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Kaolin

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Name

Kaolin

EINECS 265-064-6
CAS No. 1332-58-7 Density 2.6 g/cm3
Solubility Melting Point 1750 °C
Formula Al2O3.2SiO2.2H2O Boiling Point
Molecular Weight 258.16 Flash Point
Transport Information Appearance off-white powder
Safety 22-24/25 Risk Codes
Molecular Structure Molecular Structure of 1332-58-7 (Kaolin) Hazard Symbols
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;

 

Kaolin Standards and Recommendations

OSHA PEL: TWA Total Dust: 10 mg/m3; Respirable Fraction: 5 mg/m3
ACGIH TLV: TWA 2 mg/m3; Respirable Fraction; Not Classifiable as a Human Carcinogen

Kaolin Specification

This chemical is called Kaolin, and it's also named as Clay (kaolin). With the molecular formula of Al2O3.2SiO2.2H2O, its product categories are UVCBs-Inorganic; Cosmetic Ingredients & Chemicals. The CAS registry number of this chemical is 1332-58-7. Additionally, it's insoluble in water, ethanol, acid and alkali. Keep it in the cool and dry place where the room is ventilated.

Preparation of this chemical: Take crystalline rocks of granite, gneiss and ground them into a muddy, washing the sand and processing them with dilute inorganic acid. After repeated washing and dehydration from the more than 330 °C, you will finally get the Kaolin.

Uses of Kaolin: The Kaolin is used on porcelain and ceramics, refractories, coatings, optical glass, all kinds of electromagnetic insulator. It's also used in paper, rubber, plastics industry and manufacturing special ceramic. Moreover, it play a role of separation and purification for serum coagulation.

When you are using Kaolin, please be cautious about it as the following: Do not breathe dust. Avoid contacting with skin and eyes.

You can still convert the following datas into molecular structure:
(1)InChI=1S/2Al.O5Si2.2H2O.2O/c;;1-6(2)5-7(3)4;;;;/h;;;2*1H2;;/q2*+1;-2;;;;;
(2)InChIKey=NLYAJNPCOHFWQQ-UHFFFAOYSA-N;
(3)Smiles[SiH](=O)(O[SiH](=O)O[AlH]=O)O[AlH]=O.O.O;

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