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4-甲基苯乙烯

4-甲基苯乙烯用途

1.用于生产对甲基苯乙烯树脂，也可代替苯乙烯作合成橡胶单体，以对甲基苯乙烯和异丁烯为原料可以合成聚对甲基苯乙烯-聚对甲基苯乙烯三嵌段共聚物。

2.用作聚合物单体及用于制造涂料。

4-甲基苯乙烯名称

[ CAS 号 ]:
622-97-9

[ 中文名 ]:
4-甲基苯乙烯

[ 英文名 ]:
4-Methylstyrene

[中文别名 ]:

[英文别名 ]:

1-ethenyl-4-methylbenzene
EINECS 210-762-8
MFCD00008621

4-甲基苯乙烯物理化学性质

[ 密度 ]:
0.897 g/mL at 25 °C(lit.)

[ 沸点 ]:
170-175 °C(lit.)

[ 熔点 ]:
-34 °C

[ 分子式 ]:
C₉H₁₀

[ 分子量 ]:
118.17600

[ 闪点 ]:
114 °F

[ 精确质量 ]:
118.07800

[ LogP ]:
2.63800

[ 外观性状 ]:
透明无色液体

[ 蒸汽压 ]:
<1 mm Hg ( 20 °C)

[ 折射率 ]:
n20/D 1.542(lit.)

[ 储存条件 ]:
库房通风低温干燥,轻装轻卸、与氧化剂和酸类分开存放,不易久储以防聚合

[ 水溶解性 ]:
水溶性：不溶；混溶：苯,乙醇,乙醚,甲醇

4-甲基苯乙烯MSDS

4-甲基苯乙烯毒性和生态

CHEMICAL IDENTIFICATION

RTECS NUMBER :: WL5076000

CHEMICAL NAME :: Styrene, p-methyl-

CAS REGISTRY NUMBER :: 622-97-9

BEILSTEIN REFERENCE NO. :: 1209317

LAST UPDATED :: 199710

DATA ITEMS CITED :: 15

MOLECULAR FORMULA :: C9-H10

MOLECULAR WEIGHT :: 118.19

WISWESSER LINE NOTATION :: 1U1R D1

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 :: 2255 mg/kg

TOXIC EFFECTS :: Behavioral - tremor Lungs, Thorax, or Respiration - respiratory depression Gastrointestinal - other changes

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

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 2324 mg/kg

TOXIC EFFECTS :: Behavioral - tremor Lungs, Thorax, or Respiration - respiratory depression Gastrointestinal - other changes

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

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 1072 mg/kg

TOXIC EFFECTS :: Behavioral - convulsions or effect on seizure threshold Behavioral - ataxia Lungs, Thorax, or Respiration - respiratory depression

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

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 581 mg/kg

TOXIC EFFECTS :: Behavioral - convulsions or effect on seizure threshold Behavioral - ataxia Lungs, Thorax, or Respiration - respiratory depression

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

ROUTE OF EXPOSURE :: Intravenous

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 280 mg/kg

TOXIC EFFECTS :: Behavioral - tremor Lungs, Thorax, or Respiration - respiratory depression Gastrointestinal - other changes

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

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Mammal - dog

DOSE/DURATION :: >5 gm/kg

TOXIC EFFECTS :: Gastrointestinal - nausea or vomiting Gastrointestinal - changes in structure or function of salivary glands Behavioral - tremor

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

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: >5 mL/kg

TOXIC EFFECTS :: Skin and Appendages - dermatitis, other (after systemic exposure)

MUTATION DATA

TYPE OF TEST :: Sister chromatid exchange

TEST SYSTEM :: Human Lymphocyte

DOSE/DURATION :: 330 umol/L

REFERENCE :: CRNGDP Carcinogenesis (London). (Oxford Univ. Press, Pinkhill House, Southfield Road, Eynsham, Oxford OX8 1JJ, UK) V.1- 1980- Volume(issue)/page/year: 2,237,1981 *** REVIEWS *** 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: 60,373,1994 IARC Cancer Review:Animal LACK CARCINOGENICITY 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: 60,373,1994 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: 60,373,1994 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - X2573 No. of Facilities: 460 (estimated) No. of Industries: 7 No. of Occupations: 10 No. of Employees: 5274 (estimated) No. of Female Employees: 377 (estimated)

4-甲基苯乙烯安全信息

[ 符号 ]:

GHS02, GHS07, GHS08

[ 信号词 ]:
Danger

[ 危害声明 ]:
H226-H304-H315-H319-H335

[ 警示性声明 ]:
P261-P301 + P310-P305 + P351 + P338-P331

[ 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) ]:
Xn: Harmful;

[ 风险声明 (欧洲) ]:
R10

[ 安全声明 (欧洲) ]:
S26-S36-S62

[ 危险品运输编码 ]:
UN 2618 3/PG 3

[ WGK德国 ]:
3

[ RTECS号 ]:
WL5076000

[ 包装等级 ]:
III

[ 危险类别 ]:
3

[ 海关编码 ]:
29029050

4-甲基苯乙烯合成路线

4-甲基苯乙烯上下游产品

4-甲基苯乙烯上游产品

4-甲基苯乙烯下游产品

4-甲基苯乙烯制备

对甲基乙苯经脱氢，即得对甲基苯乙烯。或以改性ZSM-5沸石为催化剂，由乙烯在甲苯上烷基化、脱氢而得。

将氨型ZSM-5加到醋酸镁四水合物水溶液中，将悬浮物加热到92℃，放置过夜，再放到结晶盘中升温到110℃，经过7h，温度升到200℃，1h后，将催化剂移到500℃加热炉中过夜，得成品催化剂，含Mg的氧化物为10.1%（质量）。

采用上述催化剂用乙烯对甲苯进行烷基化，反应温度350℃，体积空速度7.4，甲苯/乙烯进料摩尔比=5.1，连续进料1h，甲苯转化率为12.6%，对甲基乙苯选择性为98.79%。

4-甲基苯乙烯海关

[ 海关编码 ]: 2902909090

[ 中文概述 ]:
2902909090. 其他芳香烃. 增值税率:17.0%. 退税率:9.0%. 监管条件:无. 最惠国关税:2.0%. 普通关税:30.0%

[ 申报要素 ]: 品名, 成分含量

[ Summary ]:
2902909090 other aromatic hydrocarbons。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:2.0%。General tariff:30.0%

4-甲基苯乙烯文献

Mercapturic acid metabolites from 2-, 3-, and 4-ethenyl-methylbenzenes in the rat.

Xenobiotica 14(5) , 417-28, (1984)

N-Acetyl-L-cysteine was reacted with 2-(2-, 3-, or 4-methylphenyl)-oxiranes to give mixtures of the two possible regio isomers N-acetyl-S-[1-(2-, 3-, or 4-methylphenyl)-2-hydroxyethyl]-L-cysteine and ...

Synthesis and study of cationic, two-coordinate triphenylphosphine-gold-π complexes.

Chemistry 19(25) , 8276-84, (2013)

Cationic, two-coordinate triphenylphosphine-gold(I)-π complexes of the form [(PPh₃)Au(π ligand)]⁺SbF₆⁻ (π ligand=4-methylstyrene, 1∙SbF₆), 2-methyl-2-butene (3∙SbF₆), 3-hexyne (6∙SbF₆), 1,3-cyclohexad...

Origin of threefold symmetric torsional potential of methyl group in 4-methylstyrene.

J. Chem. Phys. 124(14) , 144316, (2006)

To understand the effect of the para position vinyl group substitution in toluene on methyl torsion, we investigated 4-methylstyrene, a benchmark molecule with an extended pi conjugation. The assignme...

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