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768375

Sigma-Aldrich

偶氮二异丁腈

12 wt. % in acetone

别名:

2,2′-偶氮(2-甲基丙腈) 溶液, α,α,′-偶氮异丁腈 溶液, AIBN 溶液

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About This Item

经验公式（希尔记法）:
C8H12N4
CAS号:
78-67-1
分子量:
164.21
MDL號碼:
MFCD00013808
分類程式碼代碼:
12162002
PubChem物質ID:
329767372
价格与库存信息目前不能提供

形狀

liquid

品質等級

100

濃度

12 wt. % in acetone

折射率

n20/D 1.368

密度

0.808 g/mL at 25 °C

儲存溫度

2-8°C

SMILES 字串

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 密鑰

OZAIFHULBGXAKX-VAWYXSNFSA-N

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一般說明

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.[1]

應用

  • Used as an initiator in the synthesis of highly cross-linked Poly(divinylbenzene) (PDVB) polymers.[2]
  • Used as an initiator in the polymerization process of 2-hydroxyethyl methacrylate (HEMA).[3]

特點和優勢

Decomposes unimolecularly at good rates without much variation from one solvent to another.[4]

象形圖

FlameExclamation mark
GHS02,GHS07

訊號詞

Danger

危險聲明

H225,H319,H336

危險分類

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

標靶器官

Respiratory system

安全危害

EUH044,EUH066

儲存類別代碼

3 - Flammable liquids

水污染物質分類（WGK）

WGK 2

閃點（°F）

1.4 °F

閃點（°C）

-17 °C

历史批次信息供参考:

分析证书(COA)

Lot/Batch Number
MKCV7360
MKCW6068
MKCV2187
MKCT4763
MKCS6928

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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)
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)
Selected radical azoinitiators in the synthesis of solvent-borne acrylic pressure-sensitive adhesives
Pabin-Szafko, B., Wisniewska, E., & Czech, Z.
Chemistry and Chemical Technology, 3(2), 101-106 (2009)
Seyed Javad Ahmadi et al.
Journal of hazardous materials, 175(1-3), 193-197 (2009-11-03)
UO(2)(2+) ion-imprinted polymer materials used for solid-phase extraction were prepared by copolymerization of a ternary complex of uranyl ions with styrene and divinyl benzene in the presence of 2,2'-azobisisobutyronitrile. The imprinted particles were leached by HCl 6M. Various parameters in
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Questions

1–3 of 3 Questions  

  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  3. Can I use AIBN in 12wt% acetone without recrystallization or distillation? (in case of polymerization)

    1 answer

    1. Product 768375 is a ready-to-use product, however, the performance varies owing to different polymerization reactions. It is recommended to check more reference papers:
      https://www.sigmaaldrich.com/search/768375?focus=papers&page=1&perpage=30&sort=relevance&term=768375&type=citation_search

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