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281522

Sigma-Aldrich

Montmorillonite K 10

Synonym(s):

MMT, MMT-K10, Montmorillonite, Montmorillonite KSF

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About This Item

CAS Number:
1318-93-0
EC Number:
215-288-5
MDL number:
MFCD00132796
UNSPSC Code:
12352106
NACRES:
NA.22
Pricing and availability is not currently available.

form

powder

Quality Level

200

surface area

220-270 m2/g

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

Application

Clay catalyst used in a microwave-assisted synthesis of pyrazoles from enaminones.[1]
Used for:
  • Support for catalysts
  • Preparation of clay nanopaper composites of nacre-like structure

Catalyst for:
  • Conversion of triose sugars with alcohols to alkyl lactates
  • Deprotection of ketone dimethylhydrazones

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
SDBB2463
0000396499
0000396499
0000248901
0000231849

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Questions

1–8 of 8 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 density of Montmorillonite K10?

    1 answer

    1. The density of this product has not been determined. However, the Safety Data Sheet indicates a bulk density of 300 - 370 kg/m³ for this material.

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  4. Does this clay require activation and how do i activate it?

    1 answer

    1. This product does not require activation.

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  5. Is MMT K10 is same with MMT clay

    1 answer

    1. Montmorillonite K 10 is a type of clay and is synonymous with MMT clay.

      Helpful?

  6. What is the size of a MMT k10 particle?

    1 answer

    1. The particle size of this product is not determined, however, it is expected to be >0.063 mm.

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  7. What is the cation exchange index of sodium-montmorillonite?

    1 answer

    1. The cation exchange capacity of this product is 30-40 meq/100gm. The is no 'index' reported.

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  8. What does the letter K10, k30 after Montmorillonite mean? What should I buy to use high-purity montmorillonite? ( Montmorillonite 뒤에 표기되어있는 k10, k30 이라는 글자는 무엇을 뜻합니까? 높은 순도의 montmorillonite 사용하려면 무엇을 구매해야 하나요? )

    1 answer

    1. K10 and K30 refers to the grade of Montmorillonite.

      In K10, the bentonite catalysts of the K series are acid activated and cation exchange capacity is only approx. 30 to 40 mVal/100g (compared to alkaline activated bentonites 70 - 100mVal/100g).

      In K30, the Catalyst K30 exhibits approximately 25µval of exchangeable metal ions whereas Ca, Al and Fe dominate.

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