Sodium aluminate is a white amorphous crystalline powder or colorless viscous liquid, hygroscopic in nature. Its aqueous solution is strongly alkaline. It reacts with acids to form aluminum hydroxide precipitate, and reacts with carbon dioxide to precipitate aluminum hydroxide. It is corrosive.

1. Water Treatment: flocculant, silica removal, phosphorus removal, pH adjuster
2. Construction: concrete accelerator, early strength agent
3. Papermaking: filler, sizing agent, resin control agent
4. Chemical Industry: catalyst support, mordant, ceramic additive, oilfield water shutoff agent
5. Environmental Protection: heavy metal precipitant, acid wastewater neutralization