二乙烯苯

二乙烯苯用途

【用途一】
用作树脂、油漆及特种橡胶的原料
【用途二】
二乙烯基苯具有两个乙基烯，共聚时能生成三维结构的不溶不熔性聚合物。因此是一种十分有用的交联剂，广泛用于离子交换树脂、离了交换膜、ABS树脂、聚苯乙烯树脂、不饱和聚酯树脂、合成橡胶、木材加工、碳加工等。
【用途三】
有机合成。二乙烯基苯具有两个乙基烯，共聚时能生成三维结构的不溶不熔性聚合物。因此是一种十分有用的交联剂，广泛用于离子交换树脂；离了交换膜；ABS树脂；聚苯乙烯树脂；不饱和聚酯树脂；合成橡胶；木材加工；碳加工等。

二乙烯苯名称

[ CAS 号 ]:
1321-74-0

[ 中文名 ]:
二乙烯苯

[ 英文名 ]:
Divinylbenzene

[中文别名 ]:

[英文别名 ]:

p-Divinylbenzene
dvb-80
vinylstyrene
Benzene, 1,4-diethenyl-
dvb-55
dvb-22
divinyl-benzen
dvb-100
DVB
dvb-27

二乙烯苯物理化学性质

[ 密度 ]:
0.9±0.1 g/cm3

[ 沸点 ]:
212.1±10.0 °C at 760 mmHg

[ 熔点 ]:
-66.9ºC

[ 分子式 ]:
C₁₀H₁₀

[ 分子量 ]:
130.186

[ 闪点 ]:
75.1±7.6 °C

[ 精确质量 ]:
130.078247

[ LogP ]:
3.18

[ 外观性状 ]:
无色液体

[ 蒸汽密度 ]:
4.5 (vs air)

[ 蒸汽压 ]:
0.3±0.2 mmHg at 25°C

[ 折射率 ]:
1.596

[ 储存条件 ]:
库房低温,通风,干燥,不可久置,防火,与氧化剂分开存放

[ 稳定性 ]:
Stable in the presence of added inhibitor, but may polymerize in the absence of inhibitor. Light and heat sensitive. Incompatible with heavy metal salts, oxidizing agents, acids.

[ 凝固点 ]:
-87℃

二乙烯苯MSDS

详细MSDS(安全技术说明书)

二乙烯苯毒性和生态

CHEMICAL IDENTIFICATION

RTECS NUMBER :: CZ9370000

CHEMICAL NAME :: Benzene, divinyl-

CAS REGISTRY NUMBER :: 1321-74-0

LAST UPDATED :: 199712

DATA ITEMS CITED :: 11

MOLECULAR FORMULA :: C10-H10

MOLECULAR WEIGHT :: 130.20

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 10 mL/kg

TOXIC EFFECTS :: Lungs, Thorax, or Respiration - fibrosis, focal (pneumoconiosis) Lungs, Thorax, or Respiration - acute pulmonary edema Blood - hemorrhage

TYPE OF TEST :: Micronucleus test

TYPE OF TEST :: Cytogenetic analysis

MUTATION DATA

TEST SYSTEM :: Rodent - mouse

REFERENCE :: MUREAV Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE Amsterdam, Netherlands) V.1- 1964- Volume(issue)/page/year: 370,107,1996 *** REVIEWS *** ACGIH TLV-TWA 53 mg/m3 (10 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 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH RECOMMENDED EXPOSURE LEVEL (REL) : NIOSH REL TO DIVINYL BENZENE-air:10H TWA 10 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 - 83286 No. of Facilities: 164 (estimated) No. of Industries: 5 No. of Occupations: 14 No. of Employees: 12271 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 83286 No. of Facilities: 3 (estimated) No. of Industries: 1 No. of Occupations: 1 No. of Employees: 11 (estimated)

二乙烯苯安全信息

[ 符号 ]:

GHS05, GHS07

[ 信号词 ]:
Danger

[ 危害声明 ]:
H302-H315-H317-H318-H335-H412

[ 警示性声明 ]:
P273-P280-P301 + P312 + P330-P304 + P340 + P312-P305 + P351 + P338 + P310-P333 + P313

[ 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) ]:
Xi,Xn

[ 风险声明 (欧洲) ]:
R37/38:Irritating to respiratory system and skin . R41:Risk of serious damage to eyes. R22:Harmful if swallowed.

[ 安全声明 (欧洲) ]:
S7-S23-S26-S36-S45-S39

[ 危险品运输编码 ]:
NA 1993 / PGIII

[ WGK德国 ]:
2

[ RTECS号 ]:
CZ9370000

二乙烯苯制备

1.乙烯和苯经烷基化制取乙苯时，作为副产物得到混合二乙基苯，此二乙基苯的三种异构体沸点相近；难以分离。所以，通常以混合二乙基苯原料，经脱氢制取邻；间；对二乙烯基苯反应式如下：

混合二乙基苯在水蒸气存在下［二乙苯∶水＝1∶（4～6）］，以Fe-Cr-K为催化剂，在500～700℃下脱氢可得二乙烯基苯。脱氢过程和乙苯脱氢制苯乙烯相似，但反应温度高于600℃，过热蒸汽量也高于乙苯脱氢。脱氢液含有主要产物二乙烯基苯、未反应的二乙基苯和少量的苯、甲苯、二甲苯、乙苯、苯乙烯、乙烯基甲苯、甲乙苯等副产物。邻二乙基苯脱氢转化为萘，在精制过程中除去。未反应的二乙基苯及部分乙基乙烯基苯循环使用。脱氢液进入粗分塔，塔顶产物进入精馏塔，低沸点物质从精
馏塔顶蒸出，作为溶剂出售或作为燃料；精馏塔底产物返回脱氢反应器循环使用。粗分塔底部产物送至成品塔进行减压精馏，萘和焦油从塔底放出，含有乙基乙烯基苯的二乙烯基苯从塔顶蒸出。二乙烯基苯的三种异构体沸点较高，在减压下，间、对位体的沸点都是52℃ (0.4KPa），因此很难分离而混合使用。

2.烷基化反应　采用氯化铝催化剂（反应温度100～200℃）或沸石催化剂（反应温度200～450℃）催化苯与乙烯的反应

脱氢反应　采用铁系催化剂（600～700℃）使其反应。因为DVB和SM不同，会发生交联聚合，故一旦发生聚合的话再要使它溶解是非常困难。一进入某个高温区域，DVB往往发生ω聚合，瞬间聚合物容积增加，破坏装置。要防止在反应设备、蒸馏设备中发生聚合。反应式如下

二乙烯苯文献

Online capillary solid-phase microextraction coupled liquid chromatography-mass spectrometry for analysis of chiral secondary alcohol products in yeast catalyzed stereoselective reduction cell culture.

J. Chromatogr. A. 1380 , 1-10, (2015)

An online solid-phase microextraction coupled liquid chromatography-electrospray ionization-ion trap mass spectrometry was developed for the analysis of trace R- and S-4-phenyl-2-butanol (R- and S-pbo...

A salting out system for improving the efficiency of the headspace solid-phase microextraction of short and medium chain free fatty acids.

J. Chromatogr. A. 1409 , 282-7, (2015)

Given the importance of short and medium chain free fatty acids (FFAs) in several fields, this study sought to improve the extraction efficiency of the solid-phase microextraction (SPME) of FFAs by ev...

Olfactometry Profiles and Quantitation of Volatile Sulfur Compounds of Swiss Tilsit Cheeses.

J. Agric. Food Chem. 63 , 7511-21, (2015)

To establish the odor profiles of three differently fabricated commercial Swiss Tilsit cheeses, analyses were conducted using headspace solid-phase microextraction gas chromatography-mass spectrometry...

更多文献