间甲酚_MSDS_用途_密度_间甲酚CAS号【108-39-4】

主要用于农药、医药、香料、树脂增塑剂、电影胶片、抗氧剂、和试剂等一切需使用间甲酚化学工业行业。

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[ 密度 ]:
1.0±0.1 g/cm3

[ 沸点 ]:
202.3±0.0 °C at 760 mmHg

[ 熔点 ]:
8-10 °C(lit.)

[ 分子式 ]:
C₇H₈O

[ 分子量 ]:
108.138

[ 闪点 ]:
86.1±0.0 °C

[ 精确质量 ]:
108.057518

[ PSA ]:
20.23000

[ LogP ]:
1.94

[ 外观性状 ]:
透明至略琥珀色液体

[ 蒸汽密度 ]:
3.72 (vs air)

[ 蒸汽压 ]:
0.2±0.4 mmHg at 25°C

[ 折射率 ]:
1.546

[ 储存条件 ]:
库房通风低温干燥,与氧化剂分开存放

[ 稳定性 ]:
Stable. Combustible. Incompatible with strong oxidizing agents, strong bases, strong acids, aluminium, aluminium alloys. Air and light sensitive. Hygroscopic.

[ 水溶解性 ]:
20 g/L (20 ºC)

CHEMICAL IDENTIFICATION

RTECS NUMBER :: GO6125000

CHEMICAL NAME :: m-Cresol

CAS REGISTRY NUMBER :: 108-39-4

LAST UPDATED :: 199712

DATA ITEMS CITED :: 47

MOLECULAR FORMULA :: C7-H8-O

MOLECULAR WEIGHT :: 108.15

WISWESSER LINE NOTATION :: QR C1

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 :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 242 mg/kg

TOXIC EFFECTS :: Behavioral - somnolence (general depressed activity) Behavioral - convulsions or effect on seizure threshold Gastrointestinal - peritonitis

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

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: >710 mg/m3/1H

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 - rat

DOSE/DURATION :: 1100 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 :: 900 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 :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 828 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 :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 168 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 - mouse

DOSE/DURATION :: 450 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 :: Unreported

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 600 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 :: Intravenous

SPECIES OBSERVED :: Mammal - dog

DOSE/DURATION :: 150 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 - cat

DOSE/DURATION :: 180 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 - rabbit

DOSE/DURATION :: 1400 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 :: 2050 mg/kg

TOXIC EFFECTS :: Sense Organs and Special Senses (Eye) - lacrimation Behavioral - convulsions or effect on seizure threshold Gastrointestinal - changes in structure or function of salivary glands

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: 500 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 :: Intravenous

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: 280 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 :: Intraperitoneal

SPECIES OBSERVED :: Rodent - guinea pig

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 :: Subcutaneous

SPECIES OBSERVED :: Rodent - guinea pig

DOSE/DURATION :: 300 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 :: Amphibian - frog

DOSE/DURATION :: 250 mg/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 :: 42 gm/kg/28D-C

TOXIC EFFECTS :: Brain and Coverings - changes in brain weight 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 :: 101 gm/kg/28D-C

TOXIC EFFECTS :: Brain and Coverings - changes in brain weight Kidney, Ureter, Bladder - changes in bladder weight Nutritional and Gross Metabolic - weight loss or decreased weight gain

TYPE OF TEST :: TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: 2 mg/m3/24H/6W-I

TOXIC EFFECTS :: Kidney, Ureter, Bladder - other changes Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - other hydrolases Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - other Enzymes

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 2280 mg/kg/20W-I

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

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Subcutaneous

DOSE :: 134 gm/kg

SEX/DURATION :: female 6-18 day(s) after conception

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

MUTATION DATA

TYPE OF TEST :: DNA inhibition

TEST SYSTEM :: Human HeLa cell

REFERENCE :: BECTA6 Bulletin of Environmental Contamination and Toxicology. (Springer-Verlag New York, Inc., Service Center, 44 Hartz Way, Secaucus, NJ 07094) V.1- 1966- Volume(issue)/page/year: 32,220,1984 *** REVIEWS *** ACGIH TLV-TWA 22 mg/m3 (5 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 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 *** 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 MSHA STANDARD-air:TWA 5 ppm (22 mg/m3) 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: 3,61,1971 OSHA PEL (Gen Indu):8H TWA 5 ppm (22 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 (22 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 (22 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 (22 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-DENMARK:TWA 5 ppm (22 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 m-CRESOL-air:10H TWA 2.3 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 - 84497 No. of Facilities: 1317 (estimated) No. of Industries: 16 No. of Occupations: 20 No. of Employees: 11161 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 84497 No. of Facilities: 144 (estimated) No. of Industries: 5 No. of Occupations: 11 No. of Employees: 5615 (estimated) No. of Female Employees: 1174 (estimated)

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[ 符号 ]:

GHS05, GHS06

[ 信号词 ]:
Danger

[ 危害声明 ]:
H301 + H311-H314

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

[ 个人防护装备 ]:
Faceshields;full-face respirator (US);Gloves;Goggles;multi-purpose combination respirator cartridge (US);type ABEK (EN14387) respirator filter

[ 危害码 (欧洲) ]:
T:Toxic

[ 风险声明 (欧洲) ]:
R24/25;R34

[ 安全声明 (欧洲) ]:
S36/37/39-S45-S36/37

[ 危险品运输编码 ]:
UN 2076 6.1/PG 2

[ WGK德国 ]:
1

[ RTECS号 ]:
GO6125000

[ 包装等级 ]:
II

[ 危险类别 ]:
6.1

[ 海关编码 ]:
2907121100

间甲酚上游产品

间甲酚下游产品

在20世纪50年代以前，间甲酚的主要来源是从炼焦副产煤焦油和石油精炼碱渣中回收，但回收量很小，不能满足工业需要。以后发展了间甲酚的合成法，其工艺路线有两条：一是以甲苯为原料，经磺化碱熔合成；另一种是异丙基甲苯法，联产丙酮。20世纪90年代初，我国由美国引进这一技术，在北京燕山建立装置投产。这套装置除生产1.2万吨/年主产品间甲酚外，还联产0.99万吨丙酮。与其他方法相比，这套装置生产的产品质量高，产品比例可以自由调节。
1.甲苯磺化碱熔法
由甲苯和硫酸(98%)进行反应(100～110℃)，然后升温至150℃，继续加入甲苯，接着升温至190℃进行异构化，最后碱熔得甲酚。其组成如下：苯酚3.1%，对甲苯酚37.4%，邻甲苯酚4.7%，间甲苯酚54.8%。
上述反应所得的间、对甲酚用高效蒸馏塔重蒸，切割出201～208℃的窄馏分，即得到间、对甲酚等的混合物；将此物料用苯稀释后加入尿素，在-10℃下反应1h，离心抽滤，用-10℃的苯或甲苯洗涤2次，得到间甲酚-尿素的白色固体配合物。然后在15～80℃用甲苯水解配合物，取上面液层，在精馏塔内于常压下蒸出甲苯和水后，在真空度0.1 MPa下切取91～104℃馏分，即得含量为95%以上的间甲酚。本法是最早的工业化方法，工艺路线成熟，国外早期采用此法生产。但由于此法耗用大量酸碱，因此三废量大，设备腐蚀严重，且工艺过程中需多次处理固体物料，使生产连续化较困难，而且质量差，在技术、经济上不如异丙基甲苯法优越。

2.异丙基甲苯法
以甲苯为原料，在催化剂存在下用丙烯进行烃化反应，再经氧化、酸解而得。反应方程式分述见图。
烷基化
烷基化以三氯化铝为催化剂(用量为1%～2%)，反应温度85～115℃，丙烯/甲苯=0.4～0.6(mol)，在此条件下可以获得收率较高的间位异构体。
氧化
异丙基甲苯氧化所用氧化剂有空气、纯氧或过氧化氢，一般以空气氧化比较经济。氧化反应在引发剂(过氧化苯甲酰或偶氮二异丁腈)存在下进行，加入量为异丙基甲苯质量的1%左右，反应温度138～140℃，反应时间130～150 min，通气量按理论过量5%；反应液pH值控制在5左右，氧化深度控制15%，在此条件下总的异丙基甲苯氢过氧化物约为85%～90%。
分解
异丙基甲苯过氧化氢在硫酸存在下分解为甲酚和丙酮。此法合成的混甲酚，间、对二异构体大致为6:4，经酸分解后的分解液组成大致为丙酮34.2%，间、对混甲酚30.7%，异丙基甲苯6.9%，α-甲基苯乙烯3.9%，过氧化物4.4%。
分离精制邻甲酚与间、对甲酚沸点差较大，选择适当设备即可分离，但间甲酚(202.9℃)和对甲酚(202.5℃)沸点很接近，不能采用分馏法分离。采用异丁烯烷基化法可以得到良好效果，其工艺过程为：将混甲酚在催化剂存在下用异丁烯进行烃化，得到二叔丁基间甲酚和二叔丁基对甲酚混合物。
甲酚叔丁基化所得产物是一种复杂的混合物，其中除含有单叔丁基甲酚异构体、二叔丁基异构体外，尚有未反应的甲酚和异丁烯聚合物，利用其沸点差异，可将其蒸馏分离。分离后所得的4,6-二叔丁基间甲酚，在催化剂存在下，经加热至202℃，可脱烃分解为间甲酚和异丁烯，所得产品间甲酚含量可达98%，以上，回收率达95%左右。异丁烯回收率在95%以上，可以循环套用。用此法分离间甲酚，还可联产2,6-二叔丁基对甲酚抗氧剂。

3.间甲苯胺经重氮化、水解即可得到间甲酚，然后再经水蒸气蒸馏，乙醚萃取，减压蒸馏等工序进行精制。其反应方程式类同邻甲酚。

4.异丙基甲苯法　以甲苯为原料，在催化剂存在下，用丙烯进行烃化反应，再经氧化、酸解而得，其主要反应式如下。

烷基化反应

烷基化以三氯化铝为催化剂（用量为1%～2%），反应温度85～115℃，丙烯/甲苯＝0.4～0.6（mol），在此条件下可以获得收率较高的间位异构体。

氧化反应

异丙基甲苯氧化所用氧化剂有空气、纯氧和过氧化氢。一般以空气氧化比较经济。氧化反应在引发剂（过氧化苯甲酰或偶氮二异丁腈）存在下进行，加入量为异丙基甲苯质量的1%左右，反应温度138～140℃，反应时间130～150min，通气量按理论过量5%；反应液pH值控制在5左右，氧化深度控制15%，在此条件下总的异丙基甲苯氢过氧化物收率约为85%～90%。

分解反应

异丙基甲苯过氧化氢在硫酸存在下，分解为甲酚和丙酮。此法合成的混甲酚中，间、对二异构体的比例大致为6∶4。经酸分解后的分解液的组成大致为；丙酮34.2%，间、对混甲酚80.7%，异丙基甲苯6.9%，α-甲基苯乙烯3.9%，过氧化物4.4%。

分离精制　邻甲酚与间、对甲酚沸点差较大，选择适当设备即可分离，但间甲酚（202.9℃）和对甲酚（202.5℃）沸点很接近，不能采用分馏法分离。采用异丁烯烷基化法，可以得到良好效果。其工艺过程为：将混甲酚在催化剂存在下，用异丁烯进行烃化，得到二叔丁基间甲酚和二叔丁基对甲酚混物，其反应式如下

甲酚叔丁基化所得产物是一种复杂的混合物，其中除含有单叔丁基甲酚异构体、二叔丁基异构体外，尚有未反应的甲酚和异丁烯聚合物，利用其沸点差异，可将其蒸馏分离。分离后所得的4,6-二叔丁基间甲酚，在催化剂存在下，经加热至202℃，可脱烃分解为间甲酚和异丁烯，所得产品间甲酚含量可达98%以上，回收率达95%左右。异丁烯回收率在95%以上，可以循环套用。用此法分离间甲酚，还可联产2,6-二叔丁基对甲酚抗氧剂。

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[ 海关编码 ]: 2907121100

[ 中文概述 ]:
HS: 2907121100. 间甲酚. 增值税率:17.0%. 退税率:9.0%. 监管条件:无. 最低关税:5.5%. 普通关税:30.0%

[ 申报要素 ]: 品名, 成分含量, 用途

[ Summary ]:
HS: 2907121100. m-cresol. VAT:17.0%. tax rebate rate:9.0%. supervision conditions:None. MFN tarrif:5.5%. general tariff:30.0%

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公司名：上海吉至生化科技有限公司

区域：上海市奉贤区

价格：
￥78.0/500g

联系人：刘佳

产品详情：间甲酚

公司名：上海源溪生物科技有限公司

区域：上海市浦东新区

价格：
￥需询单/1g

联系人：赖经理

产品详情：Metacresol

公司名：上海阿拉丁生化科技股份有限公司

区域：上海市浦东新区

价格：
￥需询单/1mg ￥需询单/1g ￥需询单/1g ￥需询单/1g

联系人：阿拉丁李高志

产品详情：间甲酚

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间甲酚物理化学性质

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详细MSDS(安全技术说明书)

间甲酚毒性和生态

CHEMICAL IDENTIFICATION

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

MUTATION DATA

间甲酚安全信息

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