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K7375

Sigma-Aldrich

Kaolin

Synonym(s):

Aluminum silicate hydroxide, Bolus, Hydrated aluminum silicate

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About This Item

Linear Formula:
~Al2Si2O5(OH)4
CAS Number:
1332-58-7
EC Number:
310-194-1
MDL number:
MFCD00062311
UNSPSC Code:
11111803
NACRES:
NA.21

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)

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. The impact of its addition to styrene-butadiene rubber composites has been investigated. The thermal degradation of kaolin has been analyzed.

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.
  • In a study to assess its utility for microparticle-enhanced cultivation (MPEC) of 2-phenylethanol and 6-pentyl-α-pyrone.

Other Notes

Go to Redi-Dri™ Product Listing 795453

Legal Information

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

Storage Class Code

11 - Combustible Solids

WGK

nwg

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
0000381804
0000346355
0000381804
0000325780
0000325779

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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)
Characterization and thermal behavior of kaolin.
Wang H, et al.
Journal of Thermal Analysis and Calorimetry, 105(1), 157-160 (2011)
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.
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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