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
378380
Silicone oil
viscosity 500 cSt (25 °C)
About This Item
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Product Name
Silicone oil, viscosity 500 cSt (25 °C)
vapor density
>1 (vs air)
vapor pressure
<5 mmHg ( 25 °C)
5 mmHg ( 20 °C)
form
viscous liquid
refractive index
n20/D 1.403 (lit.)
viscosity
500 cSt(25 °C)
bp
>140 °C/0.002 mmHg (lit.)
density
0.97 g/mL at 25 °C
Quality Level
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Related Categories
1 of 4
This Item | 378364 | 378402 | 378399 |
|---|---|---|---|
| refractive index n20/D 1.403 (lit.) | refractive index n20/D 1.403 (lit.) | refractive index n20/D 1.403 (lit.) | refractive index n20/D 1.403 (lit.) |
| viscosity 500 cSt(25 °C) | viscosity 100 cSt(25 °C) | viscosity 10,000 cSt(25 °C) | viscosity 1,000 cSt(25 °C) |
| form viscous liquid | form viscous liquid | form viscous liquid | form viscous liquid |
| density 0.97 g/mL at 25 °C | density 0.96 g/mL at 25 °C | density 0.971 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) |
Application
General description
Storage Class
10 - Combustible liquids
wgk
WGK 1
flash_point_f
214.0 °F - closed cup
flash_point_c
101.1 °C - closed cup
ppe
Eyeshields, Gloves
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How can I determine the shelf life / expiration / retest date of this product?
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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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How do you measure the viscosties of your products? especially, silicone oils. which instrument or method do you use?
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The method to determine viscosity is product specific. For this product (378380) the supplier reports viscosity by Brookfield method.
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