N,N-二甲基苯胺
N,N-二甲基苯胺用途
生产盐基性染料(三苯基甲烷染料等)和碱性染料的基本原料之一，主要品种有碱性嫩黄，碱性紫5BN，碱性品绿，碱性湖蓝，艳红5GN，艳蓝等。N,N-二甲基苯胺在医药工业中用于制造头孢菌素V，磺胺-b-甲氧嘧啶，磺胺邻二甲氧嘧啶，氟孢嘧啶等，在香料工业中用于制造香兰素等。
【用途二】
用作分析试剂
【用途三】
用于制造香料、农药、染料、炸药等
【用途四】
该品为重要的染料中间体。可用于制备碱性嫩黄、碱性紫5BN、碱性品绿、碱性湖蓝BB、碱性艳蓝R、阳离子红2BL、艳红5GN、紫3BL、艳蓝等。在医药工业中，该品可用于制造头孢菌素V、磺胺-b-甲氧嘧啶、磺胺邻二甲氧嘧啶、氟胞嘧啶等。在香料工业中可用来生产香兰素。还可作为溶剂、橡胶硫化促进剂、炸药及某些有机中间体的原料。
【用途五】
检定甲醇、甲基呋喃甲醛、过氧化氢、硝酸盐、乙醇、甲醛和叔胺，比色测定亚硝酸盐等，溶剂，制造香荚兰素、甲基紫、米蚩酮和其他染料。亦用于对称和不对称光导体新工艺。
N,N-二甲基苯胺名称
[ CAS 号 ]:
121-69-7
[ 中文名 ]:
N,N-二甲基苯胺
[ 英文名 ]:
N,N-Dimethylaniline
[中文别名 ]:
[英文别名 ]:
- N,N-Dimethylbenzeneamine
- aniline, N,N-dimethyl-
- dimethylphenylamine
- dimethylaniline
- Benzenamine,N,N-dimethyl
- N,N-Dimethylbenzenamine
- N,N-Dimethylphenylamine
- MFCD00008304
- N,N-Dimethylaniline
- Aniline,N,N-dimethyl
N,N-二甲基苯胺物理化学性质
[ 密度 ]:
1.0±0.1 g/cm3
[ 沸点 ]:
193.5±0.0 °C at 760 mmHg
[ 熔点 ]:
1.5-2.5 °C(lit.)
[ 分子式 ]:
C8H11N
[ 分子量 ]:
121.180
[ 闪点 ]:
62.8±0.0 °C
[ 精确质量 ]:
121.089149
[ PSA ]:
3.24000
[ LogP ]:
2.33
[ 外观性状 ]:
淡黄色至棕色油性液体,像胺的气味
[ 蒸汽密度 ]:
3 (vs air)
[ 蒸汽压 ]:
0.5±0.3 mmHg at 25°C
[ 折射率 ]:
1.550
[ 储存条件 ]:
库房通风低温干燥,与酸类、氧化剂、食品添加剂分开存放
[ 稳定性 ]:
Stable. Incompatible with strong oxidizing agents, strong acids, acid chlorides, acid anhydrides, chloroformates, halogens. Combustible.
[ 水溶解性 ]:
1 g/L (20 ºC)
N,N-二甲基苯胺MSDS
N,N-二甲基苯胺毒性和生态
CHEMICAL IDENTIFICATION
- RTECS NUMBER :
- BX4725000
- CHEMICAL NAME :
- Aniline, N,N-dimethyl-
- CAS REGISTRY NUMBER :
- 121-69-7
- LAST UPDATED :
- 199712
- DATA ITEMS CITED :
- 58
- MOLECULAR FORMULA :
- C8-H11-N
- MOLECULAR WEIGHT :
- 121.20
- WISWESSER LINE NOTATION :
- 1N1&R
HEALTH HAZARD DATA
ACUTE TOXICITY DATA
- TYPE OF TEST :
- Open irritation test
- ROUTE OF EXPOSURE :
- Administration onto the skin
- SPECIES OBSERVED :
- Rodent - rabbit
- 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 :
- LDLo - Lowest published lethal dose
- ROUTE OF EXPOSURE :
- Oral
- SPECIES OBSERVED :
- Human
- DOSE/DURATION :
- 50 mg/kg
- TOXIC EFFECTS :
- Gastrointestinal - nausea or vomiting Gastrointestinal - other changes
- TYPE OF TEST :
- LD50 - Lethal dose, 50 percent kill
- ROUTE OF EXPOSURE :
- Oral
- SPECIES OBSERVED :
- Rodent - rat
- DOSE/DURATION :
- 1410 uL/kg
- TOXIC EFFECTS :
- Details of toxic effects not reported other than lethal dose value
- TYPE OF TEST :
- LCLo - Lowest published lethal concentration
- ROUTE OF EXPOSURE :
- Inhalation
- SPECIES OBSERVED :
- Rodent - rat
- DOSE/DURATION :
- 250 mg/m3/4H
- TOXIC EFFECTS :
- Behavioral - somnolence (general depressed activity) Behavioral - excitement
- TYPE OF TEST :
- LDLo - Lowest published lethal dose
- ROUTE OF EXPOSURE :
- Subcutaneous
- SPECIES OBSERVED :
- Rodent - rat
- DOSE/DURATION :
- 100 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 :
- Oral
- SPECIES OBSERVED :
- Rodent - mouse
- DOSE/DURATION :
- 350 mg/kg
- TOXIC EFFECTS :
- Details of toxic effects not reported other than lethal dose value
- TYPE OF TEST :
- LD50 - Lethal dose, 50 percent kill
- ROUTE OF EXPOSURE :
- Administration onto the skin
- SPECIES OBSERVED :
- Rodent - rabbit
- DOSE/DURATION :
- 1770 uL/kg
- TOXIC EFFECTS :
- Details of toxic effects not reported other than lethal dose value
- TYPE OF TEST :
- TDLo - Lowest published toxic dose
- ROUTE OF EXPOSURE :
- Oral
- SPECIES OBSERVED :
- Rodent - rat
- DOSE/DURATION :
- 32500 mg/kg/13W-I
- TOXIC EFFECTS :
- Kidney, Ureter, Bladder - other changes Blood - changes in spleen Nutritional and Gross Metabolic - weight loss or decreased weight gain
- TYPE OF TEST :
- TDLo - Lowest published toxic dose
- ROUTE OF EXPOSURE :
- Oral
- SPECIES OBSERVED :
- Rodent - rat
- DOSE/DURATION :
- 16250 mg/kg/13W-I
- TOXIC EFFECTS :
- Liver - other changes Blood - changes in bone marrow (not otherwise specified) Blood - changes in spleen
- TYPE OF TEST :
- TCLo - Lowest published toxic concentration
- ROUTE OF EXPOSURE :
- Inhalation
- SPECIES OBSERVED :
- Rodent - rat
- DOSE/DURATION :
- 10700 ug/m3/5H/17W-I
- TOXIC EFFECTS :
- Blood - pigmented or nucleated red blood cells Blood - methemoglobinemia-carboxyhemoglobin Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - catalases
- TYPE OF TEST :
- TCLo - Lowest published toxic concentration
- ROUTE OF EXPOSURE :
- Inhalation
- SPECIES OBSERVED :
- Rodent - rat
- DOSE/DURATION :
- 300 ug/m3/24H/14W-C
- TOXIC EFFECTS :
- Behavioral - muscle contraction or spasticity Blood - methemoglobinemia-carboxyhemoglobin Blood - changes in erythrocyte (RBC) count
- TYPE OF TEST :
- TDLo - Lowest published toxic dose
- ROUTE OF EXPOSURE :
- Oral
- SPECIES OBSERVED :
- Rodent - mouse
- DOSE/DURATION :
- 32500 mg/kg/13W-I
- TOXIC EFFECTS :
- Blood - changes in spleen
- TYPE OF TEST :
- TDLo - Lowest published toxic dose
- ROUTE OF EXPOSURE :
- Oral
- SPECIES OBSERVED :
- Rodent - mouse
- DOSE/DURATION :
- 32500 mg/kg/13W-I
- TOXIC EFFECTS :
- Liver - other changes Kidney, Ureter, Bladder - other changes Blood - changes in spleen
- TYPE OF TEST :
- TDLo - Lowest published toxic dose
- ROUTE OF EXPOSURE :
- Oral
- SPECIES OBSERVED :
- Rodent - rat
- DOSE/DURATION :
- 15450 mg/kg/2Y-C
- TOXIC EFFECTS :
- Tumorigenic - equivocal tumorigenic agent by RTECS criteria Endocrine - tumors
- TYPE OF TEST :
- TDLo - Lowest published toxic dose
- ROUTE OF EXPOSURE :
- Oral
- SPECIES OBSERVED :
- Rodent - mouse
- DOSE/DURATION :
- 15450 mg/kg/2Y-C
- TOXIC EFFECTS :
- Tumorigenic - equivocal tumorigenic agent by RTECS criteria Endocrine - tumors
- TYPE OF TEST :
- DNA damage
- TYPE OF TEST :
- DNA damage
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: 13,60,1989 *** 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 50 mg/m3 (10 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 ACGIH TLV-TWA 25 mg/m3 (5 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 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: 57,337,1993 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: 57,337,1993 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: 57,337,1993 *** U.S. STANDARDS AND REGULATIONS *** OSHA PEL (Gen Indu):8H TWA 5 ppm (25 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 (25 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 (25 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 (25 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 5 ppm (25 mg/m3);STEL 10 ppm (50 mg/m3);Skin JAN 1993 OEL-BELGIUM:TWA 5 ppm (25 mg/m3);STEL 10 ppm (50 mg/m3);Skin JAN 1993 OEL-DENMARK:TWA 5 ppm (25 mg/m3);Skin JAN 1993 OEL-FINLAND:TWA 5 ppm (25 mg/m3);STEL 10 ppm (50 mg/m3);Skin JAN 1993 OEL-FRANCE:TWA 5 ppm (25 mg/m3);Skin JAN 1993 OEL-GERMANY:TWA 5 ppm (25 mg/m3) JAN 1993 OEL-HUNGARY:TWA 5 mg/m3;STEL 10 mg/m3;Skin JAN 1993 OEL-THE NETHERLANDS:TWA 5 ppm (25 mg/m3);Skin JAN 1993 OEL-THE PHILIPPINES:TWA 5 ppm (25 mg/m3) JAN 1993 OEL-POLAND:TWA 5 mg/m3 JAN 1993 OEL-RUSSIA:STEL 0.2 mg/m3;Skin JAN 1993 OEL-SWITZERLAND:TWA 5 ppm (25 mg/m3);STEL 10 ppm (50 mg/m3);Skin JAN 1993 OEL-UNITED KINGDOM:TWA 5 ppm (25 mg/m3);STEL 10 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 DIMETHYLANILINE-air:10H TWA 5 ppm (Sk);STEL 10 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 - 26335 No. of Facilities: 100 (estimated) No. of Industries: 4 No. of Occupations: 10 No. of Employees: 2456 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 26335 No. of Facilities: 1428 (estimated) No. of Industries: 15 No. of Occupations: 27 No. of Employees: 30480 (estimated) No. of Female Employees: 7448 (estimated)
N,N-二甲基苯胺安全信息
[ 符号 ]:
GHS06, GHS08, GHS09
[ 信号词 ]:
Danger
[ 危害声明 ]:
H301 + H311 + H331-H351-H411
[ 警示性声明 ]:
P261-P273-P280-P301 + P310 + P330-P302 + P352 + P312-P403 + P233
[ 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) ]:
T:Toxic
[ 风险声明 (欧洲) ]:
R23/24/25;R40;R51/53
[ 安全声明 (欧洲) ]:
S53-S45-S61-S36/37-S28A-S28
[ 危险品运输编码 ]:
UN 2253 6.1/PG 2
[ WGK德国 ]:
3
[ RTECS号 ]:
BX4725000
[ 包装等级 ]:
II
[ 危险类别 ]:
6.1
[ 海关编码 ]:
2921492000
N,N-二甲基苯胺合成路线
N,N-二甲基苯胺上下游产品
N,N-二甲基苯胺上游产品
N,N-二甲基苯胺下游产品
N,N-二甲基苯胺制备
1.由苯胺与甲醇在硫酸存在下，经高温高压反应而得。工艺流程：1、在反应釜内加入苯胺790kg、甲醇625kg、硫酸85kg(均铵100%计），控制温度210-215℃，压力3.1MPa，反应4h，然后泄压，物料排放至分离器，用30%氢氧化钠中和，静置，分出下层季铵盐。然后在160℃、0.7-0.9MPa下水解反应3h，所得水解产物与上层油状物合并经水洗后真空蒸馏得成品。
2、以甲醇和苯胺为原料，在甲醇过量、常压、200-250℃的条件下，通过氧化铝催化剂合成。原料消耗定额：苯胺790kg/t、甲醇625kg/t、硫酸85kg/t。实验室制备可将苯胺与磷酸三甲酯反应。
3、将苯胺和甲醇混合（n苯胺：n甲醇≈1：3），并通过往复式无脉冲计量泵按空速0.5h－1注入装有催化剂的反应器，反应流出物先进入玻璃气液分离器，分离器下部收集的液体定时取出进行色谱分析。
4、2001年南开大学和天津瑞凯科技发展有限公司联合研制了一种高效苯胺甲基化催化剂，实现了气相合成N，N-二甲基苯胺。工艺过程如下：液体苯胺与甲醇比例混合后，在汽化塔中汽化，然后进入管状反应器、空速为0.5-1.0h－1（管状反应器的固定床装有负载型纳米固体催化剂），在250-300℃、常压下连续生产。DMA收率达96%以上。
精制方法：常含有苯胺、N-甲基苯胺等杂质。精制时将N,N-二甲基苯胺溶解于40%硫酸中，进行水蒸气蒸馏。加入氢氧化钠使呈碱性。继续进行水蒸气蒸馏。馏出物分去水层，用氢氧化钾干燥。在乙酐存在下进行常压蒸馏。馏出物用水洗涤，除去微量的乙酐，用氢氧化钾，其次用氧化钡干燥，在氮气流中进行减压蒸馏。其他的精制方法有：加入10%的乙酐回流几小时，以除去伯胺和仲胺。冷却后加入过量的20%的盐酸，用乙醚萃取。盐酸层加碱使呈碱性，再用乙醚萃取，醚层用氢氧化钾干燥后在氮气流下减压蒸馏。也可以将N,N-二甲基苯胺转变成苦味酸盐，重结晶至熔点恒定后用温热的10%的氢氧化钠水溶液分解苦味酸盐。再用乙醚萃取，水洗和干燥后减压蒸馏。
5.苯胺、甲醇和硫酸按比例混合均匀，在高压釜内进行缩合反应，反应产物经泄压回收甲醇后，加碱中和、分离再经减压蒸馏即得产品。
6.苯胺与磷酸三甲酯进行甲基化反应可生成N，N-二甲基苯胺：然后用乙醚萃取，干燥蒸馏。
7.在铜-锰体系或铜-锌- 铬体系的齐格勒触媒的催化床上于280℃通入按1∶ 3.5的比例配制的苯胺和甲醇混合蒸气，可合成N,N-二甲基苯胺。得到的N,N-二甲基苯胺经54块塔板的精馏装置上收集193-195℃间馏分，装入棕色玻璃瓶内即可。为制备色谱纯N,N-二甲基苯胺，可以氮气为载气，在带有犇犅犛柱的制备气相色谱仪上注入上述精馏得到的N,N-二甲基苯胺，通过分离收集主组分峰馏分，然后装入玻璃安瓿瓶中密封即可。
N,N-二甲基苯胺海关
[ 海关编码 ]: 2921492000
[ 中文概述 ]:
2921492000 二甲基苯胺。监管条件:无。增值税率:17.0%。退税率:9.0%。最低关税:6.5%。普通关税:20.0%
[ 申报要素 ]: 品名, 成分含量, 用途
[ Summary ]:
2921492000 n,n-dimethylaniline。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。Lowest tariff:6.5%。General tariff:20.0%
N,N-二甲基苯胺文献
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...
Calculating virtual log P in the alkane/water system (log P(N)(alk)) and its derived parameters deltalog P(N)(oct-alk) and log D(pH)(alk).J. Med. Chem. 48 , 3269-79, (2005)
Growing interest in the use of both the logarithm of the partition coefficient of the neutral species in the alkane/water system (log P(N)(alk)) and the difference between log P(N)(oct) (the logarithm...
QUANTITY: An Isobaric Tag for Quantitative Glycomics.Sci. Rep. 5 , 17585, (2015)
Glycan is an important class of macromolecules that play numerous biological functions. Quantitative glycomics--analysis of glycans at global level--however, is far behind genomics and proteomics owin...
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【N,N-二甲基苯胺】化源网提供N,N-二甲基苯胺CAS号121-69-7，N,N-二甲基苯胺MSDS及其说明、性质、英文名、生产厂家、作用/用途、分子量、密度、沸点、熔点、结构式等。CAS号查询N,N-二甲基苯胺上化源网，专业又轻松。>>电脑版：N,N-二甲基苯胺
标题：N,N-二甲基苯胺_MSDS_用途_密度_CAS号【121-69-7】_化源网 地址：https://m.chemsrc.com/mip/cas/121-69-7_819651.html