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/418/501/product-dating-information-06-25-mk.pdf
10836
Silicone oil
AR 20, viscosity ~20 mPa.s, neat(25 °C)
Synonym(s):
Poly(dimethylsiloxane-co-methylphenylsiloxane), Silicone fluid
Select a Size
| Size/SKU | Availability | Price |
|---|---|---|
100 mL | Check Cart for Availability | $96.80 |
500 mL | Check Cart for Availability | $327.00 |
About This Item
$96.80
Product Name
Silicone oil AR 20, viscosity ~20 mPa.s, neat(25 °C)
refractive index
n20/D 1.441-1.445
Quality Segment
viscosity
~20 mPa.s, neat(25 °C)
density
1.000-1.020 g/mL at 20 °C
General description
Application
Features and Benefits
1 of 1
This Item | |||
|---|---|---|---|
| description viscosity ~20 mPa.s, neat(25 °C) | description viscosity ~200 mPa.s, neat(25 °C) | description viscosity ~100 mPa.s, neat(25 °C) | description viscosity ~1000 mPa.s, neat(25 °C) |
| viscosity ~20 mPa.s, neat(25 °C) | viscosity ~200 mPa.s, neat(25 °C) | viscosity ~100 mPa.s, neat(25 °C) | viscosity ~1000 mPa.s, neat(25 °C) |
| Quality Level 200 | Quality Level 100 | Quality Level 100 | Quality Level 100 |
| density 1.000-1.020 g/mL at 20 °C | density 1.05 g/mL at 20 °C | density 0.995 g/cm3 | density 1.09 g/mL at 20 °C |
| refractive index n20/D 1.441-1.445 | refractive index n20/D 1.453 | refractive index n20/D 1.422 | refractive index n20/D 1.512 |
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Storage Class
10 - Combustible liquids
WGK
WGK 3
Flash Point (°F)
338.0 °F - Not applicable
Flash Point (°C)
170 °C - Not applicable
PPE (personal protective equipment)
Eyeshields, Gloves
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How can I determine the shelf life / expiration / retest date of this product?
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What is the upper temperature limit?
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The recommended working temperature range of this material is -50°C to +230°C. The performance at temperatures above 230°C has not been determined.
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What is the chemical structure of AR 20?
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The silicone oil AR 20 is Polyphenyl-methylsiloxane. The chemical structure can be viewed in the attached image.
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How is shipping temperature determined? And how is it related to the product storage temperature?
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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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Is this oil suitable for diffusion pump
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This product is a polydimethylsiloxane with phenyl groups that is commonly used as a heat transfer or pressure transfer fluid. Unfortunately, it hasn't been tested for diffusion pump applications.
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