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Sigma-Aldrich

LUDOX ® HS-30 胶态二氧化硅

30 wt. % suspension in H2O

同義詞:

二氧化硅 制备

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About This Item

線性公式:
SiO2
CAS號碼:
7631-86-9
分子量：:
60.08
MDL號碼:
MFCD00011232
分類程式碼代碼:
12352309
PubChem物質ID:
24866354
NACRES:
NA.22
暫時無法取得訂價和供貨情況

描述

colloidal

形狀

liquid

濃度

30 wt. % suspension in H2O

表面積

~220 m2/g

pH值

9.8

密度

1.21 g/mL at 25 °C

儲存溫度

room temp

SMILES 字串

O=[Si]=O

InChI

1S/O2Si/c1-3-2

InChI 密鑰

VYPSYNLAJGMNEJ-UHFFFAOYSA-N

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一般說明

LUDOX® HS-40 胶态二氧化硅是单分散胶态二氧化硅颗粒的分散体，粒径小于100 nm。 [1] 含钠稳定反离子。

應用

LUDOX® HS-40 胶态二氧化硅可用于：
  • 通过定向冷冻合成聚合物-无机纳米复合材料[2]
  • 由水热法合成 Y 型[3] 沸石和 A 型沸石纳米晶体的胶态悬浮液 [4]
  • 作为胶态二氧化硅污垢模型，研究膜的污垢问题[5]

法律資訊

LUDOX is a registered trademark of W.R. Grace & Co.-Conn.

儲存類別代碼

10 - Combustible liquids

水污染物質分類（WGK）

nwg

閃點（°F）

Not applicable

閃點（°C）

Not applicable

個人防護裝備

Faceshields, Gloves, Goggles, 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
MKCT6178
MKCL9013
MKCL5253
MKCK2461
MKCJ9377

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如果您需要一個特定的版本，您可以透過批號來尋找特定憑證。

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您可以在文件庫中找到最近購買的產品相關文件。

存取文件庫

Influence of membrane and colloid characteristics on fouling of nanofiltration membranes.
Boussu K, et al.
Journal of Membrane Science , 289(1-2), 220-230 (2007)
Aligned two-and three-dimensional structures by directional freezing of polymers and nanoparticles.
Zhang H, et al.
Testing, 4(10), 787-787 (2005)
Mechanisms underlying the effects of membrane fouling on the nanofiltration of trace organic contaminants.
Nghiem LD, et al.
Desalination, 250(2), 682-687 (2010)
Homogeneous polymer-zeolite nanocomposite membranes by incorporating dispersible template-removed zeolite nanocrystals.
Wang H, et al.
Journal of Materials Chemistry, 12(12), 3640-3643 (2002)
High silica zeolite Y nanocrystals by dealumination and direct synthesis.
Holmberg BA, et al.
Microporous and Mesoporous Materials : The Official Journal of the International Zeolite Association, 74(1-3), 189-198 (2004)
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Questions

1–3 of 3 Questions  

  1. 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?

  2. 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?

  3. What is the smallest size of the silica particles?

    1 answer

    1. The Ludox products have an average particle size range of 7nm to 22nm. Please see the Ludox product comparison table below:

      Helpful?

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