Tomoe Engineering Co., Ltd.

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  4. Alumina Hydrate

Alumina Hydrate

Description

Filler for flame retardant

Description

Hydrated Alumina of Alcoa Chemicals finds wide applications.
Features
Hydrated alumina, also known as alumina trihydrate (Al(OH)3), is white crystalline powder. On heating to 200 , hydrated alumina decomposes into 66% alumina and 34% water. Since it decomposes endothermically, it is used as flame retardant filler in plastics.


Application

Hydrated alumina is a non-smoking, low toxicity halogen free flame retardant. When a properly loaded hydrated alumina/plastic compound is exposed to fire the hydrate begins to decompose endothermically into water and anhydrous alumina. The water acts as a heat sink, cooling the plastic and significantly slowing its degradation into combustible fuel. 
Hydrated alumina increases arc resistance and lowers arc tracking rate.
White hydrated alumina is separated from a sodium aluminate solution containing few organic matters.
 

Application

Flame retardant filler for plastics and papers
Artificial marble


Typical Properties

Inquiry

Industrial Materials Dept. Section-1
19F Osaki Bright Core,
5-15, Kitashinagawa 5-chome, Shinagawa-ku, Tokyo 141-0001, Japan
TEL:(3)3442-5145 FAX:(3)3442-5175

Fine Chemicals Dept. Section-1
19F Osaki Bright Core,
5-15, Kitashinagawa 5-chome, Shinagawa-ku, Tokyo 141-0001, Japan
TEL:(3)3442-5144 FAX:(3)3442-5175

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