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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
0000396499
0000396499
0000283117
0000248901
0000231849

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Questions

1–6 of 6 Questions  

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

    1 answer

    1. This product does not require activation.

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  3. 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.

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  4. 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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  5. 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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  6. 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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