1-Vinylimidazole Property

Melting point:

78-79°C

Boiling point:

192-194 °C (lit.) 78-79 °C/13 mmHg (lit.)

Density 

1.039 g/mL at 25 °C (lit.)

vapor pressure 

38Pa at 20℃

refractive index 

n20/D 1.533(lit.)

Flash point:

178 °F

storage temp. 

under inert gas (nitrogen or Argon) at 2-8°C

solubility 

Acetonitrile (Slightly), Chloroform (Slightly)

form 

Oil

pka

6.07±0.10(Predicted)

color 

Colourless

Odor

Amines-like odor

Water Solubility 

Miscible with water.

Sensitive 

Light Sensitive

BRN 

105321

Stability:

Stable. Hygroscopic. Incompatible with strong oxidizing agents.

LogP

0.54 at 25℃

CAS DataBase Reference

1072-63-5(CAS DataBase Reference)

NIST Chemistry Reference

N-vinylimidazole(1072-63-5)

EPA Substance Registry System

1H-Imidazole, 1-ethenyl- (1072-63-5)

Safety

Hazard Codes 

C,F

Risk Statements 

22-34-41

Safety Statements 

26-36/37/39-45

RIDADR 

UN 3267 8/PG 2

WGK Germany 

3

F 

10

Hazard Note 

Flammable/Light Sensitive

TSCA 

Yes

HazardClass 

8

PackingGroup 

III

HS Code 

29339900

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H302Harmful if swallowed

H318Causes serious eye damage

Precautionary statements

P201Obtain special instructions before use.

P202Do not handle until all safety precautions have been read and understood.

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

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

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

P308+P313IF exposed or concerned: Get medical advice/attention.

1-Vinylimidazole Chemical Properties,Usage,Production

Chemical Properties

Brown liquid

Uses

1-Vinylimidazole is used as a monomer in the synthesis of molecularly imprinted polymers. It is involved in the removal of vinyl protecting groups with an isoprene-catalyzed lithiation process. Also, it is involved in the preparation of magnetic-poly(divinylbenzene-1-vinylimidazole) microbeads. Further, it is used to prepare ion imprinted polyvinylimidazole-silica hybrid copolymer.

Application

1-Vinylimidazole has been employed:

• as functional monomer in the synthesis of molecularly imprinted polymers
• as monomer in the preparation of magnetic-poly(divinylbenzene-1-vinylimidazole) [m-poly(DVB-VIM)] microbeads
• in the synthesis of novel ion imprinted polyvinylimidazole-silica hybrid copolymer (IIHC)
• in removal of the vinyl protecting group via isoprene-catalyzed lithiation process

Polymerization

Poly(vinylimidazole)s, which contain heterocyclic aromatic rings on the polymer side chains, are of increasing interest for a wide variety of applications ranging from catalysis, polymeric ionic liquids to membrane material. Researcher demonstrated that well-controlled and low dispersity (as low as 1.05) poly(1VIM) could be synthesized via RAFT polymerization by using acetic acid as a special solvent. Acetic acid not only works as a solvent that allows homogeneous polymerization, it also protonates 1VIM, thereby, allowing the stabilization of propagating radicals during polymerization. The synthesis of well-controlled poly(1VIM) is expected to greatly expand the design and utility of vinyl imidazole-based materials and their applications in catalysis, membrane material, heavy metal removal, fuel cells and many other fields.

Toxics Screening Level

The ITSL for 1-vinylimidazole is 180 μg/m3 with a 24-hr averaging time.