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A5633

Antifoam A Concentrate

active silicone polymer 100 %

Synonym(s):

Silicone Antifoam Solution

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About This Item

NACRES:
NA.25
UNSPSC Code:
12161900
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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

density

(0.97 g/mL at 25 °C (77 °F))

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.

Preparation Note

1-50 ppm is adequate for most applications.

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pictograms

Environment
GHS09

Storage Class

10 - Combustible liquids

flash_point_f

>213.8 °F - closed cup

flash_point_c

> 101 °C - closed cup

ppe

Eyeshields, Gloves, type ABEK (EN14387) respirator filter

signalword

Danger

Hazard Classifications

Aquatic Acute 1 - Aquatic Chronic 1 - PBT - vPvB

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

556-67-2 + 541-02-6

CAS No.

541-02-6

CAS No.

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Certificates of Analysis (COA)

Lot/Batch Number
038K0032
117K0047
086K0072
127F0242
115H1195

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Nature Communications, 5, 5699-5699 (2014)
Foams and antifoams
Karakashev SI and Grozdanova MV
Advances in Colloid and Interface Science, 176, 1-17 (2012)
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Global Trade Item Number

SKUGTIN
A5633-100G04061833376171
A5633-25G04061833376188