二甲苯

二甲苯用途

【用途一】
广泛用作有机溶剂和合成医药、涂料、树脂、染料、炸药和农药等的原料
【用途二】
用作清洗剂
【用途三】
混合二甲苯是邻、间、对二甲苯和乙基苯的混合物。作为化学原料使用时，可将各异构体预先分离。混合物主要用作油漆涂料的溶剂和航空汽油添加剂。
【用途四】
溶剂、测定许多有机化合物中水分，显微镜清洁剂。硅元件和热敏电阻等的清洗剂。混合二甲苯是邻；间；对二甲苯和乙基苯的混合物。作为化学原料使用时，可将各异构体预先分离。混合物主要用作油漆涂料的溶剂和航空汽油添加剂。

二甲苯名称

[ CAS 号 ]:
1330-20-7

[ 中文名 ]:
二甲苯

[ 英文名 ]:
Dimethyl benzene

[中文别名 ]:

[英文别名 ]:

m-xylene,o-xylene,p-xylene,mixture of
MFCD00077264
XYLENES
EINECS 215-535-7
Xylenes,mixed isomers with ethylbenzene
o-xylene,m-xylene,p-xylene,mixture of
ksylen
XYLOL
xylenen
xylole

二甲苯物理化学性质

[ 密度 ]:
0.9±0.1 g/cm3

[ 沸点 ]:
145.9±10.0 °C at 760 mmHg

[ 熔点 ]:
-34 °C

[ 分子式 ]:
C₈H₁₀

[ 分子量 ]:
106.165

[ 闪点 ]:
32.2±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 ]:
6.0±0.1 mmHg at 25°C

[ 折射率 ]:
1.500

[ 储存条件 ]:
包装完整、轻装轻卸,库房通风、远离明火、高温、与氧化剂分开存放

[ 水溶解性 ]:
<0.1 g/L (20 ºC)

二甲苯MSDS

详细MSDS(安全技术说明书)

二甲苯毒性和生态

CHEMICAL IDENTIFICATION

RTECS NUMBER :: ZE2100000

CHEMICAL NAME :: Xylene

CAS REGISTRY NUMBER :: 1330-20-7

BEILSTEIN REFERENCE NO. :: 1901563

LAST UPDATED :: 199712

DATA ITEMS CITED :: 85

MOLECULAR FORMULA :: C8-H10

MOLECULAR WEIGHT :: 106.18

WISWESSER LINE NOTATION :: 1R X1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: Standard Draize test

ROUTE OF EXPOSURE :: Administration into the eye

SPECIES OBSERVED :: Human

REFERENCE :: JIHTAB Journal of Industrial Hygiene and Toxicology. (Cambridge, MA) V.18-31, 1936-49. For publisher information, see AEHLAU. Volume(issue)/page/year: 25,282,1943

TYPE OF TEST :: Standard Draize test

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - rabbit

REFERENCE :: AMIHAB AMA Archives of Industrial Health. (Chicago, IL) V.11-21, 1955-60. For publisher information, see AEHLAU. Volume(issue)/page/year: 14,387,1956

TYPE OF TEST :: Standard Draize test

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - rabbit

REFERENCE :: 28ZPAK "Sbornik Vysledku Toxixologickeho Vysetreni Latek A Pripravku," Marhold, J.V., Institut Pro Vychovu Vedoucicn Pracovniku Chemickeho Prumyclu Praha, Czechoslovakia, 1972 Volume(issue)/page/year: -,24,1972

TYPE OF TEST :: Standard Draize test

ROUTE OF EXPOSURE :: Administration into the eye

SPECIES OBSERVED :: Rodent - rabbit

REFERENCE :: AMIHAB AMA Archives of Industrial Health. (Chicago, IL) V.11-21, 1955-60. For publisher information, see AEHLAU. Volume(issue)/page/year: 14,387,1956

TYPE OF TEST :: Standard Draize test

ROUTE OF EXPOSURE :: Administration into the eye

SPECIES OBSERVED :: Rodent - rabbit

REFERENCE :: 28ZPAK "Sbornik Vysledku Toxixologickeho Vysetreni Latek A Pripravku," Marhold, J.V., Institut Pro Vychovu Vedoucicn Pracovniku Chemickeho Prumyclu Praha, Czechoslovakia, 1972 Volume(issue)/page/year: -,24,1972 ** ACUTE TOXICITY DATA **

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Human

DOSE/DURATION :: 50 mg/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 :: Human - man

DOSE/DURATION :: 10000 ppm/6H

TOXIC EFFECTS :: Behavioral - general anesthetic Lungs, Thorax, or Respiration - cyanosis Blood - other changes

REFERENCE :: BMJOAE British Medical Journal. (British Medical Assoc., BMA House, Tavistock Sq., London WC1H 9JR, UK) V.1- 1857- Volume(issue)/page/year: 3,442,1970

TYPE OF TEST :: TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Human

DOSE/DURATION :: 200 ppm

TOXIC EFFECTS :: Sense Organs and Special Senses (Olfaction) - effect, not otherwise specified Sense Organs and Special Senses (Eye) - conjunctive irritation Lungs, Thorax, or Respiration - other changes

REFERENCE :: JIHTAB Journal of Industrial Hygiene and Toxicology. (Cambridge, MA) V.18-31, 1936-49. For publisher information, see AEHLAU. Volume(issue)/page/year: 25,282,1943

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

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 4300 mg/kg

TOXIC EFFECTS :: Liver - other changes Kidney, Ureter, Bladder - other changes

REFERENCE :: AMIHAB AMA Archives of Industrial Health. (Chicago, IL) V.11-21, 1955-60. For publisher information, see AEHLAU. Volume(issue)/page/year: 14,387,1956

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

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 5000 ppm/4H

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

REFERENCE :: NPIRI* Raw Material Data Handbook, Vol.1: Organic Solvents, 1974. (National Assoc. of Printing Ink Research Institute, Francis McDonald Sinclair Memorial Laboratory, Lehigh Univ., Bethlehem, PA 18015) Volume(issue)/page/year: 1,123,1974

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

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 2459 mg/kg

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

REFERENCE :: ENVRAL Environmental Research. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1967- Volume(issue)/page/year: 40,411,1986

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

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 1700 mg/kg

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

REFERENCE :: NPIRI* Raw Material Data Handbook, Vol.1: Organic Solvents, 1974. (National Assoc. of Printing Ink Research Institute, Francis McDonald Sinclair Memorial Laboratory, Lehigh Univ., Bethlehem, PA 18015) Volume(issue)/page/year: 1,123,1974

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 6 gm/kg

TOXIC EFFECTS :: Behavioral - tremor Lungs, Thorax, or Respiration - dyspnea

REFERENCE :: NTPTR* National Toxicology Program Technical Report Series. (Research Triangle Park, NC 27709) No.206- Volume(issue)/page/year: NTP-TR-327,1986

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

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 1548 mg/kg

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

REFERENCE :: AGGHAR Archiv fuer Gewerbepathologie und Gewerbehygiene. (Berlin, Ger.) V.1-18, 1930-61. For publisher information, see IAEHDW. Volume(issue)/page/year: 18,109,1960

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

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: >1700 mg/kg

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

REFERENCE :: NPIRI* Raw Material Data Handbook, Vol.1: Organic Solvents, 1974. (National Assoc. of Printing Ink Research Institute, Francis McDonald Sinclair Memorial Laboratory, Lehigh Univ., Bethlehem, PA 18015) Volume(issue)/page/year: 1,123,1974

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Intravenous

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: 129 mg/kg

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

REFERENCE :: HAEMAX Haematologica. (Il Pensiero Scientifico Editore, Via Panama 48, I-00198, Rome, Italy) V.1- 1920- Volume(issue)/page/year: 58,491,1973

TYPE OF TEST :: LCLo - Lowest published lethal concentration

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - guinea pig

DOSE/DURATION :: 450 ppm

TOXIC EFFECTS :: Lungs, Thorax, or Respiration - other changes Liver - fatty liver degeneration

REFERENCE :: JIDHAN Journal of Industrial Hygiene. (Cambridge, MA) V.1-17, 1919-35. For publisher information, see AEHLAU. Volume(issue)/page/year: 10,261,1928

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - guinea pig

DOSE/DURATION :: 2 gm/kg

TOXIC EFFECTS :: Liver - fatty liver degeneration Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - other transferases

REFERENCE :: AIHAAP American Industrial Hygiene Association Journal. (AIHA, 475 Wolf Ledges Pkwy., Akron, OH 44311) V.19- 1958- Volume(issue)/page/year: 35,21,1974

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

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Mammal - species unspecified

DOSE/DURATION :: 4300 mg/kg

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

REFERENCE :: GTPZAB Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1-36, 1957-1992. For publisher information, see MTPEEI Volume(issue)/page/year: 32(10),25,1988

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

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Mammal - species unspecified

DOSE/DURATION :: 30 gm/m3

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

REFERENCE :: GTPZAB Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1-36, 1957-1992. For publisher information, see MTPEEI Volume(issue)/page/year: 32(10),25,1988

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Mammal - species unspecified

DOSE/DURATION :: 2 gm/kg

TOXIC EFFECTS :: Peripheral Nerve and Sensation - flaccid paralysis without anesthesia (usually neuromuscular blockage) Behavioral - convulsions or effect on seizure threshold Behavioral - irritability

REFERENCE :: AJHYA2 American Journal of Hygiene. (Baltimore, MD) V.1-80, 1921-64. For publisher information, see AJEPAS. Volume(issue)/page/year: 7,276,1927 ** OTHER MULTIPLE DOSE TOXICITY DATA **

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 28 gm/kg/14D-C

TOXIC EFFECTS :: Related to Chronic Data - death

REFERENCE :: NTPTR* National Toxicology Program Technical Report Series. (Research Triangle Park, NC 27709) No.206- Volume(issue)/page/year: NTP-TR-327,1986

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 63 gm/kg/90D-I

TOXIC EFFECTS :: Liver - changes in liver weight Endocrine - changes in adrenal weight Nutritional and Gross Metabolic - weight loss or decreased weight gain

REFERENCE :: BCTKAG Bromatologia i Chemia Toksykologiczna. (Ars Polona, POB 1001, 00-068 Warsaw 1, Poland) V.4- 1971- Volume(issue)/page/year: 21,187,1988

TYPE OF TEST :: TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 1600 ppm/20H/7D-I

TOXIC EFFECTS :: Behavioral - general anesthetic Blood - changes in erythrocyte (RBC) count Related to Chronic Data - death

REFERENCE :: AJHYA2 American Journal of Hygiene. (Baltimore, MD) V.1-80, 1921-64. For publisher information, see AJEPAS. Volume(issue)/page/year: 7,276,1927

TYPE OF TEST :: TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 15 mg/m3/24H/85D-C

TOXIC EFFECTS :: Brain and Coverings - recordings from specific areas of CNS Blood - changes in leukocyte (WBC) count

REFERENCE :: GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936- Volume(issue)/page/year: 32(3),3,1967

TYPE OF TEST :: TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 800 ppm/14H/6W-I

TOXIC EFFECTS :: Sense Organs and Special Senses (Ear) - change in acuity

REFERENCE :: JJATDK JAT, Journal of Applied Toxicology. (John Wiley & Sons Ltd., Baffins Lane, Chichester, W. Sussex PO19 1UD, UK) V.1- 1981- Volume(issue)/page/year: 7,55,1987

TYPE OF TEST :: TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 300 ppm/6H/18W-I

TOXIC EFFECTS :: Liver - other changes Kidney, Ureter, Bladder - other changes Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - hepatic microsomal mixed oxidase (dealkylation, hydroxylation, etc.)

REFERENCE :: XENOBH Xenobiotica. (Taylor & Francis Ltd., 4 John St., London WC1N 2ET, UK) V.1- 1971- Volume(issue)/page/year: 10,435,1980

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 12740 ug/kg/30D-I

TOXIC EFFECTS :: Blood - changes in serum composition (e.g. TP, bilirubin, cholesterol) Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - phosphatases Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - transaminases

REFERENCE :: TIHEEC Toxicology and Industrial Health. (Princeton Scientific Pub. Co., POB 2155, Princeton, NJ 08540) V.1- 1985- Volume(issue)/page/year: 9,479,1993

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 4128 mg/kg/3D-I

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

REFERENCE :: NETEEC Neurotoxicology and Teratology. (Pergamon Press Inc., Maxwell House, Fairview Park, Elmsford, NY 10523) V.9- 1987- Volume(issue)/page/year: 15,51,1993

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 28 gm/kg/14D-C

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

REFERENCE :: NTPTR* National Toxicology Program Technical Report Series. (Research Triangle Park, NC 27709) No.206- Volume(issue)/page/year: NTP-TR-327,1986 ** REPRODUCTIVE DATA **

TYPE OF TEST :: TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :: Inhalation

DOSE :: 250 mg/m3/24H

SEX/DURATION :: female 7-15 day(s) after conception

TOXIC EFFECTS :: 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 :: 50 mg/m3/6H

SEX/DURATION :: female 1-21 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) Reproductive - Specific Developmental Abnormalities - craniofacial (including nose and tongue)

REFERENCE :: JHEMA2 Journal of Hygiene, Epidemiology, Microbiology, and Immunology. (Avicenum, Malostranske namesti 28, 11802 Prague 1, Czechoslovakia) V.1- 1957- Volume(issue)/page/year: 27,337,1983

TYPE OF TEST :: TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :: Inhalation

DOSE :: 50 mg/m3/6H

SEX/DURATION :: female 1-21 day(s) after conception

TOXIC EFFECTS :: Reproductive - Specific Developmental Abnormalities - musculoskeletal system Reproductive - Specific Developmental Abnormalities - other developmental abnormalities Reproductive - Effects on Newborn - growth statistics (e.g.%, reduced weight gain)

REFERENCE :: JHEMA2 Journal of Hygiene, Epidemiology, Microbiology, and Immunology. (Avicenum, Malostranske namesti 28, 11802 Prague 1, Czechoslovakia) V.1- 1957- Volume(issue)/page/year: 27,337,1983

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Inhalation

DOSE :: 200 ppm/6H

SEX/DURATION :: female 4-20 day(s) after conception

TOXIC EFFECTS :: Reproductive - Specific Developmental Abnormalities - musculoskeletal system Reproductive - Effects on Newborn - behavioral

REFERENCE :: PHTOEH Pharmacology and Toxicology (Copenhagen). (Munksgaard International Pub., POB 2148, DK-1016 Copenhagen K, Denmark) V.60- 1987- Volume(issue)/page/year: 73,20,1993

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

DOSE :: 20600 ug/kg

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 - craniofacial (including nose and tongue) Reproductive - Specific Developmental Abnormalities - musculoskeletal system

REFERENCE :: JTEHD6 Journal of Toxicology and Environmental Health. (Hemisphere Pub., 1025 Vermont Ave., NW, Washington, DC 20005) V.1- 1975/76- Volume(issue)/page/year: 9,97,1982

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

DOSE :: 31 mg/kg

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

TOXIC EFFECTS :: Reproductive - Fertility - post-implantation mortality (e.g. dead and/or resorbed implants per total number of implants)

REFERENCE :: JTEHD6 Journal of Toxicology and Environmental Health. (Hemisphere Pub., 1025 Vermont Ave., NW, Washington, DC 20005) V.1- 1975/76- Volume(issue)/page/year: 9,97,1982

TYPE OF TEST :: TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :: Inhalation

DOSE :: 4000 ppm/6H

SEX/DURATION :: female 6-12 day(s) after conception

TOXIC EFFECTS :: Reproductive - Effects on Newborn - growth statistics (e.g.%, reduced weight gain) Reproductive - Effects on Newborn - physical

REFERENCE :: TJADAB Teratology, The International Journal of Abnormal Development. (Alan R. Liss, Inc., 41 E. 11th St., New York, NY 10003) V.1- 1968- Volume(issue)/page/year: 28,22A,1983

TYPE OF TEST :: TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :: Inhalation

DOSE :: 2000 ppm/6H

SEX/DURATION :: female 6-12 day(s) after conception

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

REFERENCE :: TJADAB Teratology, The International Journal of Abnormal Development. (Alan R. Liss, Inc., 41 E. 11th St., New York, NY 10003) V.1- 1968- Volume(issue)/page/year: 28,22A,1983

TYPE OF TEST :: TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :: Inhalation

DOSE :: 1 gm/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

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

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 IARC Cancer Review:Animal Inadequate Evidence IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210) V.1- 1972- Volume(issue)/page/year: 47,125,1989 IARC Cancer Review:Human Inadequate Evidence IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210) V.1- 1972- Volume(issue)/page/year: 47,125,1989 IARC Cancer Review:Group 3 IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210) V.1- 1972- Volume(issue)/page/year: 47,125,1989 TOXICOLOGY REVIEW DCTODJ Drug and Chemical Toxicology. (Marcel Dekker, 270 Madison Ave., New York, NY 10016) V.1- 1977/78- Volume(issue)/page/year: 8,281,1985 *** U.S. STANDARDS AND REGULATIONS *** EPA FIFRA 1988 PESTICIDE SUBJECT TO REGISTRATION OR RE-REGISTRATION FEREAC Federal Register. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) V.1- 1936- Volume(issue)/page/year: 54,7740,1989 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 *** OCCUPATIONAL EXPOSURE LIMITS *** OEL-ARAB Republic of Egypt:TWA 0.5 ppm (0.9 mg/m3) JAN 1993 OEL-AUSTRALIA:TWA 80 ppm (330 mg/m3);STEL 150 ppm (655 mg/m3) JAN 1993 OEL-BELGIUM:TWA 100 ppm (434 mg/m3);STEL 150 ppm (651 mg/m3) JAN 1993 OEL-DENMARK:TWA 50 ppm (217 mg/m3);Skin JAN 1993 OEL-FINLAND:TWA 100 ppm (435 mg/m3);STEL 150 ppm;Skin JAN 1993 OEL-FRANCE:TWA 100 ppm (435 mg/m3);STEL 150 ppm (650 mg/m3) JAN 1993 OEL-GERMANY:TWA 100 ppm (440 mg/m3) JAN 1993 OEL-HUNGARY:TWA 100 mg/m3;STEL 300 mg/m3 JAN 1993 OEL-JAPAN:TWA 100 ppm (430 mg/m3) JAN 1993 OEL-THE NETHERLANDS:TWA 100 ppm (435 mg/m3);Skin JAN 1993 OEL-THE PHILIPPINES:TWA 0.1 mg/m3 JAN 1993 OEL-POLAND:TWA 100 mg/m3 JAN 1993 OEL-SWEDEN:TWA 50 ppm (200 mg/m3);STEL 100 ppm (450 mg/m3);Skin JAN 1993 OEL-SWITZERLAND:TWA 100 ppm (436 mg/m3);STEL 200 ppm (870 mg/m3) JAN 1993 OEL-THAILAND:TWA 100 ppm (435 mg/m3) JAN 1993 OEL-TURKEY:TWA 100 ppm (435 mg/m3) JAN 1993 OEL-UNITED KINGDOM:TWA 100 ppm (435 mg/m3);STEL 150 ppm;Skin JAN 1993 OEL IN BULGARIA, COLOMBIA, JORDAN, KOREA check ACGIH TLV OEL IN NEW ZEALAND, SINGAPORE, VIETNAM check ACGIH TLV *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH RECOMMENDED EXPOSURE LEVEL (REL) : NIOSH REL TO XYLENE, isomers-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 - 76720 No. of Facilities: 99920 (estimated) No. of Industries: 367 No. of Occupations: 193 No. of Employees: 1016020 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 76720 No. of Facilities: 139914 (estimated) No. of Industries: 401 No. of Occupations: 230 No. of Employees: 2145039 (estimated) No. of Female Employees: 408656 (estimated)

二甲苯安全信息

[ 符号 ]:

GHS07, GHS08

[ 信号词 ]:
Danger

[ 危害声明 ]:
H304-H312 + H332-H315-H319-H335-H373-H412

[ 警示性声明 ]:
P260-P280-P301 + P310-P305 + P351 + P338-P331

[ 靶器官 ]:
Central nervous system, Kidney, Liver

[ 危害码 (欧洲) ]:
Xn:Harmful;F:Flammable;

[ 风险声明 (欧洲) ]:
R10;R20/21;R36/38

[ 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 ]:
ZE2100000

[ 包装等级 ]:
II

[ 危险类别 ]:
3

[ 海关编码 ]:
2707500000

二甲苯制备

1.由炼焦副产回收二甲苯二甲苯是生产苯的联产品。根据粗苯各组分的沸点不同，用精馏的方法提取沸程135～145℃的馏分，得二甲苯。具体工艺参见苯。

2.由铂重整油分离回收二甲苯炼油厂常用塔顶油经催化重整，抽提分离，先后可得苯、甲苯、混合二甲苯。如进一步分离可先得邻苯二甲酸、再得间、对混合二甲苯。具体工艺参见苯。

3.甲苯歧化法此法是在催化剂作用下，使一个甲苯的甲基转移到另一个甲苯上，生成苯和二甲苯。反应是用DF-166催化剂（缺铝氢型丝光沸石），以重整甲苯（硝化级）和重整循环氢（85%～90%）为原料，反应温度400℃±2℃，压力为2MPa左右，液体空速为0.5h-1，氢气与油的摩尔比为10∶1的条件下，反应所得的苯和二甲苯的单程收率达45%（质量）以上。液体产物中芳烃组成为：苯22%左右，甲苯44%左右。此法对满足合成涤纶所需对二甲苯具有很重要的意义。

4.将石油轻馏分混合苯经加氢精制，催化重整，分离而得二甲苯。或将焦化粗苯经洗涤、分馏而得。

5.制法在连续搅拌下将93%以上的工业硫酸慢慢加到工业二甲苯中至硫酸试验合格，静置半小时，取上层二甲苯清液，依次用蒸馏水、15%～20%的氢氧化钠充分洗涤至硫化物含量合格，用无水氯化钙脱水干燥后，进行减压蒸馏，收集合格馏分即为成品。

二甲苯海关

[ 海关编码 ]: 2707500000

二甲苯文献

Evaluation of injection methods for fast, high peak capacity separations with low thermal mass gas chromatography.

J. Chromatogr. A. 1392 , 82-90, (2015)

Low thermal mass gas chromatography (LTM-GC) was evaluated for rapid, high peak capacity separations with three injection methods: liquid, headspace solid phase micro-extraction (HS-SPME), and direct ...

Tissue distribution of the Ehrlichia muris-like agent in a tick vector.

PLoS ONE 10(3) , e0122007, (2015)

Human pathogens transmitted by ticks undergo complex life cycles alternating between the arthropod vector and a mammalian host. While the latter has been investigated to a greater extent, examination ...

Implications of chronic daily anti-oxidant administration on the inflammatory response to intracortical microelectrodes.

J. Neural Eng. 12 , 046002, (2015)

Oxidative stress events have been implicated to occur and facilitate multiple failure modes of intracortical microelectrodes. The goal of the present study was to evaluate the ability of a sustained c...

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二甲苯