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Merck

378348

Sigma-Aldrich

Silicone oil

viscosity 20 cSt (25 °C)

Sinónimos:

PDMS, Polydimethylsiloxane

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About This Item

Fórmula lineal:
[-Si(CH3)2O-]n
Número de CAS:
Número MDL:
Código UNSPSC:
12162002
NACRES:
NA.23
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densidad de vapor

>1 (vs air)

Nivel de calidad

presión de vapor

<5 mmHg ( 25 °C)
5 mmHg ( 20 °C)

Formulario

viscous liquid

índice de refracción

n20/D 1.403 (lit.)

viscosidad

20 cSt(25 °C)

bp

>140 °C/0.002 mmHg (lit.)

densidad

0.95 g/mL at 25 °C

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Silicone oil viscosity 20&#160;cSt&#160;(25&#160;°C)

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Silicone oil viscosity 1,000&#160;cSt&#160;(25&#160;°C)

378399

Silicone oil

viscosity

20 cSt(25 °C)

viscosity

10,000 cSt(25 °C)

viscosity

350 cSt(25 °C)

viscosity

1,000 cSt(25 °C)

form

viscous liquid

form

viscous liquid

form

viscous liquid

form

viscous liquid

density

0.95 g/mL at 25 °C

density

0.971 g/mL at 25 °C

density

0.968 g/mL at 25 °C

density

0.97 g/mL at 25 °C

vapor density

>1 (vs air)

vapor density

>1 (vs air)

vapor density

>1 (vs air)

vapor density

>1 (vs air)

vapor pressure

<5 mmHg ( 25 °C)

vapor pressure

<5 mmHg ( 25 °C), 5 mmHg ( 20 °C)

vapor pressure

<5 mmHg ( 25 °C), 5 mmHg ( 20 °C)

vapor pressure

<5 mmHg ( 25 °C), 5 mmHg ( 20 °C)

Descripción general

Silicone oil is a liquid based siloxane that is part of the methyl silicone fluid system. It has a viscosity of 20 cSt with a refractive index of ~ 1.4 and a dielectric strength of ~ 14 kV/mm. It′s surface tension tends to increase with an increase in the viscosity.[1]

Aplicación

Silicone oil can be used for a variety of usages such as lubricants,[2] antiflatulent agents,[3] dielectric coolants,[1] and cosmetic additives.[4]

Código de clase de almacenamiento

10 - Combustible liquids

Clase de riesgo para el agua (WGK)

WGK 1

Punto de inflamabilidad (°F)

214.0 °F - closed cup

Punto de inflamabilidad (°C)

101.1 °C - closed cup

Equipo de protección personal

Eyeshields, Gloves


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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

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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

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