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Divinylbenzene

Description Physical properties Uses Reference
Divinylbenzene
Divinylbenzene structure
CAS No.
1321-74-0
Chemical Name:
Divinylbenzene
Synonyms
DVB;dvb-22;dvb-27;dvb-55;dvb-80;dvb-100;vinylstyrene;divinyl-benzen;o-vinylstyrene;DIVINYLBENZENE
CBNumber:
CB4277758
Molecular Formula:
C10H10
Formula Weight:
130.19
MOL File:
1321-74-0.mol

Divinylbenzene Properties

Melting point:
-87.1°C
Boiling point:
195 °C(lit.)
Density 
0.919 g/mL at 20 °C
vapor density 
4.5 (vs air)
vapor pressure 
0.9 mm Hg ( 30 °C)
refractive index 
n20/D 1.561(lit.)
Flash point:
148 °F
storage temp. 
Store at +2°C to +8°C.
solubility 
5mg/l
form 
Liquid
Specific Gravity
0.914
color 
Colorless to pale yellow
explosive limit
1.1-6.2%(V)
Water Solubility 
Miscible with ethanol and ether. Immiscible with water.
FreezingPoint 
-87℃
Sensitive 
Light Sensitive
Stability:
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.
InChIKey
YARNEMCKJLFQHG-UHFFFAOYSA-N
CAS DataBase Reference
1321-74-0(CAS DataBase Reference)
Indirect Additives used in Food Contact Substances
DIVINYLBENZENE
FDA 21 CFR
175.105; 176.180; 177.1010; 178.3790
FDA UNII
IZ715T4SBU
EPA Substance Registry System
Divinylbenzene (1321-74-0)
SAFETY
  • Risk and Safety Statements
Symbol(GHS) 
GHS05,GHS07,GHS08,GHS09
Signal word  Danger
Hazard statements  H227-H319-H336-H341-H361-H373-H411-H302-H315-H317-H318-H335-H412
Precautionary statements  P273-P280-P301+P312+P330-P304+P340+P312-P305+P351+P338+P310-P333+P313-P210e-P261-P280a-P305+P351+P338-P501a-P201-P202-P210-P260-P264-P271-P302+P352+P332+P313+P362+P364-P305+P351+P338+P337+P313-P308+P313-P370+P378-P391-P403+P233-P405-P501
Hazard Codes  Xi,Xn
Risk Statements  37/38-41-22-52/53
Safety Statements  7-23-26-36-45-39-61
RIDADR  NA 1993 / PGIII
WGK Germany  2
RTECS  CZ9370000
Autoignition Temperature 878 °F
TSCA  Yes
HazardClass  9
PackingGroup  III
HS Code  29029090
Toxicity LD50 orally in Rabbit: 4100 mg/kg LD50 dermal Rabbit 8000 mg/kg
NFPA 704
2
1 2

Divinylbenzene price More Price(18)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 8.03598 Divinylbenzene (stabilised with 4-tert-butylpyrocatechol) for synthesis 1321-74-0 250 mL $45.79 2021-03-22 Buy
Sigma-Aldrich 169099 Divinylbenzene technical grade, 55% 1321-74-0 250ml $66.5 2020-08-18 Buy
Sigma-Aldrich 8.03598 Divinylbenzene (stabilised with 4-tert-butylpyrocatechol) for synthesis 1321-74-0 1 L $155.4 2021-03-22 Buy
Sigma-Aldrich 169099 Divinylbenzene technical grade, 55% 1321-74-0 1l $181 2020-08-18 Buy
Sigma-Aldrich 8.03598 Divinylbenzene (stabilised with 4-tert-butylpyrocatechol) for synthesis 1321-74-0 4 kg $219.22 2021-03-22 Buy

Divinylbenzene Chemical Properties,Uses,Production

Description

Divinylbenzene is a clear yellow liquid with an aromatic odour. It is a highly flammable and reactive chemical, and the liquid and vapour are combustible. It is incompatible with strong acids and oxidising agents and peroxides. Divinylbenzene reacts vigorously with strong oxidising agents. It also reacts exothermically with both acids and bases, with reducing agents (such as alkali metals and hydrides), and release gaseous hydrogen. May react exothermically with both acids and bases or initiators undergo exothermic polymerisation. It is an extremely versatile chemical cross-linking agent used to improve polymer properties. Divinylbenzene has extensive industrial applications for example, in the manufacture of adhesives, plastics, elastomers, ceramics, biological materials, catalysts, membranes, pharmaceuticals, specialty polymers, and ion exchange resins, as coatings, divinyl benzene has been reported to improve surface properties of rubber goods for biomedical applications, used in photocurable protective coatings for wood, metal, glass, and plastic materials.

Physical properties

Divinylbenzene is a water-white to straw colored liquid. Slightly less dense than water and insoluble in water. Vapors may be toxic. Used in making rubber.Synthetic rubber is any one of a group of man-made elastomers that approximate one or more of the properties of natural rubber(polyisoprene). Divinylbenzene has been used in Styrene-Butadiene copolymers (SBR) as adhesives and as processing aids in the extrusion of general purpose rubbers. Rubbers used as impact modifiers such as Methacrylate-Butadiene-Styrene (MBS) have been improved with the inclusion of Divinylbenzene.

Uses

Divinylbenzene (DVB) is an extremelyversatile cross-linking agent that also improves polymer properties. it has been used to manufacture adhesives,plastics, elastomers, ceramics, biologicalmaterials, coatings, catalysts, membranes, pharmaceuticals, specialty polymers, and ion exchange resins.
DVB has been found to improve the hightemperature strength of adhesives used tobond aluminum to aluminum. Used in anacrylic hydrosol to bond Bakelite resin andpolyester film, DVB was found to increasecreep rupture time dramatically. DVB hasfound utility in cross-linked styrene/butadienepolymers used for caulks and mastics for theconstruction industry.
DVB has been used in the production ofreversed-phase packings for liquidchromatography. Highly cross-linkedpolystyrene packings have been shown tofunction under extreme conditions of highpressures and temperatures. Ion exchangechromatography (IEC) is applicable to theseparation of almost any type of chargedmolecule, from large proteins to smallnucleotides and amino acids.

Reference

  1. F. C. Huang, C. H. Ke, C. Y. Kao, W. C. Lee, Preparation and application of partially porous poly(styrene‐divinylbenzene) particles for lipase immobilization, Journal of Applied Polymer Science, 2001, vol. 80, pp. 39-46
  2. Teresa Norber-King, Toxicity Reduction and Toxicity Identification Evaluation for effluents, ambient waters, and other aqueous media, 2001, ISBN 1-880611-64-3

Chemical Properties

A water-white to straw colored liquid. Slightly less dense than water and insoluble in water. Flash point below 141°F. Vapors may be toxic. Used in making rubber.

Uses

Divinylbenzene is a specialty monomer used primarily to make cross-linked polystyrene resins. The largest use of divinylbenzene (DVB) [CAS: 1321-74-0] is in ion-exchange resins for domestic and industrial water softening. Ion-exchange resins are also used as solid acid catalysts for certain reactions, such as esterification. Divinylbenzene is manufactured by dehydrogenation of diethylbenzene, which is an internal product in the alkylation plant for ethylbenzene production.

Uses

Comonomer for preparation of crosslinked polymers in production of ion exchange beads and gel permeation chromatography polystyrene beads; polymerization monomer for synthetic rubber, drying oils, and casting resins

Air & Water Reactions

Flammable. Insoluble in water.

Reactivity Profile

Divinylbenzene may react vigorously with strong oxidizing agents. Can react exothermically with reducing agents (such as alkali metals and hydrides) to release gaseous hydrogen. May react exothermically with both acids and bases. May in the presence of various catalysts (such as acids) or initiators undergo exothermic polymerization. Inhibited by presence of an additive. When uninhibited violent polymerization may occur . Substitution at the benzene nucleus occurs by halogenation (acid catalyst), nitration, sulfonation, and the Friedel-Crafts reaction.

Health Hazard

Divinyl benzene is an irritant of eyes, nose, and mucous membranes.
Mild respiratory irritation occurred in workers exposed to 0.4–4ppm divinyl benzene. Mild irritation was also reported from skin and eye contact.

Fire Hazard

Divinylbenzene is combustible.

Safety Profile

Mildly toxic by ingestion. An eye irritant. Combustible. When heated to decomposition it emits acrid smoke and irritating fumes.

Carcinogenicity

Divinyl benzene was weakly genotoxic in vivo, inducing a dose-dependent increase in sister chromatid exchanges and an increase in the frequency of chromosome aberrations in male mice exposed at concentrations of up to 75ppm for 3 days.
The 2003 ACGIH threshold limit valuetime- weighted average (TLV-TWA) for divinyl benzene is 10ppm (53mg/m3).

Purification Methods

Purify divinylbenzene by dissolving in Et2O, shaking with H2O, drying over CaCl2, filtering, evaporating and distilling in vacuo. It polymerises within 2-3days unless 4-tertbutylcatechol (0.05%) is added as stabilizer. [Fries & Bestian Chem Ber 69 715 1936, Beilstein 5 III 1366.]

Divinylbenzene Preparation Products And Raw materials

Raw materials

Preparation Products


Divinylbenzene Suppliers

Global( 231)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
CD Chemical Group Limited
+8613651442114
0086-13651442114 info@codchem.com China 20384 58
Henan DaKen Chemical CO.,LTD.
+86-371-66670886
info@dakenchem.com China 20891 58
Henan Tianfu Chemical Co.,Ltd.
0371-55170693
0371-55170693 info@tianfuchem.com CHINA 22607 55
career henan chemical co
+86-371-86658258
sales@coreychem.com CHINA 29954 58
NINGBO INNO PHARMCHEM CO., LTD.
13867897135
sales@nbinno.com CHINA 925 58
Hubei xin bonus chemical co. LTD
86-13657291602
027-59338440 linda@hubeijusheng.com CHINA 23035 58
Shandong chuangyingchemical Co., Ltd.
18853181302
sale@chuangyingchem.com CHINA 5917 58
BOC Sciences
1-631-485-4226
1-631-614-7828 inquiry@bocsci.com United States 19752 58
Chongqing Chemdad Co., Ltd
+86-13650506873
sales@chemdad.com CHINA 37282 58
BEYOND INDUSTRIES (CHINA) LIMITED
+8613917686115
+862162570268 sales@beyondindustriesgroup.com CHINA 704 58

View Lastest Price from Divinylbenzene manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2021-12-01 Divinyl Benzene
1321-74-0
US $10.50 / KG 1KG 50/80% 10 ton Hebei Crovell Biotech Co Ltd
2020-01-08 Divinylbenzene
1321-74-0
US $0.10 / KG 1KG 99.0% 1000 tons Shaanxi Dideu Medichem Co. Ltd
2019-07-06 Divinylbenzene
1321-74-0
US $1.00 / KG 1KG 98% 150KG career henan chemical co

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