Description Physical properties Uses Reference
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Divinylbenzene

Description Physical properties Uses Reference
Product Name
Divinylbenzene
CAS No.
1321-74-0
Chemical Name
Divinylbenzene
Synonyms
DVB;1，2-Divinylbenzene;dvb-55;dvb-80;vinylstyrene;dvb-22;dvb-27;dvb-100;divinyl-benzen;o-vinylstyrene
CBNumber
CB4277758
Molecular Formula
C10H10
Formula Weight
130.19
MOL File
1321-74-0.mol
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Divinylbenzene Property

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
color 
Colorless to pale yellow
Specific Gravity
0.914
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
LogP
3.6
CAS DataBase Reference
1321-74-0(CAS DataBase Reference)
EPA Substance Registry System
Divinylbenzene (1321-74-0)
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Safety

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
OEB
A
OEL
TWA: 10 ppm (50 mg/m3)
WGK Germany 
2
RTECS 
CZ9370000
Autoignition Temperature
878 °F
TSCA 
Yes
HazardClass 
9
PackingGroup 
III
HS Code 
29029090
Hazardous Substances Data
1321-74-0(Hazardous Substances Data)
Toxicity
LD50 orally in Rabbit: 4100 mg/kg LD50 dermal Rabbit 8000 mg/kg
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H411Toxic to aquatic life with long lasting effects

Precautionary statements

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P273Avoid release to the environment.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P332+P313IF SKIN irritation occurs: Get medical advice/attention.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
8.03598
Product name
Divinylbenzene
Purity
(stabilised with 4-tert-butylpyrocatechol) for synthesis
Packaging
250ML
Price
$62.9
Updated
2024/03/01
Sigma-Aldrich
Product number
8.03598
Product name
Divinylbenzene
Purity
(stabilised with 4-tert-butylpyrocatechol) for synthesis
Packaging
1L
Price
$210
Updated
2024/03/01
Sigma-Aldrich
Product number
169099
Product name
Divinylbenzene
Purity
technical grade, 55%
Packaging
250ml
Price
$85.3
Updated
2024/03/01
Sigma-Aldrich
Product number
169099
Product name
Divinylbenzene
Purity
technical grade, 55%
Packaging
1l
Price
$224
Updated
2024/03/01
Sigma-Aldrich
Product number
8.03598
Product name
Divinylbenzene
Purity
(stabilised with 4-tert-butylpyrocatechol) for synthesis
Packaging
4kg
Price
$262
Updated
2022/05/15
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Divinylbenzene Chemical Properties,Usage,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

Description

Divinylbenzene exists as o-, m-, and p-isomers. The commercial product contains all 3 isomers, but m-isomer predominates. Usually contains an inhibitor to preventpolymerization. The CAS number for the mixed isomersappears on most regulatory lists.DVB is a pale, straw-colored liquid. Molecularweight= 130.20; Specific gravity (H2O:1) 5 0.93; Boilingpoint= 195-200℃; Freezing/Melting point = 2 66.7to 252℃; Vapor pressure=  0.7 mmHg at 20℃; Flashpoint= 62℃ (cc); 76℃ (oc); Autoignition temperature=469℃. Explosive limits: LEL = 0.7%; UEL= 6.2%.Hazard Identification (based on NFPA-704 M RatingSystem): Health 1, Flammability 2, Reactivity 2. Insolublein water.

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

Uses

Divinylbenzene is used as a reactive monomer in polyester resins and for the synthesis of highly crosslinked macroporous styrene as well as a crosslinking agent. It acts as an intermediate in the production of ion exchange resin. Further, it is used in making rubber, petroleum production and polymeric core shell nanoparticles. In addition, it is used to synthesize monodispersed poly divinylbenzene microspheres.

Definition

ChEBI: 1,2-Divinylbenzene is a member of styrenes.

General Description

Divinylbenzene (DVB) consists of a combination of meta and para isomers of DVB and ethylvinylbenzene. It can be used as a monomer for the preparation of linear polydivinylbenzene by anionic polymerization.

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

Divinylbenzene 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.

Flammability and Explosibility

Not classified

Safety Profile

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

Potential Exposure

Tumorigen,Mutagen. This compound is used as a monomer for thepreparation of special synthetic rubbers, drying oils, ionexchange resins and casting resins, and in polyester resinmanufacture

First aid

If Divinylbenzene gets into the eyes, remove anycontact lenses at once and irrigate immediately for at least15 min, occasionally lifting upper and lower lids. Seek medical attention immediately. If this chemical contacts theskin, remove contaminated clothing and wash immediatelywith soap and water. Seek medical attention immediately. Ifthis chemical has been inhaled, remove from exposure,begin rescue breathing (using universal precautions, including resuscitation mask) if breathing has stopped and CPR ifheart action has stopped. Transfer promptly to a medicalfacility. When this chemical has been swallowed, get medical attention. Give large quantities of water and inducevomiting. Do not make an unconscious person vomit.

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).

storage

Color Code—Red: Flammability Hazard: Store ina flammable liquid storage area or approved cabinet awayfrom ignition sources and corrosive and reactive materials.Prior to working with DVB you should be trained on itsproper handling and storage. Before entering confined spacewhere this chemical may be present, check to make sure thatan explosive concentration does not exist. Store in tightlyclosed containers in a cool, well-ventilated area away frommetallic salts (such as ferric and aluminum chlorides) andoxidizers (such as perchlorates, peroxides, permanganates,chlorates, and nitrates). Store in tightly closed containers ina cool, well-ventilated area away from heat. Sources of ignition, such as smoking and open flames, are prohibited wherethis chemical is used, handled, or stored in a manner thatcould create a potential fire or explosion hazard. Metal containers involving the transfer of 5 gallons or more of thischemical should be grounded and bonded. Drums must beequipped with self-closing valves, pressure vacuum bungs,and flame arresters. Use only nonsparking tools and equipment, especially when opening and closing containers ofthis chemical.

Shipping

Diethylbenzene requires a shipping label of“FLAMMABLE LIQUID.” It falls in Hazard Class 3 andPacking Group II

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.]

Incompatibilities

Forms explosive mixture with air.Violent reaction with strong oxidizers, metallic salts. Ableto polymerize; add inhibitor and monitor to insure effectivelevels are maintained at all times. May accumulate staticelectrical charges, and may cause ignition of its vapors.

Divinylbenzene Preparation Products And Raw materials

Raw materials

Diethylbenzene

Preparation Products

the preparation and adsorption of poly (p-hydroxystyrene) adsorbents 4-(PIPERIDINE-1-CARBONYL)PHENYLBORONIC ACID 4-(2-CYANOETHYLAMINOCARBONYL)PHENYLBORONIC ACID 3-(2-CYANOETHYLAMINOCARBONYL)PHENYLBORONIC ACID ANION EXCHANGE RESIN 717 Cu(II) imprinted chelating resin AMBERLITE XAD-16 styrene type polyethylene homogeneous anion exchange membrane DOWEX(R) 1X8 4-(PYRROLIDIN-1-YLMETHYL)BENZENEBORONIC ACID, PINACOL ESTER 97%1-[4-(4,4,5,5-TETRAMETHYL-1,3,2-DIOXABOROLAN-2-YL)BENZYL]PYRROLIDINE
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View Lastest Price from Divinylbenzene manufacturers

Hebei Zhuanglai Chemical Trading Co.,Ltd
Product
Divinyl Benzene 1321-74-0
Price
US $100.00/kg
Min. Order
1kg
Purity
99
Supply Ability
5000
Release date
2024-04-26
Shandong Deshang Chemical Co., Ltd.
Product
Divinylbenzene 1321-74-0
Price
US $15.00-10.00/kg
Min. Order
1kg
Purity
99.99%
Supply Ability
10 tons
Release date
2024-06-19
Hebei Weibang Biotechnology Co., Ltd
Product
Divinylbenzene 1321-74-0
Price
US $0.00-0.00/KG
Min. Order
50KG
Purity
99%
Supply Ability
500000kg
Release date
2024-10-25

1321-74-0, DivinylbenzeneRelated Search:

CHLORODIMETHYLVINYLSILANE Pyrrole 4-Vinylbenzoic acid Styrene Acetyl ketene 4-Hydroxystyrene VINYL PROPIONATE N-Vinyl-2-pyrrolidone Benzoyl peroxide Potassium persulfate Vinyl ester resin 1,3-DIVINYLBENZENE,META-DIVINYLBENZENE,1,3-DIVINYLBENZENE,META-DIVINYLBENZENE INDENO[2,1-B]CHROMENE-6-CARBOXALDEHYDE Sulindac AMBERLITE(R) XAD-1180 Cyproheptadine Vinyl resin Cyproheptadine hydrochloride sesquihydrate

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