EMAIL THIS PAGE TO A FRIEND
A6426 Sigma-Aldrich

Antifoam 204

mixture of organic polyether dispersions

Purchase

Properties

Related Categories Anti-Foaming Agents, Antifoams, Biochemicals and Reagents, Detergents, Detergents A to M,
Quality Level   200
application(s)   microbiological culture: suitable
viscosity   400 cP(lit.)
density   1.01 g/cm3 at 25 °C (lit.)

Description

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{45)

Packaging

1 kg in poly bottle

100, 500 g in poly bottle

Other Notes

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

Safety & Documentation

Safety Information

RIDADR 
NONH for all modes of transport
WGK Germany 
WGK 3
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable

Documents

Certificate of Analysis (COA)

Please Enter a Lot Number

Certificate of Origin (COO)

Please Enter a Lot Number

pHast Pack
Protocols & Articles

Articles

Antifoams

A6426 Antifoam 204 A8311 Antifoam 204 (autoclaved) A5633 Antifoam A Concentrate A6582 Antifoam A Concentrate Molecular biology grade A5757 Antifoam B Emulsion A8011 Antifoam C Emulsion A5758 Antifoam...
Keywords: Antimicrobials, Culture media, Fermentation, Filtration, Molecular biology, Nucleic acid denaturation, Sample preparations, Separation

Peer-Reviewed Papers
15

References

Related Products

Technical Service:

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Bulk Ordering & Pricing:

Need larger quantities for your development, manufacturing or research applications?