2-硝基甲苯,88-72-2，生产厂家，价格-洛克化工网移动版

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2-硝基甲苯

中文名称：: 2-硝基甲苯

中文别名：: 2-硝基甲苯;
1-甲基-2-硝基苯;
甲基邻硝基苯;
邻硝基甲苯

英文名称：: Benzene,1-methyl-2-nitro-

英文别名：: 2-nitrotoluene;
2NT;
ONT;
ortho-nitrotoluene;
o-itrotoluene;
2-Nitrotoluene;
O-NITROTOLUENE;
o-nitrotolueneu;
o-methylnitrobenzene;
o-nitrotoluol;
Toluene,o-nitro;
mononitrotoluene;
o-nitro-toluen;
2-nitro toluene;
2-Nitrotoluol;
2-methylnitrobenzene

CAS No.：: 88-72-2

分子式：: C₇H₇NO₂

分子量：: 137.14

精确分子量：: 137.04800

PSA：: 45.82000

MDL：: MFCD00007157

EINECS：: 201-853-3

BRN：: 1907580

InChI：: The Key: PLAZTCDQAHEYBI-UHFFFAOYSA-N3

危险品标志：: T:Toxic
N:Dangerous for the environment

风险术语：: R23/24/25; R33; R51/53;

安全术语：: S28B; S37; S45;

分子结构式：

SDS：

2-硝基甲苯制备方法及用途

制备方法

甲苯用混酸硝化,生成混合的硝基甲苯,其中主要是邻硝基甲苯(约占三分之二)和对硝基甲苯(约占三分之一),经分离即得纯品。将甲苯加入反应器中,冷却至25℃以下,加入配好的混酸(即硝酸25-30%,硫酸55-58%及水20-21%),调节温度不得超过50℃。连续搅拌1-2h,然后静置6h,将生成的硝基甲苯分离,水洗,碱洗,除去未反应的甲苯及脂肪族化合物,粗制硝基甲苯产品的组成为邻硝基甲苯55-60%、间位2-5%,对位35-40%。收率90-95%。利用沸点与熔点的差别进行粗馏与晶析,可分离出各异构体。即先将粗制硝基甲苯经真空蒸馏,分离出大部分的邻硝基甲苯,残余的含有较多对硝基甲苯的馏分,再经减压蒸馏分出,经冷却,结晶,分离即得成品。高沸点的焦油状物质残存在蒸馏釜中。间位硝基甲苯含在分离对位体后的母液中,经反复积累后再精馏获得。邻位和对位硝基甲苯纯度可分别达98%和99%。国内工艺芝程为两锅串联,反应温度主锅为40-45℃,次锅为50-55℃。混酸的配制大致相仿,硝酸26-28%,硫酸56-57%,水16-18%。原料消耗定额:甲苯(98%)800kg/t、硝酸(98%)470kg/t、硫酸(92.5%)450kg/t、烧碱(42%)100kg/t。

合成制备方法

甲苯用混酸硝化，生成混合的硝基甲苯，其中主要是邻硝基甲苯（约占三分之二）和对硝基甲苯（约占三分之一），经分离即得纯品。将甲苯加入反应器中，冷却至25℃以下，加入配好的混酸（即硝酸25-30%，硫酸55-58%及水20-21%），调节温度不得超过50℃。连续搅拌1-2h，然后静置6h，将生成的硝基甲苯分离，水洗，碱洗，除去未反应的甲苯及脂肪族化合物，粗制硝基甲苯产品的组成为邻硝基甲苯55-60%、间位2-5%，对位35-40%。收率90-95%。利用沸点与熔点的差别进行粗馏与晶析，可分离出各异构体。即先将粗制硝基甲苯经真空蒸馏，分离出大部分的邻硝基甲苯，残余的含有较多对硝基甲苯的馏分，再经减压蒸馏分出，经冷却，结晶，分离即得成品。高沸点的焦油状物质残存在蒸馏釜中。间位硝基甲苯含在分离对位体后的母液中，经反复积累后再精馏获得。邻位和对位硝基甲苯纯度可分别达98%和99%。国内工艺芝程为两锅串联，反应温度主锅为40-45℃，次锅为50-55℃。混酸的配制大致相仿，硝酸26-28%，硫酸56-57%，水16-18%。原料消耗定额：甲苯（98%）800kg/t、硝酸（98%）470kg/t、硫酸（92.5%）450kg/t、烧碱（42%）100kg/t。

用途简介

用于染料、医药、农药及塑料等工业。

用途

1.主要用于生产邻甲苯胺、联甲苯胺，是染料、涂料、塑料和医药的重要原料。在医药工业用于生产硝苯吡啶、痛惊宁、丙咪嗪盐酸盐、溴已胺盐酸盐、双氯苯唑青霉素钠等。还用作溶剂。

2.用于各种染料合成。^[23]

2-硝基甲苯毒理性

CHEMICAL IDENTIFICATION

RTECS NUMBER :: XT3150000

CHEMICAL NAME :: Toluene, o-nitro-

CAS REGISTRY NUMBER :: 88-72-2

LAST UPDATED :: 199712

DATA ITEMS CITED :: 38

MOLECULAR FORMULA :: C7-H7-N-O2

MOLECULAR WEIGHT :: 137.15

WISWESSER LINE NOTATION :: WNR B1

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 :: 891 mg/kg

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

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

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 790 mg/m3

TOXIC EFFECTS :: Brain and Coverings - recordings from specific areas of CNS Liver - fatty liver degeneration Blood - methemoglobinemia-carboxyhemoglobin

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

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 970 mg/kg

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

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

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 328 mg/m3

TOXIC EFFECTS :: Brain and Coverings - recordings from specific areas of CNS Liver - fatty liver degeneration Blood - methemoglobinemia-carboxyhemoglobin

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

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: 1750 mg/kg

TOXIC EFFECTS :: Brain and Coverings - recordings from specific areas of CNS Liver - fatty liver degeneration Blood - methemoglobinemia-carboxyhemoglobin

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 32123 mg/kg/13W-C

TOXIC EFFECTS :: Liver - changes in liver weight Blood - changes in platelet count Related to Chronic Data - changes in testicular weight

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 54600 mg/kg/26W-C

TOXIC EFFECTS :: Liver - changes in liver weight Nutritional and Gross Metabolic - weight loss or decreased weight gain Related to Chronic Data - changes in testicular weight

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 70343 mg/kg/13W-C

TOXIC EFFECTS :: Sense Organs and Special Senses (Olfaction) - olfactory nerve change Liver - changes in liver weight Kidney, Ureter, Bladder - changes in bladder weight

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 8400 mg/kg/14D-I

TOXIC EFFECTS :: Blood - changes in other cell count (unspecified)

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 54600 mg/kg/26W-C

TOXIC EFFECTS :: Tumorigenic - neoplastic by RTECS criteria Reproductive - Tumorigenic effects - other reproductive system tumors

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

DOSE :: 32123 mg/kg

SEX/DURATION :: male 13 week(s) pre-mating

TOXIC EFFECTS :: Reproductive - Paternal Effects - spermatogenesis (incl. genetic material, sperm morphology, motility, and count) Reproductive - Paternal Effects - testes, epididymis, sperm duct

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

DOSE :: 69154 mg/kg

SEX/DURATION :: female 13 week(s) pre-mating

TOXIC EFFECTS :: Reproductive - Maternal Effects - menstrual cycle changes or disorders

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

DOSE :: 140 gm/kg

SEX/DURATION :: male 13 week(s) pre-mating

TOXIC EFFECTS :: Reproductive - Paternal Effects - spermatogenesis (incl. genetic material, sperm morphology, motility, and count)

TYPE OF TEST :: DNA adduct

TYPE OF TEST :: Unscheduled DNA synthesis

MUTATION DATA

TYPE OF TEST :: Sister chromatid exchange

TEST SYSTEM :: Rodent - hamster Ovary

REFERENCE :: EMMUEG Environmental and Molecular Mutagenesis. (Alan R. Liss, Inc., 41 E. 11th St., New York, NY 10003) V.10- 1987- Volume(issue)/page/year: 10(Suppl 10),1,1987 *** REVIEWS *** ACGIH TLV-TWA 11 mg/m3 (2 ppm) (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: TLV/BEI,1997 IARC Cancer Review:Animal Limited 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: 65,409,1996 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: 65,409,1996 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: 65,409,1996 *** U.S. STANDARDS AND REGULATIONS *** OSHA PEL (Gen Indu):8H TWA 5 ppm (30 mg/m3) (skin) 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 5 ppm (30 mg/m3) (skin) 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 5 ppm (30 mg/m3) (skin) 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 5 ppm (30 mg/m3) (skin) 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-AUSTRALIA:TWA 2 ppm (11 mg/m3);Skin JAN 1993 OEL-BELGIUM:TWA 2 ppm (11 mg/m3);Skin JAN 1993 OEL-DENMARK:TWA 2 ppm (12 mg/m3);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 o-NITROTOLUENE-air:10H TWA 2 ppm (Sk) 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 - 81910 No. of Facilities: 20 (estimated) No. of Industries: 2 No. of Occupations: 2 No. of Employees: 285 (estimated)

毒理学数据：

1.急性毒性^[14]

LD50：891mg/kg（大鼠经口）

LC50：790mg/m³（大鼠吸入）

2.刺激性 暂无资料

生态数据：

1.生态毒性^[15]

LC50：65mg/L（96h）（斑马鱼）；29mg/L（48h）（高体雅罗鱼）；88mg/L（48h）（青鳉）；37.1mg/L（96h）（黑头呆鱼）；8.8mg/L（48h）（水蚤）

IC50：3.1~28mg/L（72h）（藻类）

2.生物降解性^[16] MITI-I测试，初始浓度100ppm，污泥浓度30ppm，2周后降解0.5%。

3.非生物降解性 暂无资料

武汉吉鑫益邦生物科技有限公司

2-硝基甲苯

联系人：周美玲
电话：027-59768650
手机：15629090339

Cas号：88-72-2
包装：1kg,25kg,200kg,400kg,500kg
纯度：0-99%
价格：洽谈

2-硝基甲苯

2-硝基甲苯制备方法及用途