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295086

Sigma-Aldrich

反式-2-丁烯

≥99%

别名:

β-反式丁烯, (2E)-2-丁烯, (E)-2-丁烯, 2-trans-丁烯, 2-反式丁烯, E-丁烯, 反丁烯, 反式-1,2-二甲基乙烯, 反式-2-丁烯

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About This Item

线性分子式:
CH3CH=CHCH3
CAS号:
624-64-6
分子量:
56.11
Beilstein:
1718756
EC 号:
210-855-3
MDL编号:
MFCD00064458
UNSPSC代码:
12142100
PubChem化学物质编号:
24857756
NACRES:
NA.22
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蒸汽密度

2 (vs air)

质量水平

100

蒸汽压

2575 mmHg ( 37.7 °C)

方案

≥99%

自燃温度

615 °F

expl. lim.

9.7 %

沸点

1 °C (lit.)

mp

−105 °C (lit.)

SMILES字符串

CC=CC

InChI

1S/C4H8/c1-3-4-2/h3-4H,1-2H3/b4-3+

InChI key

IAQRGUVFOMOMEM-ONEGZZNKSA-N

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应用

反式-2-丁烯可用作单体单元，通过镍催化聚合反应产生具有既定微观结构的高分子量聚烯烃。也可用作异构化反应中的反应物，使用酸活化催化剂产生对应异构体。[1][2]

包装

以Sure/Pac™ 气瓶供货，并具有配备 1/4" NPTF出口外螺纹的青铜针阀。在使用气瓶前，务必确保阀门是关闭的，然后取下密封出口阀的镀锌钢六角螺帽。

兼容以下设备:

法律信息

Aldrich is a registered trademark of Sigma-Aldrich Co. LLC
Sure/Pac is a trademark of Sigma-Aldrich Co. LLC

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象形图

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GHS02,GHS04

警示用语：

Danger

危险声明

H220,H280

预防措施声明

P410 + P403

危险分类

Flam. Gas 1 - Press. Gas Liquefied gas

储存分类代码

2A - Gases

WGK

WGK 3

闪点(°F)

-4.0 °F - closed cup

闪点(°C)

-20 °C - closed cup

个人防护装备

Eyeshields, Faceshields, Gloves

历史批次信息供参考:

分析证书(COA)

Lot/Batch Number
SHBR5115
SHBR3873
SHBN7628
STBJ2480
SHBL3891

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Ni (II)-catalyzed polymerization of trans-2-butene
Leatherman MD and Brookhart M
Macromolecules, 34(9), 2748-2750 (2001)
Isomerization of cis-2-butene and trans-2-butene catalyzed by acid-and ion-exchanged smectite-type clays
Moronta A, et al.
Applied Clay Science, 29(2), 117-123 (2005)
Robert R Arnts
Environmental science & technology, 42(20), 7663-7669 (2008-11-06)
The continuous addition of trans-2-butene to air containing ozone-reactive volatile and semivolatile organic compounds prior to sampling on Tenax-TA adsorbent was found to be an effective means of removing ozone and reducing analyte losses of ozone reactive biogenic volatile organic
Ollie M Gonzalez-James et al.
Journal of the American Chemical Society, 134(4), 1914-1917 (2012-01-11)
An unusual intramolecular kinetic isotope effect (KIE) in the reaction of dichloroketene with cis-2-butene does not fit with a simple asynchronous cycloaddition transition state, but it can be predicted from trajectory studies on a bifurcating energy surface. The origin of
Franz Worek et al.
Archives of toxicology, 86(9), 1379-1386 (2012-03-23)
The reactivation of organophosphorus compound (OP)-inhibited acetylcholinesterase (AChE) by oximes is inadequate in case of different OP nerve agents. This fact led to the synthesis of numerous novel oximes by different research groups in order to identify more effective reactivators.
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Questions

1–2 of 2 Questions  

  1. 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

      Helpful?

  2. 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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