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69866

Montmorillonite

K 10, powder

Synonym(s):

K-Catalyst

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Size/SKUAvailabilityPrice
100 g
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$61.10
1 kg
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$129.00

About This Item

CAS Number:
UNSPSC Code:
12352106
NACRES:
NA.22
EC Number:
215-288-5
MDL number:
Form:
powder

$61.10


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Quality Segment

form

powder

pH

3-4

SMILES string

[Si](=O)=O.[Si](=O)=O.[Si](=O)=O.[Si](=O)=O.[Al+3].[Al+3].[O-2].[O-2].[O-2].O

InChI

1S/2Al.4O2Si.H2O.3O/c;;4*1-3-2;;;;/h;;;;;;1H2;;;/q2*+3;;;;;;3*-2

InChI key

GUJOJGAPFQRJSV-UHFFFAOYSA-N

General description

Montmorillonite is a layered clay mineral (2:1 phyllosilicate) that belongs to a class of the smectite group. It is a naturally abundant material and is chemically modified by the cation-exchange method for the preparation of polymer nanocomposites.

Application

Montmorillonite has been used as:
  • A nanofiller to improve the mechanical properties of poly(vinyl alcohol) (PVA) film for potential usage in packaging applications.
  • A catalyst in the conversion of polar and non-polar algae oil lipids to biodiesel.


It can also be used:
  • As a nanofiller in the preparation of biopolymer based nanocomposites.
  • In the preparation of Fe3+-montmorillonite, a solid acid catalyst for the synthesis of xanthenedione derivatives.

Other Notes

Solid Lewis acid catalyst

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This Item
2815226990469907
description

K 10, powder

description

-

description

K 30

description

-

Quality Level

100

Quality Level

200

Quality Level

100

Quality Level

100

form

powder

form

powder

form

powder

form

powder

pH

3-4

pH

-

pH

2.8-3.8

pH

4-5


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Storage Class

11 - Combustible Solids

WGK

WGK 3

Flash Point (°F)

Not applicable

Flash Point (°C)

Not applicable

PPE (personal protective equipment)

Eyeshields, Gloves, type N95 (US)



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Certificates of Analysis (COA)

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Questions

1–7 of 7 Questions  
  1. what is the average particle diameter for Montmorillonite, K 10, powder (69866)? Do you have any Montmorillonite powder of 0.01micrometer to 5 Micrometer?

    1 answer
    1. The particle size of this material is not tested on a lot to lot basis. Historical data indicates that 80 - 90% are < 68 um. Currently, a Montmorillonite product with 0.01 - 5.0 um particle size is not available.

      Helpful?

  2. Is montmorillonite K10 product number 69866 a pure clay mineral or a montmorillonite-rich clay?

    1 answer
    1. This product is an acid-activated montmorillonite clay grade and should be treated as a montmorillonite-based clay material rather than a pure clay mineral form.

      Helpful?

  3. 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/418/501/product-dating-information-06-25-mk.pdf

      Helpful?

  4. Is this a organo nanoclay? if yes, what was the relevant change promoted in Montmnorillonite? the d-spacing was increased?

    1 answer
    1. This product is an acid-activated clay, not an organo nanoclay.

      Helpful?

  5. Can this be used as a nucleating agent? If yes, is there a size associated with the particles?

    1 answer
    1. Dry sieve residue 63 μm is between 10 - 22 % for this product. Usage of this item is predominantly reported for organic synthesis as a solid lewis acid catalyst or nanofiller. Consult specific research to determine if the material has been used for a similar application. A couple of articles that may be of potential interest to you are defined below.

      https://link.springer.com/article/10.1023/A:1024981914234

      https://pmc.ncbi.nlm.nih.gov/articles/PMC10965523/

      Helpful?

  6. 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?

  7. Could you please provide me with the CEC of your montmorillonite nanoclays?

    1 answer
    1. Among the Montmorillonite products listed, there is essentially no distinction in terms of Cation Exchange Capacity (CEC, reported in terms of milliequivalents per 100 grams of material). For Montmorillonite K10 (Products 69866 and 281522), the CEC has been variously reported as either 30-40 meq/100g or just 30 meq/100g. And for Montmorillonite K30 (Prodct 69904), the CEC has been reported as 30 meq/100g.

      Helpful?

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