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Base Information Edit
  • Chemical Name:Kaolin
  • CAS No.:1332-58-7
  • Molecular Formula:Al2O3.2SiO2.2H2O
  • Molecular Weight:258.16
  • Hs Code.:25070090
  • Mol file:1332-58-7.mol

Synonyms:Argilla;Kaoline;organically modified;Aluminum silicate hydroxide,Bolus,Hydrated aluminum si;CLAY;metahalloysite;Kaolin clay;Catalpo;Buca;Aluminum silicate hydroxide,Bolus,China clay;Kaolin(superfine);SP-33;BOLUS;REDCLAY;Kaowool;Aluminum silicate hydroxide,Bolus,Hydrated aluminum silicate;

Suppliers and Price of Kaolin
Supply Marketing:Edit
Business phase:
The product has achieved commercial mass production*data from LookChem market partment
Manufacturers and distributors:
  • Manufacture/Brand
  • Chemicals and raw materials
  • Packaging
  • price
  • Strem Chemicals
  • Aluminum silicate dihydrate, 98%
  • 2kg
  • $ 47.00
  • Strem Chemicals
  • Aluminum silicate dihydrate, 98%
  • 500g
  • $ 21.00
  • Sigma-Aldrich
  • Kaolin tested according to Ph.Eur.
  • 1kg
  • $ 134.00
  • Sigma-Aldrich
  • Kaolin meets USP testing specifications
  • 1kg
  • $ 131.00
  • Sigma-Aldrich
  • Kaolin heavy, powder
  • 5kg
  • $ 120.00
  • Sigma-Aldrich
  • Kaolin anhydrous, free-flowing, Redi-Dri
  • 1kg
  • $ 105.00
  • Sigma-Aldrich
  • Kaolin
  • 1kg
  • $ 98.50
  • Sigma-Aldrich
  • Kaolin anhydrous, free-flowing, Redi-Dri
  • 500g
  • $ 76.00
  • Sigma-Aldrich
  • Kaolin
  • 500g
  • $ 71.80
  • Sigma-Aldrich
  • Halloysite nanoclay
  • 100g
  • $ 70.20
Total 318 raw suppliers
Chemical Property of Kaolin Edit
Chemical Property:
  • Appearance/Colour:off-white powder 
  • Melting Point:1750 °C 
  • Refractive Index:1.6200 
  • PSA:114.43000 
  • Density:2.6 g/cm3 
  • LogP:-1.34560 
  • Storage Temp.:Storage temperature: no restrictions. 
  • Solubility.:Practically insoluble in diethyl ether, ethanol (95%), water, other organic solvents, cold dilute acids, and solutions of alkali hydroxides. 
  • Water Solubility.:insoluble H2O, dilute acids and alkali hydroxides [HAW93] 

99% *data from raw suppliers

Aluminum silicate dihydrate, 98% *data from reagent suppliers

Safty Information:
  • Pictogram(s): Xn 
  • Hazard Codes:Xn 
  • Safety Statements: 22-24/25 
MSDS Files:

SDS file from LookChem

Total 1 MSDS from other Authors

  • Overview Referred to as the "White Gold" due to its white rock color.
    Comprised predominantly of the mineral kaolinite, a hydrated aluminum silicate.
    Used in various industrial applications due to its physical and chemical properties.
  • Paper Industry Important application in coating and filling paper to improve smoothness, brightness, glossiness, opacity, and printability.
  • Paint Industry Utilized as a significant pigment in paint formulations.
  • Ceramics Used in various ceramic products including dinnerware, sanitaryware, tile, electrical porcelain, pottery, and refractories.
  • Rubber and Plastics Acts as a reinforcing agent and filler in rubber and plastics, improving surface finish, reducing cracking and shrinkage, enhancing thermal stability, and controlling flow properties.
  • Inks Used to improve ink holdout and extend pigments in ink formulations.
  • Catalysts A major component in the manufacture of carriers for catalysts, particularly in catalytic cracking of petroleum.
  • Fiberglass An essential component in fiberglass production, with applications in insulation, reinforcement of plastics, textile yarn, electronic circuit board substrates, paper, cloth, and roofing shingles.
  • Cement Provides alumina and silica in cement production, contributing to whiteness and other properties.
  • Geopolymers Used in the manufacture of geopolymers, with calcined kaolin (metakaolin) being a thermally treated product suitable for this purpose.
  • Acidity and Surface Characteristics The Kaolin surface is acidic but becomes largely neutralized in the presence of water.
  • Geological Significance Kaolin and kaolinitic clays are indicative of near-surface continental environments. Found in various fluvial drainage systems, especially braided-stream systems.
  • Portland Cement Historically used in the production of Portland cement, with kaolin transformed into metakaolin through calcination.
  • Synthesis of 纬-Alumina Metakaolin derived from kaolin can be used to synthesize 纬-alumina powder through chemical processes.
Technology Process of Kaolin

There total 2 articles about Kaolin which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:
Guidance literature:
In water; High Pressure; phillipsite and an aq. soln. of AlCl3 is encapsulated in a gold bomb, heating to 300°C at a pressure of 30 MPa for 4 weeks, quenching to room temp.; XRD;
Guidance literature:
In neat (no solvent); byproducts: H2O; heating up to 1050°C; XRD;
upstream raw materials:

aluminium trichloride

Downstream raw materials:

Al0.2N1.8O1.2Si1.8, low temperature

silica gel

Refernces Edit
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