甲苯(又称1,3,5-三甲苯,分子式C9H12)分子结构为苯环C原子以sp2杂化轨道形成σ键,其它C原子以sp3杂化轨道形成σ键,是一个在多种有机化合物中存在的官能团。是苯环上三个氢对称地被三个甲基取代而得到的芳香烃。 广泛存在于煤焦油和某些石油中。外观为无色液体,有毒,易燃易爆。凝固点-44.72℃,熔点-44.7℃,沸点164.7℃,相对密度0.8652(20/4℃)。均三甲苯用稀硝酸氧化可生成1,3,5-苯三甲酸。纯均三甲苯由丙酮在300~500℃下气相催化脱水制得。 均三甲苯是重要的有机化工原料,利用均三甲苯可以开发出三甲苯、均苯三酸、均苯甲酸酐等多种染料中间体,还可用于生产抗氧剂、聚酯树脂固化剂、稳定剂、醇酸树脂增塑剂等。由于均三甲苯是一种良好的溶剂,它可燃,有刺激性,而且凝固点很低。在电子工业中,它被用作硅酮感光片的显影剂。 均三甲苯也是一种城市中常见的挥发性有机化合物(VOC),主要由燃烧产生。它在很多大气化学的反应中发挥重要作用(包括气雾和对流层臭氧的生成)。由于芳环上的三个氢有着相同的化学环境,均三甲苯的核磁共振氢谱中只在6.8ppm附近给出一个峰面积对应于3个氢的单峰。因此,均三甲苯有时在包含芳香质子的有机样品的核磁共振测定中用作内标物。 目前国内市场均三甲苯年需求量10万吨左右。
  • 刺激数据:皮肤- 兔子 20 毫克/ 24小时 中度; 眼睛- 兔子 500 毫克/ 24小时 轻度
  • 方法一:1.由C9芳烃分离而得。2.在重整重芳烃中均三甲苯约11.8%。但由于它的沸点(164.7℃)与邻甲乙基苯沸点极其相近(165.15℃),采用精馏法难以分离。3.以偏三甲苯为原料的异构化法,分馏所得的1,3,5-三甲苯的单程产率为21.6%,纯度达95%以上,同时副产品有4%-7%的均四甲苯和9%的二甲苯。反应器床层平均温度260℃,压力2.35MPa,空整1.0h-1,重整氢与油的摩尔比为10:1,催化剂为缺铝氢型丝光沸石:铜:镍:粘结剂=85.2:0.5:15。在此条件下,偏三甲苯转化率46%,选择性47%,均三甲苯单程产率21.6%。日本三菱瓦斯公司用HF-BF3进行二甲苯分离、异构化,副产品含高浓度1,3,5-三甲苯的高沸物,经蒸馏精制可得该品。4.丙酮在硫酸催化下脱水合成以13%-15%的收率可获得该品。将4600g(79mol)工业丙酮冷却至0-5℃,搅拌下加入4160ml浓硫酸,温度不超过10℃。加毕继椟搅拌3-4h,在室温放置18-24h。将产物进行水蒸气蒸馏,分离出1,3,5-三甲苯,再进行碱洗、水洗,蒸馏收集210℃馏分,在此馏分中加15g金属钠,加热至近沸点,蒸去2/3的液体,将剩余物蒸馏到210℃,高效分馏收集163-167℃馏分,得430-470g1,3,5-三甲苯。
  • 外观性质:无色液体,有特殊气
  • {Chemical
  • 均三甲苯价格(试剂级):更新日期 产品编号 产品名称 包装 价格 2011/08/23 80079526 1,3,5-三甲苯 100ml 35元 2011/04/16 S0658 1,3,5-三甲基苯(1mg/ml的甲醇溶液)[用于水分析] 1,3,5-Trimethylbenzene (1mg/ml in Methanol) [for Water Analysis] 1ML 198元 2011/04/16 T0470 1,3,5-三甲苯 1,3,5-Trimethylbenzene 25ML 131元
  • 图谱信息:均三甲苯(108-67-8)核磁图( 13 CNMR) 均三甲苯(108-67-8)Raman光谱 均三甲苯(108-67-8)红外图谱(IR2)

系列性分类