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Sigma-Aldrich

LUDOX® HS-40胶态氧化硅

40 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:
24866353
NACRES:
NA.22
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描述

colloidal

品質等級

100

形狀

viscous liquid

濃度

40 wt. % suspension in H2O

表面積

~220 m2/g

pH值

9.8

密度

1.3 g/mL at 25 °C

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硅溶胶可作为硅源，用于合成沸石、[1]硫酸方钠石(sulphate sodalite)和铝硅酸盐凝胶。[2]

應用

LUDOX® HS-40硅溶胶可用于：
  • 作为模板合成中孔材料[3]
  • 作为出色的粘合剂粘合催化剂，在不改变催化剂性质的前提下提高机械强度[4]
  • 作为基底增强沸石中的基底粘附力[5]
  • 用作氮掺杂碳(NMC)制备中的催化剂载体[6]

法律資訊

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

儲存類別代碼

12 - Non 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
SDBB3181
SDBB2068
STBK9021
STBK8909
STBK7723

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存取文件庫

Low temperature heat capacity and thermodynamic functions of anion bearing sodalites Na8Al6Si6O24X2 (X= SO4, ReO4, Cl, I)
J Schliesser, et al.
The Journal of Chemical Thermodynamics, 114, 14-24 (2017)
Synthesis of zeolite L. Tuning size and morphology.
Ruiz A Z, et al.
Monatshefte fur Chemie / Chemical Monthly, 136(1), 77-89 (2005)
Optimization of process parameters on the extrusion of honeycomb shaped monolith of H-ZSM-5 zeolite
A Aranzabal, et al.
Chemical Engineering Journal, 162, 415-423 (2010)
The effects of gel aging on the synthesis of NaY zeolite from colloidal silica.
Ginter D M, et al.
Zeolites, 12(6), 742-749 (1992)
Hydrogen production from formic acid dehydrogenation over a Pd supported on N-doped mesoporous carbon catalyst: A role of nitrogen dopant
Y Kim, et al.
Applied Catalysis A: General, 608, 117887-117887 (2020)
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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. 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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