A5633
Antifoam A Concentrate
active silicone polymer 100 %
Synonym(s):
Silicone Antifoam Solution
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About This Item
UNSPSC Code:
12161900
NACRES:
NA.25
description
100% active silicone polymer
Quality Level
form
suspension
does not contain
emulsifier
composition
active silicone polymer, 100%
technique(s)
cell culture | mammalian: suitable
microbiological culture: suitable
General description
Antifoam A Concentrate is an extremely effective foam suppressor for aqueous and non-aqueous systems. It is 100% active silicone polymer. No emulsifiers are present. Antifoam A Concentrate is typically effective at 1-100 ppm. Antifoam A Concentrate should be diluted with 3-10 parts of propylene glycol (aqueous) or vegetable oil (nonaqueous) with slow mixing. The product will be stable in the pH range of 5 to 9. Antifoam A Concentrate can be added directly to a fermentation medium, but it is not recommended that it be pumped to a fermenter on an as-needed basis.
Application
An extremely effective foam suppresser for use in aqueous and non-aqueous systems.
Antifoam A Concentrate has been used as a component of Luria Bertani culture medium for growth of BL21 (DE3) E. coli cells transformed with the plasmids. It has also been used as a constituent in the preparation of aerosol generation fluid.
Reconstitution
1-50 ppm is adequate for most applications.
Signal Word
Warning
Hazard Statements
Precautionary Statements
Hazard Classifications
Aquatic Acute 1 - Aquatic Chronic 1
Storage Class Code
10 - Combustible liquids
WGK
WGK 3
Flash Point(F)
>213.8 °F - closed cup
Flash Point(C)
> 101 °C - closed cup
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
Certificates of Analysis (COA)
Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.
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Resistance of aerosolized bacterial viruses to relative humidity and temperature
Verreault D, et al.
Applied and Environmental Microbiology, 81(20), 7305-7311 (2015)
Reduced IFN lambda 4 activity is associated with improved HCV clearance and reduced expression of interferon-stimulated genes
Terczynska DE, et al.
Nature Communications, 5, 5699-5699 (2014)
Foams and antifoams
Karakashev SI and Grozdanova MV
Advances in Colloid and Interface Science, 176, 1-17 (2012)
Interferon lambda 4 signals via the IFN$\lambda$ receptor to regulate antiviral activity against HCV and coronaviruses
Hamming OJ, et al.
The Embo Journal, 32(23), 3055-3065 (2013)
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