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Merck
CN

768375

Azobisisobutyronitrile

12 wt. % in acetone

Synonym(s):

2,2′-Azobis(2-methylpropionitrile) solution, radical initiator, α,α,′-Azoisobutyronitrile solution, AIBN solution

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About This Item

Empirical Formula (Hill Notation):
C8H12N4
CAS Number:
Molecular Weight:
164.21
UNSPSC Code:
12162002
PubChem Substance ID:
MDL number:
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form

liquid

Quality Level

concentration

12 wt. % in acetone

refractive index

n20/D 1.368

density

0.808 g/mL at 25 °C

storage temp.

2-8°C

SMILES string

CC(C)(\N=N\C(C)(C)C#N)C#N

InChI

1S/C8H12N4/c1-7(2,5-9)11-12-8(3,4)6-10/h1-4H3/b12-11+

InChI key

OZAIFHULBGXAKX-VAWYXSNFSA-N

General description

Azobisisobutyronitrile (AIBN) is an azo-compound and is widely used as a free radical initiator. This compound has labile carbon-nitrogen covalent bond which undergoes homolytic scission under thermal, chemical or photochemical conditions producing free radicals. They are useful in many reactions like halogenation, polymerisation of vinyl monomers, grafting reactions, curing of rubbers and unsaturated polymers and cross-linking of polyolefins.

Application

  • Used as an initiator in the synthesis of highly cross-linked Poly(divinylbenzene) (PDVB) polymers.
  • Used as an initiator in the polymerization process of 2-hydroxyethyl methacrylate (HEMA).

Features and Benefits

Decomposes unimolecularly at good rates without much variation from one solvent to another.


pictograms

FlameExclamation mark

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Danger

Hazard Classifications

Eye Irrit. 2 - Flam. Liq. 2 - STOT SE 3

supp_hazards

Storage Class

3 - Flammable liquids

flash_point_f

1.4 °F

flash_point_c

-17 °C

target_organs

Central nervous system

Regulatory Information

监管及禁止进口产品

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Related Content

Photoinitiators convert light energy into chemical energy for initiating species formation in formulations, essential for various applications.


Biomaterials based on 2-hydroxyethyl methacrylate: the influence of the initiator type
Nita, L. E., Chiriac, A. P., Nistor, M. T., & Stoica, I.
Rev. Roum. Chim., 56(5), 537-543 (2011)
Initiator efficiency in radical polymerization
Walling, C.
Journal of Polymer Science, 14(74), 214-217 (1954)
Synthesis of highly cross-linked polymers in supercritical carbon dioxide by heterogeneous polymerization.
Cooper, A. I., Hems, W. P., & Holmes, A. B.
Macromolecules, 32(7), 2156-2166 (1999)



Global Trade Item Number

SKUGTIN
768375-100ML04061837817328
768375-500ML04061832924533