This product is supplied non-sterile. However, it is autoclavable. Please note the emulsion may turn into gel at high heat but should return to normal fluidity once cooled.
A5757
Antifoam B Emulsion
aqueous-silicone emulsion
Synonym(s):
Antifoaming agent B
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About This Item
NACRES:
NA.25
UNSPSC Code:
12161900
Pricing and availability is not currently available.
Quality Segment
form
emulsion
contains
emulsifier (different from those present in Antifoam A emulsion)
technique(s)
cell culture | hybridoma: suitable, microbiological culture: suitable
viscosity
400 cP
density
1.01 g/mL
General description
Antifoam eliminates excessive foaming formed during impingement, due to proteins and/or carbohydrates in the collection medium. Antifoam B emulsion is a silicone based antifoam. Antifoam B emulsion does not affect the growth of bacteria. Antifoam B emulsion functions as an antifoaming agent in shake flask culture of bacteria.
Application
Antifoam B emulsion has been used:
- to enhance collection efficiency in collection media
- as a component in stress granule lysis buffer to reduce foaming, in host cell lysis buffer to reduce foaming caused by detergents
- to improve solubility of antibiotics
- as a foaming controls in bacterial growth media
Other Notes
A 10% aqueous emulsion of polydimethylsiloxane
1 of 1
This Item | |||
|---|---|---|---|
| form emulsion | form suspension | form emulsion (aqueous) | form emulsion (aqueous) |
| technique(s) cell culture | hybridoma: suitable, microbiological culture: suitable | technique(s) cell culture | hybridoma: suitable, microbiological culture: suitable | technique(s) cell culture | hybridoma: suitable, microbiological culture: suitable | technique(s) cell culture | hybridoma: suitable |
| viscosity 400 cP | viscosity 400 cP | viscosity - | viscosity - |
| density 1.01 g/mL | density 1.01 g/mL | density 0.97 g/mL at 25 °C | density 1.0 g/mL at 25 °C |
| Quality Level 200 | Quality Level 200 | Quality Level 200 | Quality Level 200 |
| contains emulsifier (different from those present in Antifoam A emulsion) | contains emulsifier | contains - | contains - |
Storage Class
10 - Combustible liquids
wgk
WGK 3
flash_point_f
>214.0 °F - closed cup
flash_point_c
> 101.1 °C - closed cup
signalword
Danger
hcodes
Hazard Classifications
Aquatic Chronic 2 - PBT - vPvB
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Global Trade Item Number
| SKU | GTIN |
|---|---|
| A5757-250ML | 04061837596087 |
| A5757-500ML | 04061837596094 |
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Is the product autoclavable? Would it be autoclavable diluted in culture media, or is the product shipped sterile?
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How can I determine the shelf life / expiration / retest date of this product?
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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.pdfHelpful?
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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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