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378380

Sigma-Aldrich

硅油

viscosity 500 cSt (25 °C)

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About This Item

线性分子式:
[-Si(CH3)2O-]n
CAS号:
63148-62-9
MDL编号:
MFCD00132673
UNSPSC代码:
12162002
NACRES:
NA.23
价格与库存信息目前不能提供

蒸汽密度

>1 (vs air)

质量水平

200

蒸汽压

<5 mmHg ( 25 °C)
5 mmHg ( 20 °C)

表单

viscous liquid

折射率

n20/D 1.403 (lit.)

粘度

500 cSt(25 °C)

沸点

>140 °C/0.002 mmHg (lit.)

密度

0.97 g/mL at 25 °C

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相关类别

一般描述

硅油是一种液体基硅氧烷，其是甲基硅油体系的一部分。它的粘度为500 cSt，并取决于链长分布。折射率约为1.402，介电强度约为14 kV/mm。随着粘度的增加，它的表面张力也会趋于增加。 [1]

应用

硅油可用于多种应用，例如：化工和石化行业中的传热介质、介电冷却剂、润滑剂和抗气胀剂[1]、建筑材料保护涂层[2]、化妆品添加剂。[3]

储存分类代码

10 - Combustible liquids

WGK

WGK 1

闪点(°F)

214.0 °F - closed cup

闪点(°C)

101.1 °C - closed 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
MKCX2254
MKCT1050
MKCV1858
MKCT8549
MKCR8226

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Silicones
Moretto H, et al.
Ullmann's Encyclopedia of Industrial Chemistry (2000)
Recent developments and applications of protective silicone coatings: A review of PDMS functional materials
Eduok U, et al.
Progress in Organic Coatings, 111, 124-163 (2017)
Mechanism of Stabilization of Silicone Oil- Water Emulsions Using Hybrid Siloxane Polymers
Mehta SC and Somasundaran P
Langmuir, 24(9), 4558-4563 (2008)
Karthik R Balakrishnan et al.
Lab on a chip, 13(7), 1302-1307 (2013-02-07)
Resistive-pulse sensing (RPS), which is based on measuring the current pulse produced when a single particle transits a pore or channel, is an extremely versatile technique used to determine the size and concentration of cells and viruses and to detect
Yuwei Liu et al.
Langmuir : the ACS journal of surfaces and colloids, 29(9), 2897-2905 (2013-02-12)
Poly(dimethylsiloxane) (PDMS) materials have been extensively shown to function as excellent fouling-release (FR) coatings in the marine environment. The incorporation of biocide moieties, such as quaternary ammonium salts (QAS), can impart additional antibiofouling properties to PDMS-based FR coating systems. In
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Questions

1–3 of 3 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

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  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?

  3. How do you measure the viscosties of your products? especially, silicone oils. which instrument or method do you use?

    1 answer

    1. The method to determine viscosity is product specific. For this product (378380) the supplier reports viscosity by Brookfield method.

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