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Chemical Information Overview  |  Chemical Product  |  Chemical Raw Material  |  Chemical Company
Alcan Ultrafine UF11E
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Alumina trihydrate
21645-51-2
ALCAN ULTRAFINE and ULTRAFINE 'E' grades of alumina trihydrate are white crystalline powders with the chemical formula Al(OH)3, alternatively written as Al2O3-3H2O.
ALCAN ULTRAFINE products are sub-micron in particle size.
In common with the FRF, FRFLV and SUPERFINE product ranges ALCAN ULTRAFINE products utilise the release of combined water to impart high performance flame retardant and smoke suppressant properties in plastics and rubbers.
Advantages of ALCAN Ultrafine Grades:
Halogen free flame retardancy
Delayed ignition
Retarded rate of burning
Reduced smoke emission
Replaces other fillers
Extremely low electrolyte levels
Safe to handle
Cost effective
Can be supplied pre-coated


Electrical conductivity (uS/cm): 10
pH (5% w/v slurry): 6
Specific Gravity: 2.42
Refractive Index: 1.57
Moh's Hardness: 2.5-3.5
Chemical Analysis (%):
Al2O3 (by difference): 65.1
H2O (combined): 34.5
Na2O (combined): 0.12-0.21
White crystallization powder
conductivity 10 pS/cm (1% w/v in deionized water)



Industrial field additive
Alcan Chemicals(A Division of Alcan Inc)
Phone +1 216 765 2550
Fax +1 216 765 2570
Homepage -
E-mail acebi.enquiries@alcan.com
Address 3690 Orange Place Suite 400 Cleveland Ohio 44122 4438 USA
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