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
- Molecular Weight:
- 130.19
- MOL File:
- 1321-74-0.mol
- Modify Date:
- 2024/6/19 22:55:17
| 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 |
n |
| 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 |
| LogP | 3.6 |
| CAS DataBase Reference | 1321-74-0(CAS DataBase Reference) |
| EPA Substance Registry System | Divinylbenzene (1321-74-0) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |   GHS07,GHS09 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H315-H319-H411 | |||||||||
| Precautionary statements | P264-P273-P280-P302+P352-P305+P351+P338-P332+P313 | |||||||||
| 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 | |||||||||
| Toxicity | LD50 orally in Rabbit: 4100 mg/kg LD50 dermal Rabbit 8000 mg/kg | |||||||||
| NFPA 704 |
|
Divinylbenzene price More Price(17)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich(India) | 8.03598 | Divinylbenzene (stabilised with 4-tert-butylpyrocatechol) for synthesis | 1321-74-0 | 250ML | ₹6030 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 8.03598 | Divinylbenzene (stabilised with 4-tert-butylpyrocatechol) for synthesis | 1321-74-0 | 4KG | ₹18430 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 8.03598 | Divinylbenzene (stabilised with 4-tert-butylpyrocatechol) for synthesis | 1321-74-0 | 1L | ₹18740 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 8.03598 | Divinylbenzene (stabilised with 4-tert-butylpyrocatechol) for synthesis | 1321-74-0 | 10L | ₹67219.99 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 414565 | Divinylbenzene technical grade, 80% | 1321-74-0 | 250ML | ₹5282.78 | 2022-06-14 | Buy |
Divinylbenzene Chemical Properties,Uses,Production
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.
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
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
1of2
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|---|---|---|---|---|---|
| GOALSY PHARMA | +91-8247562464 +91-9885583385 | Hyderabad, India | 479 | 58 | Inquiry |
| AnalyticsStanza Inc | +91-7032031309 +91-7032031309 | Hyderabad, India | 227 | 58 | Inquiry |
| A.J Chemicals | 91-9810153283 | New Delhi, India | 6124 | 58 | Inquiry |
| TCI Chemicals (India) Pvt. Ltd. | 1800 425 7889 | New Delhi, India | 6778 | 58 | Inquiry |
| Otto Chemie Pvt. Ltd. | +91 9820041841 | Mumbai, India | 5873 | 58 | Inquiry |
| Alfa Aesar | 1 800 209 7001 | Maharashtra, India | 6913 | 58 | Inquiry |
| SynZeal Research Pvt Ltd | +1 226-802-2078 | Gujarat, India | 6522 | 58 | Inquiry |
| Organic Chemicals | 08048372709Ext 384 | Pune, India | 75 | 58 | Inquiry |
| Manali Traders | 07942547056 | Mumbai, India | 6 | 58 | Inquiry |
| CLEARSYNTH LABS LTD. | +91-22-45045900 | Hyderabad, India | 6351 | 58 | Inquiry |
| Supplier | Advantage |
|---|---|
| GOALSY PHARMA | 58 |
| AnalyticsStanza Inc | 58 |
| A.J Chemicals | 58 |
| TCI Chemicals (India) Pvt. Ltd. | 58 |
| Otto Chemie Pvt. Ltd. | 58 |
| Alfa Aesar | 58 |
| SynZeal Research Pvt Ltd | 58 |
| Organic Chemicals | 58 |
| Manali Traders | 58 |
| CLEARSYNTH LABS LTD. | 58 |