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K7375

Sigma-Aldrich

Kaolin

Sinónimos:

Aluminum silicate hydroxide, Bolus, Hydrated aluminum silicate

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500 G
$87.70
1 KG
$79.86
2.5 KG
$240.00

$87.70

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500 G
$87.70
1 KG
$79.86
2.5 KG
$240.00

About This Item

Fórmula lineal:
~Al2Si2O5(OH)4
Número de CAS:
1332-58-7
EC Number:
310-194-1
MDL number:
MFCD00062311
UNSPSC Code:
11111803
NACRES:
NA.21
form:
powder

$87.70

En stockDetalles

Este SKU también está disponible como grado equivalente en nuestra exclusiva línea de productos fluidos Redi-Dri™.
Solicitar un pedido a granel

form

powder

Quality Level

200

loss

≤2.0% loss on drying

pH range

3.5-5.0(20% in water)

pH

3.5-5.0 (20% in water)

SMILES string

[Si](=O)(O[Si](=O)O[Al]=O)O[Al]=O.O.O

InChI

1S/2Al.O5Si2.2H2O.2O/c;;1-6(2)5-7(3)4;;;;/h;;;2*1H2;;/q2*+1;-2;;;;

InChI key

NLYAJNPCOHFWQQ-UHFFFAOYSA-N

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General description

Kaolin is hydrated aluminum silicate. Its water sorption isotherms, desorption isotherms, desorption enthalpy and entropy have been determined.[1] The impact of its addition to styrene-butadiene rubber composites has been investigated.[2] The thermal degradation of kaolin has been analyzed.[3]

Application

Kaolin has been used:
  • For preparing synthetic turbid water that is employed to evaluate the biosorption capacity of Moringa oleifera leaves.
  • In combination with carrageenan to induce arthritic inflammation in a rat model for evaluating the activity of JAK3 (janus kinase 3) inhibitors.[4]
  • In a study to assess its utility for microparticle-enhanced cultivation (MPEC) of 2-phenylethanol and 6-pentyl-α-pyrone.[5]

Other Notes

Go to Redi-Dri™ Product Listing 795453

Legal Information

Redi-Dri is a trademark of Sigma-Aldrich Co. LLC

Storage Class

11 - Combustible Solids

wgk_germany

nwg

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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Certificados de análisis (COA)

Lot/Batch Number
SCLQ3463
SCLQ3463
0000381804
0000346355
0000340405

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The influence of kaolin and calcined kaolin on SBR composite properties.
Ahmed NM and El-Sabbagh SH.
Polymer Composites, 35(3), 570-580 (2014)
Thermodynamic and mechanical characterisation of kaolin clay.
Hammouda I and Mihoubi D.
Polish Journal of Chemical Technology, 16(1), 28-35 (2014)
Zandra Gerdes et al.
Scientific reports, 9(1), 10695-10695 (2019-07-25)
The occurrence of microplastic in the environment is of global concern. However, the microplastic hazard assessment is hampered by a lack of adequate ecotoxicological methods because of conceptual and practical problems with particle exposure. In the environment, suspended solids (e.g.
Characterization and thermal behavior of kaolin.
Wang H, et al.
Journal of Thermal Analysis and Calorimetry, 105(1), 157-160 (2011)
M M W Etschmann et al.
Yeast (Chichester, England), 32(1), 145-157 (2014-06-10)
Trichoderma atroviride IMI 206040 synthesizes the coconut lactone 6-pentyl-α-pyrone (6-PAP) de novo and Aspergillus niger DSM 821 produces the rose-like flavour compound 2-phenylethanol (2-PE) from the precursor l-phenylalanine. Here, microparticles of different chemical composition and nominal particle diameter in the
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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

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  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

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  3. I need to know the particle size of this reagent. Thanks

    1 answer

    1. The particle size range is 0.1 - 4 microns.

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