2,4-二氨基甲苯

2,4-二氨基甲苯用途

【用途一】
用于制取TDI、硫化染料、碱性染料、分散染料、医药中间体及其他有机合成的中间体
【用途二】
有机合成中间体。用于生产甲苯二异氰酸酯，染料毛皮黑DB、硫化黄棕5G、硫化黄棕6G、硫化红棕B3R等。制成的染料可使皮毛、头发直接氧化成黑色。
【用途三】
是有机合成原料之一，可制取甲苯二异氰酸酯。也用作染料中间体、毛发染黑

2,4-二氨基甲苯名称

[ CAS 号 ]:
95-80-7

[ 中文名 ]:
2,4-二氨基甲苯

[ 英文名 ]:
2,4-Diaminotoluene

[中文别名 ]:

[英文别名 ]:

1,3-Benzenediamine, 4-methyl-
4-Methylbenzene-1,3-diamine
2,4-TDA
tertralg
2,4-TOLUENEDIAMINE
4-Methyl-1,3-benzenediamine
2,4-diamino-toluene
Fouramine
EINECS 202-453-1
Toluene-2,4-diamine

2,4-二氨基甲苯物理化学性质

[ 密度 ]:
1.1±0.1 g/cm3

[ 沸点 ]:
292.0±0.0 °C at 760 mmHg

[ 熔点 ]:
97-99 °C(lit.)

[ 分子式 ]:
C₇H₁₀N₂

[ 分子量 ]:
122.168

[ 闪点 ]:
149.5±21.3 °C

[ 精确质量 ]:
122.084396

[ PSA ]:
52.04000

[ LogP ]:
0.15

[ 外观性状 ]:
无色晶体

[ 蒸汽压 ]:
0.0±0.6 mmHg at 25°C

[ 折射率 ]:
1.636

[ 储存条件 ]:
库房通风低温干燥,与氧化剂、食品添加剂、酸类分开存放

[ 水溶解性 ]:
50 g/l (25 ºC)

2,4-二氨基甲苯MSDS

2,4-二氨基甲苯毒性和生态

CHEMICAL IDENTIFICATION

RTECS NUMBER :: XS9625000

CHEMICAL NAME :: Toluene-2,4-diamine

CAS REGISTRY NUMBER :: 95-80-7

BEILSTEIN REFERENCE NO. :: 2205839

LAST UPDATED :: 199712

DATA ITEMS CITED :: 64

MOLECULAR FORMULA :: C7-H10-N2

MOLECULAR WEIGHT :: 122.19

WISWESSER LINE NOTATION :: ZR CZ D1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: Standard Draize test

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - rabbit

TYPE OF TEST :: Standard Draize test

ROUTE OF EXPOSURE :: Administration into the eye

SPECIES OBSERVED :: Rodent - rabbit

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

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 325 mg/kg

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

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 350 mg/kg

TOXIC EFFECTS :: Behavioral - somnolence (general depressed activity) Cardiac - pulse rate Lungs, Thorax, or Respiration - respiratory stimulation

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

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 480 mg/kg

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

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Mammal - dog

DOSE/DURATION :: 200 mg/kg

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

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: 400 mg/kg

TOXIC EFFECTS :: Brain and Coverings - other degenerative changes Behavioral - convulsions or effect on seizure threshold Lungs, Thorax, or Respiration - respiratory stimulation

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 2100 mg/kg/90W-C

TOXIC EFFECTS :: Tumorigenic - Carcinogenic by RTECS criteria Liver - tumors Skin and Appendages - tumors

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 8050 mg/kg/101W-C

TOXIC EFFECTS :: Tumorigenic - Carcinogenic by RTECS criteria Liver - tumors Blood - lymphoma, including Hodgkin's disease

TYPE OF TEST :: TD - Toxic dose (other than lowest)

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 17 gm/kg/2Y-C

TOXIC EFFECTS :: Tumorigenic - Carcinogenic by RTECS criteria Liver - tumors Blood - lymphoma, including Hodgkin's disease

TYPE OF TEST :: TD - Toxic dose (other than lowest)

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 5030 mg/kg/84W-C

TOXIC EFFECTS :: Tumorigenic - Carcinogenic by RTECS criteria Liver - tumors Blood - lymphoma, including Hodgkin's disease

TYPE OF TEST :: TD - Toxic dose (other than lowest)

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 9000 mg/kg/36W-C

TOXIC EFFECTS :: Tumorigenic - Carcinogenic by RTECS criteria Liver - tumors

TYPE OF TEST :: TD - Toxic dose (other than lowest)

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 8400 mg/kg/2Y-C

TOXIC EFFECTS :: Tumorigenic - Carcinogenic by RTECS criteria Liver - tumors

TYPE OF TEST :: TD - Toxic dose (other than lowest)

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 16800 mg/kg/2Y-C

TOXIC EFFECTS :: Tumorigenic - Carcinogenic by RTECS criteria Liver - tumors

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

DOSE :: 1260 mg/kg

SEX/DURATION :: male 10 week(s) pre-mating

TOXIC EFFECTS :: Reproductive - Fertility - mating performance (e.g. # sperm positive females per # females mated; # copulations per # estrus cycles)

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

DOSE :: 1260 mg/kg

SEX/DURATION :: male 10 week(s) pre-mating

TOXIC EFFECTS :: Reproductive - Paternal Effects - spermatogenesis (incl. genetic material, sperm morphology, motility, and count) Reproductive - Paternal Effects - prostate, seminal vesicle, Cowper's gland, accessory glands

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

DOSE :: 210 mg/kg

SEX/DURATION :: male 1 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 :: 1200 mg/kg

SEX/DURATION :: female 6-13 day(s) after conception

TOXIC EFFECTS :: Reproductive - Fertility - litter size (e.g. # fetuses per litter; measured before birth) Reproductive - Effects on Newborn - live birth index (measured after birth)

TYPE OF TEST :: Sex chromosome loss and nondisjunction

TYPE OF TEST :: Sex chromosome loss and nondisjunction

TYPE OF TEST :: Micronucleus test

TYPE OF TEST :: DNA adduct

TYPE OF TEST :: DNA damage

TYPE OF TEST :: Unscheduled DNA synthesis

TYPE OF TEST :: DNA inhibition

TYPE OF TEST :: Sister chromatid exchange

MUTATION DATA

TYPE OF TEST :: Mutation in mammalian somatic cells

TEST SYSTEM :: Rodent - hamster Ovary

REFERENCE :: MUREAV Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE Amsterdam, Netherlands) V.1- 1964- Volume(issue)/page/year: 135,115,1984 *** REVIEWS *** IARC Cancer Review:Animal Sufficient 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: 16,83,1978 IARC Cancer Review:Human No Adequate Data 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: 16,83,1978 IARC Cancer Review:Group 2B IMSUDL IARC Monographs, Supplement. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210) No.1- 1979- Volume(issue)/page/year: 7,56,1987 *** OCCUPATIONAL EXPOSURE LIMITS *** OEL-FINLAND;Carcinogen JAN 1993 OEL-GERMANY;Carcinogen JAN 1993 OEL-RUSSIA:STEL 2 mg/m3;Skin JAN 1993 OEL-SWEDEN;Carcinogen JAN 1993 OEL-SWITZERLAND;Carcinogen JAN 1993 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH RECOMMENDED EXPOSURE LEVEL (REL) : NIOSH REL TO TOLUENEDIAMINE-air:CA lowest feasible concentration 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 : NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - X5386 No. of Facilities: 130 (estimated) No. of Industries: 6 No. of Occupations: 15 No. of Employees: 8511 (estimated) No. of Female Employees: 396 (estimated)

2,4-二氨基甲苯安全信息

[ 符号 ]:

GHS06, GHS08, GHS09

[ 信号词 ]:
Danger

[ 危害声明 ]:
H301-H312-H317-H341-H350-H361f-H373-H411

[ 警示性声明 ]:
P201-P273-P280-P301 + P310-P308 + P313

[ 个人防护装备 ]:
Eyeshields;Faceshields;full-face particle respirator type N100 (US);Gloves;respirator cartridge type N100 (US);type P1 (EN143) respirator filter;type P3 (EN 143) respirator cartridges

[ 危害码 (欧洲) ]:
T:Toxic

[ 风险声明 (欧洲) ]:
R21;R25;R36;R43;R45;R51/53

[ 安全声明 (欧洲) ]:
S53-S45-S61

[ 危险品运输编码 ]:
UN 1709 6.1/PG 3

[ WGK德国 ]:
3

[ RTECS号 ]:
XS9625000

[ 包装等级 ]:
III

[ 危险类别 ]:
6.1(b)

[ 海关编码 ]:
29331990

2,4-二氨基甲苯合成路线

2,4-二氨基甲苯上下游产品

2,4-二氨基甲苯上游产品

2,4-二氨基甲苯下游产品

2,4-二氨基甲苯制备

由对硝基甲苯用混酸硝化得2,4-二硝基甲苯，然后用铁粉还原得粗品，再经浓缩、蒸馏得成品。生产工艺如下：（1）硝化将熔化的对硝基甲苯（100%，643.9kg)小心送入硝化釜中（釜中预先放有废酸94.7kg，废酸中硫酸含量约77%。第一次硝化无废酸，可用相当浓度的硫酸代替），搅拌并使釜内温度冷却至（55±2）℃然后细流注入混酸316.2kg（混酸组成：硝酸31.75%，硫酸64.85%，水3.4%。脱水值=5）。第一阶段加入一半混酸，加料温度52-56℃；第二阶段加佘下的一半混酸，温度自54℃逐渐提升到70℃，混酸加完后控制温度在（70±2）℃。加混酸时间视反应温度而定，一般约6-7h。混酸加毕，升温到75℃，保温搅拌2.25h测定终点，以凝固点达到67℃以上为合格。在搅拌下细心地徐徐加入冷水70L进行稀释，温度控制在75-77℃，水加完后搅拌15min。停止搅拌，静置0.5h，然后插入塑料管直至釜底，冷却至室温，在冷却过程中，请注意凝结，在将要凝结成固体时，要小心不断地转动塑料管并勿使液体搅浑。待反应物全部凝固。拔出塑料管，放去废酸，加热使反应物重新熔化，温度不超过80℃。熔毕，停止加热，搅拌3-5min后，静置30min，冷却，并插入塑料管，如上法，待完全凝结后，拔去塑料管，放尽废酸，再加热熔化，温度不超过80℃反应物为黄色油状物，在75℃保温。于精制釜内放水1300L，升温至68-70℃，在搅拌下细流注入黄色油状物，随时加入液碱进行中和，严格控制PH=5-6。使反应物温度在67-68℃，即喷入冷水进行降温，有黄色针状结晶出，继续搅拌冷却到35℃左右，放料过滤，滤饼用喷淋冷水洗涤，得黄色结晶的2，4-二硝基甲苯。（2）还原于还原釜中加入水1300L，在搅拌下先加入铁粉500kg，加热到70℃后，再加30%盐酸40kg，升温到90-95℃，取样滴于滤纸上，润圈与5%硫化碱液相交处有黑色出现，即可开始分批加入二硝基甲苯（100%364kg），使反应剧烈进行，保持100-102℃的沸腾状态。加料时要随时检查，取样滴于滤纸上无黄色润留，与5%硫化碱液相交处显黑色，与石蕊试纸应显红色。待二硝基甲苯加入总量的75%后，再测试终点。危重再将铁粉100kg同料交叉加入，全部加料时间为1-1.5h，始终保持沸腾，料加完再搅拌0.5h，以反应液在滤纸上润圈不显黄色为终点。还原终点到后，停止加热，降温到85-90℃，小心加入用石灰30kg及水调成的石灰浆，使PH值为8-9，然后加入50%硫化碱5kg，继续搅拌15min，以料液在滤纸上润圈与5%硫化碱液相交无黑色痕迹为中和终点。中和毕，再加入亚硫酸钠2kg，搅拌15min，静置0.5h，使铁泥充分沉淀。 (3)过滤、浓缩铁泥沉降后，将上层清液吸入贮槽中，残留在还原釜中的铁泥加水1000-1200L，搅拌升温到95℃静置0.5h，然后将上层洗涤清液吸入贮槽中，如上法反复进行三次洗涤，洗液均合并还原母液中进行吸滤；吸滤后，料液在真空度80kg下蒸发浓缩，约6h完成。（4）减压蒸馏将浓缩液吸到蒸馏釜中，在真空度74.7-90.7kpa，夹层油温180-210℃，顶温50-60℃，搅拌下，进行脱水。当真空度上升到94.7-97.3kpa，顶温为190-200℃，夹层油温为280-290℃下进行蒸馏，随着蒸馏釜内物料减少，真空逐渐上升，顶温逐渐下降到170-180℃，油温提高到300-320℃左右，此时可认为蒸馏已到终点。每批操作得成品约500kg。原料消耗定额：对硝基甲苯1600kg/t、硫酸（98%）1616kg/t、硝酸（98%）760kg/t、铁粉（90%）2700kg/t。

2,4-二氨基甲苯海关

[ 海关编码 ]: 2921519020

[ 中文概述 ]:
2921519020 2,4-二氨基甲苯。监管条件:X(有毒化学品环境管理放行通知单)。增值税率:17.0%。退税率:17.0%。最低关税:6.5%。普通关税:30.0%

[ 申报要素 ]: 品名, 成分含量, 用途

[ 监管条件 ]: X.有毒化学品环境管理放行通知单

[ Summary ]:
2921519020 4-methylbenzene-1,3-diamine。supervision conditions:x(environment control release notice for poisonous chemicals)。VAT:17.0%。tax rebate rate:17.0%。MFN tarrif:6.5%。general tariff:30.0%

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