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N-Vinylcaprolactam

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N-Vinylcaprolactam Basic information

Product Name:
N-Vinylcaprolactam
Synonyms:
  • 2H-Azepin-2-one, 1-ethenylhexahydro-
  • n-vinyl-
  • N-VINYL-E-CAPROLACTAM
  • 1-Ethenyl-2,3,4,5,6,7-hexahydro-1H-azepin-2-one
  • 1-Vinyl-4,5,6,7-tetrahydro-1H-azepine-2(3H)-one
  • 1-Vinylhexahydro-1H-azepine-2-one
  • N-Vinyl Caprolactam (V-CAP)
  • NVCL
CAS:
2235-00-9
MF:
C8H13NO
MW:
139.19
EINECS:
218-787-6
Product Categories:
  • Biodegradable Polymer Monomers
  • Monomers
  • Polymer Science
Mol File:
2235-00-9.mol
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N-Vinylcaprolactam Chemical Properties

Melting point:
35-38 °C (dec.) (lit.)
Boiling point:
128 °C/21 mmHg (lit.)
Density 
1.029 g/mL at 25 °C (lit.)
vapor pressure 
3Pa at 20℃
refractive index 
1.
Flash point:
214 °F
storage temp. 
2-8°C
form 
powder to lump to clear liquid
pka
-0.91±0.20(Predicted)
color 
White or Colorless to Light orange to Yellow
Odor
Faint specific odor
Water Solubility 
Soluble in water (partly).
FreezingPoint 
34
Stability:
Stable. Combustible. Incompatible with strong oxidizing agents.
InChIKey
JWYVGKFDLWWQJX-UHFFFAOYSA-N
LogP
1.2 at 25℃
CAS DataBase Reference
2235-00-9(CAS DataBase Reference)
EPA Substance Registry System
2H-Azepin-2-one, 1-ethenylhexahydro- (2235-00-9)
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Safety Information

Hazard Codes 
Xn
Risk Statements 
22-41-36/37/38
Safety Statements 
26-39-36
WGK Germany 
3
TSCA 
Yes
HS Code 
29337900

MSDS

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N-Vinylcaprolactam Usage And Synthesis

Chemical Properties

N-Vinylcaprolactam is a pale yellow crystalline solid. It is a versatile reactive diluent for free radical radiation curable coatings, inks, and adhesives which are used on a wide variety of substrates such as flooring, paper, plastics and more.

Uses

N-Vinyl-e-caprolactam (cas# 2235-00-9) is a compound useful in organic synthesis.

benefits

N-Vinylcaprolactam serves as a diluent when coating plastics, as it softens the surface thereby aiding adhesion of the cured film. The monomer N-Vinyl caprolactam provides fast curing and low viscosity and is relatively safe in radiation curable ink. Commercial uses of this chemical have also been reported to include use as a kinetic inhibitor for natural gas hydrates when integrated as a polymer.

General Description

N-Vinylcaprolactam (NVCL) is an organo-soluble amphiphilic material that is soluble in solvents like benzene, isobutanol, and isopropanol. It can be used in the preparation of poly(NVCL) by free-radical polymerization at a temperature higher than its melting point.

Flammability and Explosibility

Non flammable

Safety Profile

The acute oral LD50 of vinylcaprolactam was determined to be 1114mg/kg in rats. The acute oral LD50 was determined to be 1236mg/kg in male rats and 1049mg/kg in female rats.

Potential Exposure

Consumer: N-vinylcaprolactam is used as a reactive diluent for UV-coatings, -inks and -adhesives as well as a building block for synthesis of paper coatings and will be almost exclusively incorporated into the polymer matrix within consumer products. Therefore, due to the extremely low levels of residual monomer present in consumer products, exposure and subsequent risk is unlikely.
Worker: In industrial settings, N-vinylcaprolactam is manufactured and handled primarily in closed processes which limit exposure. Based on good manufacturing processes and industrial hygiene the occupational health risk associated with N-vinylcaprolactam is low.
Environmental Exposures: N-vinylcaprolactam is inherently biodegradable and has low potential for bioaccumulation. It is soluble in water and has low potential for volatilization. Based on its physical and chemical properties, if n-vinyl caprolactam was released into the environment, it is expected to partition between water and soil. Volatilization from water surfaces is not expected.

Purification Methods

Distil it under vacuum and with 0.0015% of 4-tert-butylcatechol as stabilizer. [Beilstein 21 III/IV 3207.]

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