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Merck

432369

Sigma-Aldrich

氢化二聚体酸

average Mn ~570

别名:

氢化C18不饱和脂肪酸二聚酸, 氢化C36二聚脂肪酸

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1 L
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About This Item

CAS号:
MDL编号:
UNSPSC代码:
12162002
NACRES:
NA.23

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表单

liquid

分子量

average Mn ~570

杂质

<1 wt. % monomer
<2 wt. % trimer

折射率

n20/D 1.477 (lit.)

粘度

8,000 mPa.s(25 °C)(lit.)

酸值

190‑198 mg KOH/g

碘值

<10

转变温度

pour point ~0 °C

密度

0.95 g/mL at 25 °C (lit.)

一般描述

提高聚合物柔性、韧性、抗冲击性、染色性和水解稳定性。
氢化二聚酸是含36个碳原子的脂肪酸。它由环己烯组成,可通过230-250°C下白土催化的二聚化反应合成。[1][2]

应用

氢化二聚酸可作为缓蚀剂保护铅金属基板。[3]它还可在聚酰胺热熔胶中使用,作为电子板、纺织和包装系统的热塑性聚合物。[4]
聚酯、聚酰胺和聚氨酯中的共聚单体。

储存分类代码

10 - Combustible liquids

WGK

WGK 1

闪点(°F)

572.0 °F - open cup

闪点(°C)

300 °C - open cup

个人防护装备

Eyeshields, Gloves


历史批次信息供参考:

分析证书(COA)

Lot/Batch Number

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Selective formation of C36-dimer fatty acids via thiol-ene addition for copolyamide synthesis
Unverferth M and Meier MAR
European Journal of Lipid Science and Technology, 118(10), 1470-1474 (2016)
Study of liquid-crystalline behaviour of aliphatic-aromatic polyamides derived from castor oil based dimer acid by DSC
Khare K, et al.
Indian Journal of Advances in Chemical Science, 2(1), 89-94 (2013)
Lower purity dimer acid based polyamides used as hot melt adhesives: synthesis and properties
Freitas RFR, et al.
Journal of Adhesion Science and Technology, 29(17), 1860-1872 (2015)
Hydrogenated dimer acid as a corrosion inhibitor for lead metal substrates in acetic acid
De Keersmaecker M, et al.
Journal of the Electrochemical Society, 162(4), C167-C179 (2015)

Questions

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  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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