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K7375

Sigma-Aldrich

Kaolin

Sinónimos:

Aluminum silicate hydroxide, Bolus, Hydrated aluminum silicate

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About This Item

Fórmula lineal:
~Al2Si2O5(OH)4
Número de CAS:
1332-58-7
Número CE:
310-194-1
Número MDL:
MFCD00062311
Código UNSPSC:
11111803
NACRES:
NA.21
Formulario:
powder
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Formulario

powder

Nivel de calidad

200

pérdida

≤2.0% loss on drying

intervalo de pH

3.5-5.0(20% in water)

pH

3.5-5.0 (20% in water)

cadena SMILES

[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;;;;

Clave InChI

NLYAJNPCOHFWQQ-UHFFFAOYSA-N

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Descripción general

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]

Aplicación

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]

Otras notas

Go to Redi-Dri™ Product Listing 795453

Información legal

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

Código de clase de almacenamiento

11 - Combustible Solids

Clase de riesgo para el agua (WGK)

nwg

Punto de inflamabilidad (°F)

Not applicable

Punto de inflamabilidad (°C)

Not applicable

Equipo de protección personal

Eyeshields, Gloves, type N95 (US)

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Certificados de análisis (COA)

Lot/Batch Number
SCLQ3463
SCLQ3463
0000381804
0000346355
0000381804

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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)
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.
Thermodynamic and mechanical characterisation of kaolin clay.
Hammouda I and Mihoubi D.
Polish Journal of Chemical Technology, 16(1), 28-35 (2014)
Characterization and thermal behavior of kaolin.
Wang H, et al.
Journal of Thermal Analysis and Calorimetry, 105(1), 157-160 (2011)
Byung-Hak Kim et al.
British journal of pharmacology, 164(1), 106-118 (2011-03-26)
Many cytokines associated with autoimmune disorders and inflammation have been shown to activate the signalling kinase JAK3, implying that JAK3 plays key roles in the pathogenesis of these diseases. Therefore, investigating the alterations of JAK3 activity and the efficacy of
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Questions

1–3 of 3 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

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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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