间二甲苯

间二甲苯用途

用于生产间苯二甲酸、间甲基苯甲酸、间苯二甲腈等，也可用作医药、染料、香料、彩色胶片成色剂的原料
主要作溶剂，用于生产间苯二甲酸进而生产不饱和聚酯树脂和涂料，还用于生产间甲基苯甲酸、间苯二甲腈，医药利多卡因、氧甲唑啉，新泛影等。还可用于香料、彩色电影胶片的油溶性成色剂等的原料和染料中间体。由于生产间二甲苯的技术难度大，我国产量很少，无论产量还是质量都不能满足市场需要。

间二甲苯名称

[ CAS 号 ]:
108-38-3

[ 中文名 ]:
间二甲苯

[ 英文名 ]:
m-Xylene

[中文别名 ]:

[英文别名 ]:

1,3-xylene
Xylene, m-
Benzene, 1,3-dimethyl-
1,3-dimethyl-benzene
m-methyltoluene
BENZENE,1,3-DIMETHYL
m-Xylene [UN1307] [Flammable liquid]
m-Xylol
Metaxylene
MFCD00008536

间二甲苯物理化学性质

[ 密度 ]:
0.864

[ 沸点 ]:
139 ºC

[ 熔点 ]:
-48 °C

[ 分子式 ]:
C₈H₁₀

[ 分子量 ]:
106.165

[ 闪点 ]:
25.0±0.0 °C

[ 精确质量 ]:
106.078247

[ LogP ]:
3.14

[ 外观性状 ]:
透明无色液体

[ 蒸汽密度 ]:
3.7 (vs air)

[ 蒸汽压 ]:
7.6±0.1 mmHg at 25°C

[ 折射率 ]:
1.500

[ 储存条件 ]:
库房通风低温干燥,与氧化剂分开存放

[ 水溶解性 ]:
水溶性：不溶；水溶解度：162 mg/l 25 °C；混溶：丙酮,乙醚,醇

间二甲苯MSDS

间二甲苯毒性和生态

CHEMICAL IDENTIFICATION

RTECS NUMBER :: ZE2275000

CHEMICAL NAME :: m-Xylene

CAS REGISTRY NUMBER :: 108-38-3

LAST UPDATED :: 199712

DATA ITEMS CITED :: 35

MOLECULAR FORMULA :: C8-H10

MOLECULAR WEIGHT :: 106.18

WISWESSER LINE NOTATION :: 1R C1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: Open irritation test

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - rabbit

REFERENCE :: AIHAAP American Industrial Hygiene Association Journal. (AIHA, 475 Wolf Ledges Pkwy., Akron, OH 44311) V.19- 1958- Volume(issue)/page/year: 23,95,1962

TYPE OF TEST :: Standard Draize test

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - rabbit

REFERENCE :: 85JCAE "Prehled Prumyslove Toxikologie; Organicke Latky," Marhold, J., Prague, Czechoslovakia, Avicenum, 1986 Volume(issue)/page/year: -,30,1986

TYPE OF TEST :: Standard Draize test

ROUTE OF EXPOSURE :: Administration into the eye

SPECIES OBSERVED :: Rodent - rabbit

REFERENCE :: 85JCAE "Prehled Prumyslove Toxikologie; Organicke Latky," Marhold, J., Prague, Czechoslovakia, Avicenum, 1986 Volume(issue)/page/year: -,30,1986 ** ACUTE TOXICITY DATA **

TYPE OF TEST :: TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Human - man

DOSE/DURATION :: 424 mg/m3/6H/6D

TOXIC EFFECTS :: Behavioral - changes in motor activity (specific assay)

REFERENCE :: TOLED5 Toxicology Letters. (Elsevier Science Pub. B.V., POB 211, 1000 AE Amsterdam, Netherlands) V.1- 1977- Volume(issue)/page/year: 1000(Sp Iss 1),74,1980

TYPE OF TEST :: TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Human - man

DOSE/DURATION :: 870 mg/m3/4H-I

TOXIC EFFECTS :: Behavioral - ataxia Behavioral - irritability

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: 7,412,1984

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 :: LCLo - Lowest published lethal concentration

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 8000 ppm/4H

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

REFERENCE :: AIHAAP American Industrial Hygiene Association Journal. (AIHA, 475 Wolf Ledges Pkwy., Akron, OH 44311) V.19- 1958- Volume(issue)/page/year: 23,95,1962

TYPE OF TEST :: LCLo - Lowest published lethal concentration

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 2010 ppm/24H

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 :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 2003 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 :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: 14100 uL/kg

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

REFERENCE :: AIHAAP American Industrial Hygiene Association Journal. (AIHA, 475 Wolf Ledges Pkwy., Akron, OH 44311) V.19- 1958- Volume(issue)/page/year: 23,95,1962

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 ** OTHER MULTIPLE DOSE TOXICITY DATA **

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 10 gm/kg/4W-I

TOXIC EFFECTS :: Nutritional and Gross Metabolic - weight loss or decreased weight gain

REFERENCE :: TIHEEC Toxicology and Industrial Health. (Princeton Scientific Pub. Co., POB 2155, Princeton, NJ 08540) V.1- 1985- Volume(issue)/page/year: 1(3),67,1985

TYPE OF TEST :: TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 400 ppm/6H/2W-I

TOXIC EFFECTS :: Brain and Coverings - other degenerative changes Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - other Enzymes

REFERENCE :: ARTODN Archives of Toxicology. (Springer-Verlag, Heidelberger Pl. 3, D-1000 Berlin 33, Fed. Rep. Ger.) V.32- 1974- Volume(issue)/page/year: 45,117,1980 ** REPRODUCTIVE DATA **

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 - pre-implantation mortality (e.g. reduction in number of implants per female; total number of implants per corpora lutea) Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death, e.g., stunted fetus) 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 :: 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 :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

DOSE :: 30 mg/kg

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

TOXIC EFFECTS :: Reproductive - Fertility - litter size (e.g. # fetuses per litter; measured before birth)

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 :: 500 mg/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 m-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 - M1027 No. of Facilities: 96 (estimated) No. of Industries: 5 No. of Occupations: 21 No. of Employees: 4621 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - M1027 No. of Facilities: 4113 (estimated) No. of Industries: 33 No. of Occupations: 36 No. of Employees: 39864 (estimated) No. of Female Employees: 7449 (estimated)

间二甲苯安全信息

[ 符号 ]:

GHS02, GHS07, GHS08

[ 信号词 ]:
Danger

[ 危害声明 ]:
H226-H304-H312 + H332-H315-H319-H335-H412

[ 警示性声明 ]:
P261-P273-P280-P301 + P310-P305 + P351 + P338-P331

[ 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;R36/38

[ 安全声明 (欧洲) ]:
S25-S45-S36/37-S16-S7

[ 危险品运输编码 ]:
UN 1307 3/PG 3

[ WGK德国 ]:
2

[ RTECS号 ]:
ZE2275000

[ 包装等级 ]:
II

[ 危险类别 ]:
3

[ 海关编码 ]:
2902420000

间二甲苯合成路线

间二甲苯上下游产品

间二甲苯上游产品

间二甲苯下游产品

间二甲苯制备

1.其制备方法是利用石油二甲苯或煤焦油二甲苯进行分离，分离的方法可以用低温结晶法、配合法、吸附法和磺化水解法等。国内过去用磺化水解法生产间二甲苯，现在已采用吸附法分离间二甲苯。吸附法用分子筛为吸附剂，可以进行气相吸附，也可以进行液相吸附，其工艺分述如下。

(1)磺化水解法将混合二甲苯经精馏切取130～140℃馏分，再加硫酸磺化，反应温度80～90℃，反应时间3.5h，然后分出磺化二甲苯，再经水解、蒸馏，切取140～150℃馏分而得成品。该方法对设备腐蚀严重，并有较多的三废，仅能小规模生产，因此被吸附法所取代。

(2)吸附法采用分子筛进行液相吸附或气相吸附，液相吸附以K-Ba-Y型为吸附剂，甲苯为解吸剂，在移动床进行连续吸附分离，操作温度65～85℃，吸附剂与原料比不大于10，脱附剂与原料比大于5。气相吸附也采用K-Ba-Y型分子筛为吸附剂，吸附温度170～180℃，操作压力为常压。吸附分离法是近代分离二甲苯的新方法。

2.工业制备：由分馏煤焦油的轻油部分、催化重整轻油经分馏，或由甲苯竟歧化而成。

间二甲苯海关

[ 海关编码 ]: 2902420000

[ 中文概述 ]:
2902420000 间二甲苯。监管条件:无。增值税率:17.0%。退税率:9.0%。最低关税:2.0%。普通关税:20.0%

[ 申报要素 ]: 品名, 成分含量

[ Summary ]:
2902420000 m-xylene。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。Lowest tariff:2.0%。General tariff:20.0%

间二甲苯文献

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To establish the odor profiles of three differently fabricated commercial Swiss Tilsit cheeses, analyses were conducted using headspace solid-phase microextraction gas chromatography-mass spectrometry...

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...

Mechanisms of Particle Charging by Surfactants in Nonpolar Dispersions.

Langmuir 31 , 11989-99, (2015)

Electric charging of colloidal particles in nonpolar solvents plays a crucial role for many industrial applications and products, including rubbers, engine oils, toners, or electronic displays. Althou...

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