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Merck

43216

Supelco

十二甲基环己基硅氧烷

analytical standard

别名:

2,2,4,4,6,6,8,8,10,10,12-十二甲基环己基硅氧烷

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25 MG
$130.00

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25 MG
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About This Item

经验公式(希尔记法):
C12H36O6Si6
CAS号:
分子量:
444.92
EC 号:
MDL编号:
UNSPSC代码:
77101502
PubChem化学物质编号:
NACRES:
NA.24

$130.00


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等级

analytical standard

质量水平

方案

≥97.0% (GC)

保质期

limited shelf life, expiry date on the label

技术

HPLC: suitable
gas chromatography (GC): suitable

应用

cleaning products
cosmetics
environmental
food and beverages
personal care

包装形式

neat

SMILES字符串

[Si]1(O[Si](O[Si](O[Si](O[Si](O[Si](O1)(C)C)(C)C)(C)C)(C)C)(C)C)(C)C

InChI

1S/C12H36O6Si6/c1-19(2)13-20(3,4)15-22(7,8)17-24(11,12)18-23(9,10)16-21(5,6)14-19/h1-12H3

InChI key

IUMSDRXLFWAGNT-UHFFFAOYSA-N

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一般描述

十二甲基环六硅氧烷属于环状挥发性甲基硅氧烷,它是一种强效在的环境污染物,主要存在于生物群(biota)、生物固体样品、土壤、沉积物样品、废水中。[1]这些化合物既可用作家用产品、个人护理品、清洁剂中的香料载体或溶剂,又可用作制造有机硅聚合物的前体。[2]

应用

关于适当仪器技术的更多信息,请参考产品的检验报告。联系技术服务部提供进一步支持。
十二甲基环六硅氧烷可用作定量测定以下物质中分析物的分析参考标准:
  • 通过气相色谱和火焰电离检测(GC-FID)测定有机硅乳液。[3]
  • 通过气相色谱-质谱联用(GC-MS)法测定生物群(biota)[2]和废水样品[1]

储存分类代码

10 - Combustible liquids

WGK

WGK 3

闪点(°F)

195.8 °F - closed cup

闪点(°C)

91 °C - closed cup


历史批次信息供参考:

分析证书(COA)

Lot/Batch Number

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Determination of cyclic and linear siloxanes in wastewater samples by ultrasound-assisted dispersive liquid?liquid microextraction followed by gas chromatography?mass spectrometry
Cortada C, et al.
Talanta, 120, 191-197 (2014)
A practical gas chromatography flame ionization detection method for the determination of octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and dodecamethylcyclohexasiloxane in silicone emulsions
Brothers MH, et al.
Journal of Chromatography A, 144, 116-125 (2016)
A practical gas chromatography flame ionization detection method for the determination of octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and dodecamethylcyclohexasiloxane in silicone emulsions
Kierkegaard A, et al.
Analytical Chemistry, 82(22), 9573-9578 (2010)

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

      Helpful?

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