A5633

Antifoam A Concentrate

active silicone polymer 100 %

• Synonym(s): Silicone Antifoam Solution
• UNSPSC Code: 12161900
• NACRES: NA.25

Properties

• description: 100% active silicone polymer
• Quality Level: 200
• form: suspension
• does not contain: emulsifier
• composition: active silicone polymer, 100%
• technique(s): cell culture | mammalian: suitable; microbiological culture: suitable

Description

General description

Antifoam A Concentrate is an extremely effective foam suppressor for aqueous and non-aqueous systems. It is 100% active silicone polymer. No emulsifiers are present. Antifoam A Concentrate is typically effective at 1-100 ppm. Antifoam A Concentrate should be diluted with 3-10 parts of propylene glycol (aqueous) or vegetable oil (nonaqueous) with slow mixing. The product will be stable in the pH range of 5 to 9. Antifoam A Concentrate can be added directly to a fermentation medium, but it is not recommended that it be pumped to a fermenter on an as-needed basis.

Application

An extremely effective foam suppresser for use in aqueous and non-aqueous systems.

Antifoam A Concentrate has been used as a component of Luria Bertani culture medium for growth of BL21 (DE3) E. coli cells transformed with the plasmids. It has also been used as a constituent in the preparation of aerosol generation fluid.

Reconstitution

1-50 ppm is adequate for most applications.

Safety Information

• pictograms: GHS09
• signalword: Warning
• hcodes: H410
• pcodes: P273 - P391 - P501
• Hazard Classifications: Aquatic Acute 1 - Aquatic Chronic 1
• Storage Class: 10 - Combustible liquids
• wgk_germany: WGK 3
• flash_point_f: >213.8 °F - closed cup
• flash_point_c: > 101 °C - closed cup
• ppe: Eyeshields, Gloves, type ABEK (EN14387) respirator filter