Hydrated Alumina A KC30 Hydrate ALCOA WORLD ALUMINA – AUSTRALIA A/004-R05/0201 page 1 of 1 A hydrated alumina for alumina chemicals production Product Information Product Description KC 30 is a coarse off white hydrated alumina KC30 Hydrate is a hydrated alumina precipitated in an SGA process circuit. Applications KC30 is used for the production of aluminium chemicals, most commonly: • alum • sodium aluminate Typical Properties of KC30 Hydrated Alumina Chemical Analyses, wt % Al 2O 3 Al(OH) 3 Na 2O SiO 2 Fe 2O 3 CaO Soluble Na 2O Shipping Limits 64.7 min 99.0 min 0.45 max 0.03 max 0.03 max 0.05 max 0.10 max (1) Typical Range 65.1 - 65.2 99.5 - 99.7 0.22 - 0.32 0.007 - 0.017 0.006 - 0.011 0.027 - 0.033 0.000 – 0.040 Particle Size (cumulative) (2) % on 100 mesh (150µm) % on 325 mesh (45µm) 15 max 90 min 1) Approximately 2 standard deviations around the mean. 2) Electroform Screens Information presented herein is believed to be accurate and reliable but is not intended to meet any specification and does not imply any guarantee or warranty by Alcoa. a Alcoa World Alumina - Australia Cnr Davy and Marmion Streets, Booragoon, Western Australia 6154, Australia Postal Address: P.O. Box 252, Applecross W.A. 6153, Australia Phone:+61 8 9316 5111, Fax: +61 8 9316 5228 0 - 10 88 - 99