The active ingredient of the antifoams is a siliconebased polymer that has a molecular weight range of 3,200 to 16,500 Da. These products consist of particles ranging in size from 10 to 40 microns and can be removed by filtration.
The silicone-type antifoams are suspensions and must be agitated before a sample is taken from the container to insure representative sampling. In order to remove traces of these types of antifoam from glassware, wash the glassware in hot soapy water followed by an alcohol (isopropanol) wash or bleach.
Autoclaving may result in phase separation and may require remixing the emulsion. A different emulsifier is present in each of the Antifoam emulsions.
Antifoam emulsions B, C, and Y-30 contain preservatives to guard against microbial growth. Long-term storage of diluted material may diminish this antimicrobial effect and additional preservative may be required.
The active ingredient of the antifoams is a siliconebased polymer that has a molecular weight range of 3,200 to 16,500 Da. These products consist of particles ranging in size from 10 to 40 microns and can be removed by filtration.
The silicone-type antifoams are suspensions and must be agitated before a sample is taken from the container to insure representative sampling. In order to remove traces of these types of antifoam from glassware, wash the glassware in hot soapy water followed by an alcohol (isopropanol) wash or bleach.
Autoclaving may result in phase separation and may require remixing the emulsion. A different emulsifier is present in each of the Antifoam emulsions.
Antifoam emulsions B, C, and Y-30 contain preservatives to guard against microbial growth. Long-term storage of diluted material may diminish this antimicrobial effect and additional preservative may be required.