Basic information
- Name:
Kaolin
- CAS No.:
1332-58-7
- Molecular Structure:
- Formula:
- Al2O3.2SiO2.2H2O
- Molecular Weight:
- 258.16
- Deleted CAS:
- 12198-85-5|12199-11-0|190086-05-6|290817-34-4|39406-22-9|52624-41-6|849104-81-0|903527-69-5|95077-05-7
- Synonyms:
- ASP (mineral);ASP Ultrafine;AA Kaolin;Acidic white clays;Airflo V 8;Alfaplate;Amazon Kaolin 855D;
- EINECS:
- 265-064-6
- Density:
- 2.6 g/cm3
- Melting Point:
- 1750 °C
- Appearance:
- off-white powder
- Safety Description:
- 22-24/25 Details
- Occurrence:
- Southeastern U.S., England, France.
Famous Chemical Enterprises
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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
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.
Production method 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 this chemical: 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 this chemical, please be cautious about it as the following: Do not breathe dust. Avoid contacting with skin and eyes.