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A6426

Sigma-Aldrich

Antifoam 204

mixture of organic polyether dispersions

Synonym(s):

organic antifoam

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About This Item

MDL number:
MFCD00130523
UNSPSC Code:
12161900
NACRES:
NA.25

biological source

synthetic

Quality Level

200

form

liquid

technique(s)

microbiological culture: suitable

viscosity

400 cP(lit.)

density

1.01 g/cm3 at 25 °C (lit.)

storage temp.

room temp

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General description

Antifoam function as an effective foam suppressor. Antifoam 204 contains 100% active components and is a mixture of organic non-silicone polypropylene-based polyether dispersions. It does not contain mineral oil. Antifoam 204 can itself be considered a surfactant, but it contains no other surfactants. This product is synthetic and not derived from animal or plant sources. Antifoam 204 can be sterilized repeatedly. The flow properties of Antifoam 204 are such that it can be pumped to a fermenter on an as-needed basis. For use in microbiological media, Sigma recommends a starting concentration of between 0.005% and 0.01%.

Application

Antifoam 204 has been used:

  • to suppress bubbling in thylakoid solutions during intramembrane isoprene quantification
  • as a component of fed-batch continuous culture fermentation medium
  • to suppress severe foaming in fermenter

Features and Benefits

  • Highly versatile surfactant for your cell biology and biochemical research
  • Suitable for microbiological culture

Other Notes

Contains 100% active components and is a mixture of non-silicone organic defoamers in a polyol dispersion. Can be sterilized repeatedly.
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Storage Class Code

10 - Combustible liquids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

JAN Code

A6426-100G:
A6426-BULK:
A6426-VAR:
A6426-1KG:
A6426-500G:

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Certificates of Analysis (COA)

Lot/Batch Number
MKCW0198
MKCS3271
MKCW1189
MKCW1187
MKCW1188

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