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A5633

Sigma-Aldrich

消泡剂A浓缩

active silicone polymer 100 %

同義詞:

有机硅消泡液

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About This Item

分類程式碼代碼:
12161900
NACRES:
NA.25
暫時無法取得訂價和供貨情況

描述

100% active silicone polymer

品質等級

200

形狀

suspension

不包含

emulsifier

成份

active silicone polymer, 100%

技術

cell culture | mammalian: suitable
microbiological culture: suitable

相關類別

一般說明

消泡剂 A 浓缩款 是超有效的泡沫消除剂[1]，可用于水性和非水性体系。这一产品是100％活性有机硅聚合物，不含乳化剂。消泡剂 A 浓缩款通常在1-100 ppm时有效。消泡剂 A 浓缩款应使用​​3-10份丙二醇（水性）或植物油（非水性）缓慢混合，进行稀释。本产品在pH5-9范围内保持稳定。消泡剂 A 浓缩款可直接添加至发酵培养基中，但不建议根据需要将其泵入发酵罐。

應用

一种超有效泡沫消除剂，可用于水性和非水性体系。
消泡剂 A 浓缩款已用作卢里亚-贝尔塔尼（Luria Bertani）培养基的成分，用于质粒转化BL21（DE3）大肠杆菌细胞的生长。[2][3]这一产品也已用作制备气雾剂生成液的成分。[4]

重構

1-50 ppm适合于大多数应用。

象形圖

Environment
GHS09

訊號詞

Warning

危險聲明

H410

防範說明

P273 - P391 - P501

危險分類

Aquatic Acute 1 - Aquatic Chronic 1

儲存類別代碼

10 - Combustible liquids

水污染物質分類（WGK）

WGK 3

閃點（°F）

>213.8 °F - closed cup

閃點（°C）

> 101 °C - closed cup

個人防護裝備

Eyeshields, Gloves, type ABEK (EN14387) respirator filter

從最近期的版本中選擇一個：

分析證明 (COA)

Lot/Batch Number
MKCX2106
0000245207
0000245207
MKCW8303
0000245213

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Questions

1–3 of 3 Questions  

  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

      Helpful?

  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

      Helpful?

  3. Can antifoam A be autoclaved when added to oil or does it need to be added after oil is autoclaved

    1 answer

    1. Autoclaving may result in phase separation and may require remixing the emulsion. A different emulsifier is present in each of the Antifoam emulsions.

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