Skip to Content
Merck
All Photos(1)

Key Documents

View All Documentation

03584

Sigma-Aldrich

Kaolinite

natural

Synonym(s):

Aluminum silicate

Sign Into View Organizational & Contract Pricing
All Photos(1)

About This Item

Linear Formula:
Al2O3 · 2SiO2 · 2H2O
CAS Number:
1318-74-7
Molecular Weight:
258.16
EC Number:
215-286-4
MDL number:
MFCD00077645
UNSPSC Code:
12352106
PubChem Substance ID:
329747737
NACRES:
NA.22

form

powder

Quality Level

100

quality

natural

SMILES string

O=[Si]=O.O=[Al]O[Al]=O

InChI

1S/2Al.O2Si.3O/c;;1-3-2;;;

InChI key

HNPSIPDUKPIQMN-UHFFFAOYSA-N

Looking for similar products? Visit Product Comparison Guide

Application

Kaolinite can be used:
  • In the preparation of of polysialate polymers.
  • To prepare mullite composites by sintering kaolinite and alumina.
  • To synthesize microporous materials such as zeolite Linde Type A (LTA) and kaoline based silicoaluminophosphate (SAPO) molecular sieves.
  • In the synthesis of terbium pyridine-picolinate grafted kaoline, as a luminescent hybrid material.
  • As a filler and a coating pigment in the paper industry.

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

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
BCCK5067
BCCL1959
BCCJ1019
BCCG9754
BCCG1724

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Synthesis and characterisation of materials based on inorganic polymers of alumina and silica: sodium polysialate polymers.
Barbosa V F, et al.
International Journal of Inorganic Materials, 2(4), 309-317 (2000)
Nucleation and growth history of zeolite LTA synthesized from kaolinite by two different methods.
Rios C A, et al.
Applied Clay Science, 42(3-4), 446-454 (2009)
Synthesis, characterization and crystallization mechanism of SAPOs from natural kaolinite.
Wang T, et al.
Microporous and Mesoporous Materials : The Official Journal of the International Zeolite Association, 136(1-3), 138-147 (2010)
Engineered clay products for the paper industry.
Murray H H and Kogel J E
Applied Clay Science, 29(3-4), 199-206 (2005)
Alexander Incledion et al.
Biomolecules, 11(1) (2021-01-21)
Clays attributed to have medicinal properties have been used since prehistoric times and are still used today as complementary medicines, which has given rise to unregulated "bioceutical" clays to treat skin conditions. Recently, clays with antibacterial characteristics have been proposed
View All Related Papers

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service