MilliporeSigma
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A6426

Sigma-Aldrich

Antifoam 204

mixture of organic polyether dispersions

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Synonym(s):
organic antifoam
MDL number:
MFCD00130523
NACRES:
NA.25

Quality Level

200

form

liquid

technique(s)

microbiological culture: suitable

viscosity

400 cP(lit.)

density

1.01 g/cm3 at 25 °C (lit.)

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A6426

Antifoam 204

Sigma-Aldrich

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A8311

Antifoam 204

Antifoam SE-15 aqueous emulsion for bacterial and mammalian systems

Sigma-Aldrich

A8582

Antifoam SE-15

Antifoam A Concentrate active silicone polymer 100 %

Sigma-Aldrich

A5633

Antifoam A Concentrate

form

liquid

form

emulsion (aqueous)

form

emulsion (aqueous)

form

suspension

technique(s)

microbiological culture: suitable

technique(s)

-

technique(s)

cell culture | hybridoma: suitable

technique(s)

cell culture | mammalian: suitable, microbiological culture: suitable

viscosity

400 cP(lit.)

viscosity

-

viscosity

-

viscosity

-

density

1.01 g/cm3 at 25 °C (lit.)

density

1.01 g/mL at 25 °C

density

1.0 g/mL at 25 °C

density

-

Quality Level

200

Quality Level

200

Quality Level

200

Quality Level

200

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

Other Notes

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

Storage Class Code

10 - Combustible liquids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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