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A6426

Sigma-Aldrich

Antifoam 204

mixture of organic polyether dispersions

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

biological source

synthetic

Quality Level

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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This Item
A5633A8311A8011
Sigma-Aldrich

Sigma-Aldrich

A6426

Antifoam 204

Antifoam A Concentrate active silicone polymer 100 %

Sigma-Aldrich

A5633

Antifoam A Concentrate

Sigma-Aldrich

Sigma-Aldrich

A8311

Antifoam 204

Antifoam C Emulsion aqueous-silicone emulsion

Sigma-Aldrich

A8011

Antifoam C Emulsion

form

liquid

form

suspension

form

emulsion (aqueous)

form

emulsion

technique(s)

microbiological culture: suitable

technique(s)

cell culture | mammalian: suitable, microbiological culture: suitable

technique(s)

-

technique(s)

cell culture | hybridoma: suitable, microbiological culture: suitable

viscosity

400 cP(lit.)

viscosity

-

viscosity

-

viscosity

-

density

1.01 g/cm3 at 25 °C (lit.)

density

-

density

1.01 g/mL at 25 °C

density

-

storage temp.

room temp

storage temp.

-

storage temp.

room temp

storage temp.

-

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.

Storage Class Code

10 - Combustible liquids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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