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Merck
CN
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文件

A5758

Sigma-Aldrich

消泡剂Y-30乳液

aqueous-silicone emulsion

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About This Item

UNSPSC代码:
12161900

质量水平

200

形式

emulsion

包含

emulsifier

一般描述

消泡剂Y-30乳液是含有30％活性硅的水性乳液。它含有的非离子乳化剂与消泡乳液B和C不同。它专用于控制含水体系中的泡沫。
消泡剂又称为去沫剂。它是一种化学添加剂，可减少和阻碍工业过程液体中泡沫的形成。它被用于防止形成泡沫或破坏已经形成的泡沫。

应用

消泡剂Y-30乳液适用于以下应用：
  • 恒化培养。
  • 培养条件，如补料分批发酵。
  • （所有气溶胶实验采用的）细菌菌株和生长条件。

其他说明

消泡剂A浓缩液的30％水乳液。

联系

在含水体系中的分散性比消泡剂A浓缩液更好。

WGK

WGK 3

闪点(°F)

Not applicable

闪点(°C)

Not applicable

个人防护装备

Eyeshields, Gloves, type ABEK (EN14387) respirator filter

分析证书(COA)

输入产品批号来搜索 分析证书(COA) 。批号可以在产品标签上"批“ （Lot或Batch）字后找到。

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  1. Which document(s) contains shelf-life or expiration date information for a given product?

    If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.

  2. How do I get lot-specific information or a Certificate of Analysis?

    The lot specific COA document can be found by entering the lot number above under the "Documents" section.

  3. How do I find price and availability?

    There are several ways to find pricing and availability for our products. Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote.  USA customers:  1-800-325-3010 or view local office numbers.

  4. What is the Department of Transportation shipping information for this product?

    Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product. 

  5. Has there been a name change for Antifoam Y-30 Emulsion, Product A5758?

    Yes. The product was formerly listed under the name "Antifoam A Emulsion".  Although there has been a name change, there is no change in the composition of the antifoam. It is the same product.

  6. What is Antifoam Y-30 emulsion?

    Antifoam Y-30 emulsion,a Dow-Corning product, is a 30% active silicone emulsion, whose usage is intended for controlling foam in aqueous systems. The composition of the antifoam is considered proprietary by the manufacturer.  However, the emulsifier type is described as nonionic.

  7. How can Product No. A5758, Antifoam Y-30 Emulsion be used?

    This antifoam can be diluted with water. It is effective at low concentrations (1-100 ppm is the usual range to use). Trials can start at 50 ppm (active silicone), and amounts may be reduced to where the level of foam control is desired. The product should be agitated before use.

  8. Can Antifoam Y-30 Emulsion, Product A5758, be autoclaved?

    Dow Corning® does not recommend that the emulsion be autoclaved since autoclaving can adversely affect the product.  

  9. What is the difference between product A5758, Antifoam Y-30 emulsion and product A6457?

    Product A6457, a molecular biology reagent, has been function-tested by Sigma for use in bacterial fermentation. Product A5758 has not been tested in this application by Sigma.

  10. My question is not addressed here, how can I contact Technical Service for assistance?

    Ask a Scientist here.

Sarah J Routledge et al.
Methods in molecular biology (Clifton, N.J.), 866, 87-97 (2012-03-29)
Pichia pastoris is a widely used host for recombinant protein production. The foaming associated with culturing it on a large scale is commonly prevented by the addition of chemical antifoaming agents or "antifoams." Unexpectedly, the addition of a range of
Adrien Pagnier et al.
Proceedings of the National Academy of Sciences of the United States of America, 113(1), 104-109 (2015-12-25)
The synthesis and assembly of the active site [FeFe] unit of [FeFe]-hydrogenases require at least three maturases. The radical S-adenosyl-l-methionine HydG, the best characterized of these proteins, is responsible for the synthesis of the hydrogenase CO and CN(-) ligands from
Divey Saini et al.
Tuberculosis (Edinburgh, Scotland), 92(2), 160-165 (2011-12-27)
A murine low dose (LD) aerosol model is commonly used to test tuberculosis vaccines. Doses of 50-400 CFU (24h lung CFU) infect 100% of exposed mice. The LD model measures progression from infection to disease based on organ CFU at
N Meinander et al.
Microbiology (Reading, England), 142 ( Pt 1), 165-172 (1996-01-01)
Recombinant Saccharomyces cerevisiae harbouring the xylose reductase (XR) gene XYL1 from Pichia stipitis was grown in anoxic chemostat culture at two different dilution rates. At each dilution rate a transient experiment, encompassing a shift in the sugar content of the
Mehmedalija Jahic et al.
Microbial cell factories, 2(1), 6-6 (2003-07-23)
BACKGROUND: A temperature limited fed-batch (TLFB) technique is described and used for Pichia pastoris Mut+ strain cultures and compared with the traditional methanol limited fed-batch (MLFB) technique. A recombinant fusion protein composed of a cellulose-binding module (CBM) from Neocallimastix patriciarum
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