对二甲苯

对二甲苯用途

【用途一】
用于橡胶、油漆的溶剂及航空动力燃料的添加剂
【用途二】
用作色谱分析标准物质和溶剂，也用于有机合成
【用途三】
用作生产聚酯纤维和树脂、涂料、染料及农药的原料
【用途四】
用于生产对苯二甲酸，进而生产对苯二甲酸乙二醇酯、丁二醇酯等聚酯树脂。聚酯树脂是生产涤纶纤维、聚酯薄片，聚酯中空容器的原料。绦纶纤维是我国目前第一大合成纤维。也用作涂料、染料和农药等的原料。
【用途五】
溶剂。有机合成。气相色谱分析标准。
【用途六】
溶剂。有机合成。气相色谱分析标准。用于生产对苯二甲酸，进而生产对苯二甲酸乙二醇酯；丁二醇酯等聚酯树脂。聚酯树脂是生产涤纶纤维；聚酯薄片，聚酯中空容器的原料。绦纶纤维是我国目前第一大合成纤维。也用作涂料；染料和农药等的原料.用于ICP-AES、AAS、AFS、ICP-MS、离子色谱等。滴定分析用标准溶液。校准仪器和装置；评价方法；工作标准；质量保证/质量控制；其他。

点击显示

对二甲苯名称

[ CAS 号 ]:
106-42-3

[ 中文名 ]:
对二甲苯

[ 英文名 ]:
p-Xylene

[中文别名 ]:

[英文别名 ]:

MFCD00008556
4-methyltoluene
1,4-Dimethylbenzene
Paraxylene
1,4-dimethyl-benzene
para-xylene
EINECS 203-396-5
p-methyl-toluene
p-Xylol
p-dimethylbenzene

对二甲苯物理化学性质

[ 密度 ]:
0.861

[ 沸点 ]:
138 °C at 760 mmHg

[ 熔点 ]:
13ºC

[ 分子式 ]:
C₈H₁₀

[ 分子量 ]:
106.165

[ 闪点 ]:
27.2±0.0 °C

[ 精确质量 ]:
106.078247

[ LogP ]:
3.14

[ 外观性状 ]:
无色液体

[ 蒸汽密度 ]:
3.7 (vs air)

[ 蒸汽压 ]:
7.9±0.1 mmHg at 25°C

[ 折射率 ]:
1.500

[ 储存条件 ]:
库房通风低温干燥,轻装轻卸、与氧化剂和酸类分开存放

[ 稳定性 ]:
Stable. Incompatible with oxidizing agents. Hygroscopic. Flammable.

[ 水溶解性 ]:
水溶性：不溶；水溶解度：198 mg/l 25 °C；混溶：乙醚,丙酮,醇

对二甲苯MSDS

详细MSDS(安全技术说明书)

对二甲苯毒性和生态

CHEMICAL IDENTIFICATION

RTECS NUMBER :: ZE2625000

CHEMICAL NAME :: p-Xylene

CAS REGISTRY NUMBER :: 106-42-3

LAST UPDATED :: 199712

DATA ITEMS CITED :: 30

MOLECULAR FORMULA :: C8-H10

MOLECULAR WEIGHT :: 106.18

WISWESSER LINE NOTATION :: 1R D1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 5 gm/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: YAKUD5 Gekkan Yakuji. Pharmaceuticals Monthly. (Yakugyo Jihosha, Inaoka Bldg., 2-36 Jinbo-cho, Kanda, Chiyoda-ku, Tokyo 101, Japan) V.1- 1959- Volume(issue)/page/year: 22,883,1980

TYPE OF TEST :: LC50 - Lethal concentration, 50 percent kill

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 4550 ppm/4H

TOXIC EFFECTS :: Lungs, Thorax, or Respiration - chronic pulmonary edema Liver - other changes Blood - changes in cell count (unspecified)

REFERENCE :: 36YFAG "Biological Reactive Intermediates, Formation, Toxicity and Inactivation, Proceedings of the International Conference, Turku, Finland, 1975," Jollow, D.J., et al., eds., New York, Plenum Pub. Corp., 1977 Volume(issue)/page/year: -,302,1977

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 3810 mg/kg

TOXIC EFFECTS :: Lungs, Thorax, or Respiration - chronic pulmonary edema Liver - other changes Blood - changes in cell count (unspecified)

REFERENCE :: 36YFAG "Biological Reactive Intermediates, Formation, Toxicity and Inactivation, Proceedings of the International Conference, Turku, Finland, 1975," Jollow, D.J., et al., eds., New York, Plenum Pub. Corp., 1977 Volume(issue)/page/year: -,302,1977

TYPE OF TEST :: LCLo - Lowest published lethal concentration

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 15 gm/m3

TOXIC EFFECTS :: Behavioral - general anesthetic Lungs, Thorax, or Respiration - respiratory depression Cardiac - other changes

REFERENCE :: AEPPAE Naunyn-Schmiedeberg's Archiv fuer Experimentelle Pathologie und Pharmakologie. (Berlin, Ger.) V.110-253, 1925-66. For publisher information, see NSAPCC. Volume(issue)/page/year: 143,223,1929

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 2450 uL/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: ARTODN Archives of Toxicology. (Springer-Verlag, Heidelberger Pl. 3, D-1000 Berlin 33, Fed. Rep. Ger.) V.32- 1974- Volume(issue)/page/year: 58,106,1985

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Mammal - species unspecified

DOSE/DURATION :: 2 gm/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: JPBAA7 Journal of Pathology and Bacteriology. (London, UK) V.1-96, 1892-1968. For publisher information, see JPTLAS. Volume(issue)/page/year: 46,95,1938

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Mammal - species unspecified

DOSE/DURATION :: 5 gm/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: JPBAA7 Journal of Pathology and Bacteriology. (London, UK) V.1-96, 1892-1968. For publisher information, see JPTLAS. Volume(issue)/page/year: 46,95,1938 ** REPRODUCTIVE DATA **

TYPE OF TEST :: TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :: Inhalation

DOSE :: 3000 mg/m3/24H

SEX/DURATION :: female 9-10 day(s) after conception

TOXIC EFFECTS :: Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death, e.g., stunted fetus) Reproductive - Maternal Effects - other effects Endocrine - estrogenic

REFERENCE :: TXCYAC Toxicology. (Elsevier Scientific Pub. Ireland, Ltd., POB 85, Limerick, Ireland) V.1- 1973- Volume(issue)/page/year: 19,263,1981

TYPE OF TEST :: TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :: Inhalation

DOSE :: 150 mg/m3/24H

SEX/DURATION :: female 7-14 day(s) after conception

TOXIC EFFECTS :: Reproductive - Effects on Embryo or Fetus - extra-embryonic structures (e.g., placenta, umbilical cord) Reproductive - Specific Developmental Abnormalities - musculoskeletal system

REFERENCE :: TXCYAC Toxicology. (Elsevier Scientific Pub. Ireland, Ltd., POB 85, Limerick, Ireland) V.1- 1973- Volume(issue)/page/year: 18,61,1980

TYPE OF TEST :: TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :: Inhalation

DOSE :: 3000 mg/m3/24H

SEX/DURATION :: female 7-14 day(s) after conception

TOXIC EFFECTS :: Reproductive - Fertility - post-implantation mortality (e.g. dead and/or resorbed implants per total number of implants) Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death, e.g., stunted fetus)

REFERENCE :: TXCYAC Toxicology. (Elsevier Scientific Pub. Ireland, Ltd., POB 85, Limerick, Ireland) V.1- 1973- Volume(issue)/page/year: 18,61,1980

TYPE OF TEST :: TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :: Inhalation

DOSE :: 7 gm/m3

SEX/DURATION :: female 7-16 day(s) after conception

TOXIC EFFECTS :: Reproductive - Maternal Effects - other effects

REFERENCE :: TOLED5 Toxicology Letters. (Elsevier Science Pub. B.V., POB 211, 1000 AE Amsterdam, Netherlands) V.1- 1977- Volume(issue)/page/year: 34,223,1986

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

DOSE :: 12 mg/kg

SEX/DURATION :: female 12-15 day(s) after conception

TOXIC EFFECTS :: Reproductive - Specific Developmental Abnormalities - craniofacial (including nose and tongue)

REFERENCE :: APTOD9 Abstracts of Papers, Society of Toxicology. Annual Meetings. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) Volume(issue)/page/year: 19,A22,1980

TYPE OF TEST :: TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :: Inhalation

DOSE :: 500 mg/m3/12H

SEX/DURATION :: female 6-15 day(s) after conception

TOXIC EFFECTS :: Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death, e.g., stunted fetus) Reproductive - Specific Developmental Abnormalities - musculoskeletal system

REFERENCE :: ATSUDG Archives of Toxicology, Supplement. (Springer-Verlag New York, Inc., Service Center, 44 Hartz Way, Secaucus, NJ 07094) No.1- 1978- Volume(issue)/page/year: 8,425,1985

TYPE OF TEST :: TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :: Inhalation

DOSE :: 1 gm/m3/24H

SEX/DURATION :: female 7-20 day(s) after conception

REFERENCE :: ATSUDG Archives of Toxicology, Supplement. (Springer-Verlag New York, Inc., Service Center, 44 Hartz Way, Secaucus, NJ 07094) No.1- 1978- Volume(issue)/page/year: 8,425,1985 *** REVIEWS *** ACGIH TLV-Not classifiable as a human carcinogen DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) booklet issues by American Conference of Governmental Industrial Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year: TLV/BEI,1997 ACGIH TLV-STEL 651 mg/m3 (150 ppm) DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) booklet issues by American Conference of Governmental Industrial Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year: TLV/BEI,1997 ACGIH TLV-TWA 434 mg/m3 (100 ppm) DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) booklet issues by American Conference of Governmental Industrial Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year: TLV/BEI,1997 TOXICOLOGY REVIEW MUREAV Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE Amsterdam, Netherlands) V.1- 1964- Volume(issue)/page/year: 47,75,1978 *** U.S. STANDARDS AND REGULATIONS *** MSHA STANDARD-air:TWA 100 ppm (440 mg/m3) (skin) DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) booklet issues by American Conference of Governmental Industrial Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year: 3,281,1971 OSHA PEL (Gen Indu):8H TWA 100 ppm (435 mg/m3) CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1910.1000,1994 OSHA PEL (Construc):8H TWA 100 ppm (435 mg/m3) CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1926.55,1994 OSHA PEL (Shipyard):8H TWA 100 ppm (435 mg/m3) CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1915.1000,1993 OSHA PEL (Fed Cont):8H TWA 100 ppm (435 mg/m3) CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 41,50-204.50,1994 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH RECOMMENDED EXPOSURE LEVEL (REL) : NIOSH REL TO p-XYLENE-air:10H TWA 100 ppm;STEL 150 ppm REFERENCE : NIOSH* National Institute for Occupational Safety and Health, U.S. Dept. of Health, Education, and Welfare, Reports and Memoranda. Volume(issue)/page/year: DHHS #92-100,1992 NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - M1028 No. of Facilities: 62 (estimated) No. of Industries: 4 No. of Occupations: 10 No. of Employees: 1912 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - M1028 No. of Facilities: 1994 (estimated) No. of Industries: 22 No. of Occupations: 21 No. of Employees: 20366 (estimated) No. of Female Employees: 6336 (estimated)

点击显示

对二甲苯安全信息

[ 符号 ]:

GHS02, GHS07

[ 信号词 ]:
Warning

[ 危害声明 ]:
H226-H312 + H332-H315

[ 警示性声明 ]:
P280

[ 个人防护装备 ]:
Eyeshields;Faceshields;full-face respirator (US);Gloves;multi-purpose combination respirator cartridge (US);type ABEK (EN14387) respirator filter

[ 危害码 (欧洲) ]:
Xn:Harmful

[ 风险声明 (欧洲) ]:
R10;R20/21;R38

[ 安全声明 (欧洲) ]:
S25

[ 危险品运输编码 ]:
UN 1307 3/PG 3

[ WGK德国 ]:
2

[ RTECS号 ]:
ZE2625000

[ 包装等级 ]:
III

[ 危险类别 ]:
3.0

[ 海关编码 ]:
2902430000

对二甲苯合成路线

详细合成路线

对二甲苯上下游产品

对二甲苯上游产品

对二甲苯下游产品

对二甲苯制备

1.石油二甲苯、煤焦油二甲苯中，都含有相当量的对二甲苯。由于对、间二甲苯的沸点差只有0.75℃，故不能采用精馏分离法，目前国内外研究发展的方法是低温结晶分离法、吸附分离法和络合分离法。低温结晶分离法利用二甲苯异构体的熔点差异进行分离，主要方法为深冷分步结晶，工艺技术成熟，目前在二甲苯分离中占优势。但此法设备庞大，对二甲苯受共熔点的限制，回收率低，只有60-70%。吸附分离法是70年代发展的新方法，此法比深冷结晶法投资少，生产总成本低，对二甲苯收率高，纯度也高，有可能取代深冷结晶法。2.原料甲苯在烷基转移反应器中，进行烷基转移反应，生成二甲苯和苯。混合二甲苯在异构化反应器中，使部分间二甲苯异构化生成对二甲苯，反应物在稳定塔中除去轻馏分后与烷基转移工段来的二甲苯混合进入脱C9馏分塔，在塔顶获得对二甲苯含量较高的混合二甲苯，塔釜为C9以上组分。从稳定塔塔顶得到的混合二甲苯进入吸附分离工段，采用非分子筛型固体吸附剂吸附对二甲苯，解吸得纯度高达99.9%的对二甲苯产品，同时副产间二甲苯。此外，还有氟化氢-三氟化硼抽提法。

2.从石油中所得混合二甲苯经分离精制，通过高效精馏，分级结晶。所用溶剂包括甲醇、乙醇、异丙醇、丙酮、丁醇、甲苯、戊烷或戊烯等。为制备色谱纯对二甲苯，可以氮气为载气，在装有OV-1*－Bentone34* ／白色硅藻土担体固定相柱的制备气相色谱仪上注入其粗品或混合二甲苯，经分离收集对二甲苯组分，然后装入玻璃安瓿瓶密封即可。
*：一种美国生产的、用作气相色谱固定相的聚合硅酮油。
*：一种美国生产的有机皂土的牌号。

点击显示

对二甲苯海关

[ 海关编码 ]: 2902430000

[ 中文概述 ]:
2902430000 对二甲苯。监管条件:无。增值税率:17.0%。退税率:13.0%。最低关税:2.0%。普通关税:20.0%

[ 申报要素 ]: 品名, 成分含量

[ Summary ]:
2902430000 p-xylene。Supervision conditions:None。VAT:17.0%。Tax rebate rate:13.0%。Lowest tariff:2.0%。General tariff:20.0%

对二甲苯文献

Convenient QSAR model for predicting the complexation of structurally diverse compounds with β-cyclodextrins

Bioorg. Med. Chem. 17 , 896-904, (2009)

This paper reports a QSAR study for predicting the complexation of a large and heterogeneous variety of substances (233 organic compounds) with beta-cyclodextrins (beta-CDs). Several different theoret...

QSPR modeling of octanol/water partition coefficient for vitamins by optimal descriptors calculated with SMILES.

Eur. J. Med. Chem. 43 , 714-40, (2008)

Simplified molecular input line entry system (SMILES) has been utilized in constructing quantitative structure-property relationships (QSPR) for octanol/water partition coefficient of vitamins and org...

Separations of substituted benzenes and polycyclic aromatic hydrocarbons using normal- and reverse-phase high performance liquid chromatography with UiO-66 as the stationary phase.

J. Chromatogr. A. 1370 , 121-8, (2014)

Metal-organic frameworks (MOFs) have great potential for applications in chromatography due to their highly tailorable porous structures and unique properties. In this work, the stable MOF UiO-66 was ...

更多文献

对二甲苯

对二甲苯用途

对二甲苯名称

对二甲苯物理化学性质

对二甲苯MSDS

详细MSDS(安全技术说明书)

对二甲苯毒性和生态

CHEMICAL IDENTIFICATION

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

对二甲苯安全信息

对二甲苯合成路线

详细合成路线

对二甲苯上下游产品

对二甲苯上游产品

对二甲苯下游产品

对二甲苯制备

对二甲苯海关

对二甲苯文献

相关化工产品/化学物质：

推荐生产厂家/供应商：

相关化合物