Aluminium carbonate

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Aluminium carbonate
Other names
Aluminum carbonate
ECHA InfoCard 100.034.930
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Aluminium carbonate (Al2(CO3)3), is a carbonate of aluminium. It is not well characterized; one authority says that simple carbonates of aluminium, gallium and indium are not known.[1] Basic aluminium carbonate, the mineral dawsonite, is a known compound.


There is no evidence that aluminium carbonate is formed in double decomposition reactions; soluble carbonates are sufficiently alkaline to precipitate aluminium hydroxide and produce carbon dioxide.[2] The reaction of aluminium sulfate and sodium bicarbonate forms carbon dioxide and aluminium hydroxide which stabilises the formation of a foam.[2] This reaction was the basis of an early fire extinguisher invented by Aleksandr Loran in 1904.