In ceramics it is used primarily to promote ‘stiffness’ of glazes (6-10% of silica content). Increasing firing temperature and resistance to chemical attack. In larger quantities (15% of glaze) however, produces opaque and matt effects. Also used on kiln shelves as protection against glaze sticking.
Uses of Aluminium Hydroxide
⦁ For the manufacture of aluminium and aluminium compounds
⦁ As a fire retardant
⦁ Ceramics and pottery
Technical Grade
⦁ Formula: Al(OH)3
⦁ UN No. N/R
⦁ CAS No. 21645-51-2
⦁ Appearance: white powder
⦁ % purity:
⦁ Other names:Aluminium(3+) trioxidanide, Aluminic acid, Aluminic hydroxide, Aluminium(III) hydroxide, Aluminum hydroxide,Hydrated alumina, Orthoaluminic acid
⦁ Molecular formula: Al2O3.3H2O
⦁ Molar mass: 78 g/mol
⦁ Density: 2.42 g/cm3
⦁ Melting point: 300 C
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