alkali metal carbonate
don't decompose by heating but do they melt or sodiumcarbonate only?
2007-12-26 11:51:42 · 4 answers · asked by roody16 1 in Science & Mathematics ➔ Chemistry
Heat normally decomposes carbonates, except those of the alkali metals. Most metals form the oxide when strongly heated.
http://www.physchem.co.za/Inorganic/Carbon.htm
2007-12-29 13:56:55 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Alkali Metal Carbonate
2016-12-16 14:48:36 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Your question is kind of confusing!
If you are looking for an alkali metal carbonate that is resistant to losing CO2 on heating; you could try lithium carbonate it is listed as melting a 723 C and doesn't decompose untill about 1310 C. The other alkali metal carbonates decompose at lower temperatures. Berylium carbonate might be quite stable but there was no data for it.
2007-12-26 12:30:34 · answer #3 · answered by Flying Dragon 7 · 0⤊ 1⤋
All alkali metal carbonates decompose by heating into the metal's oxide and CO2.
For example:
Na2CO3 = Na20 + CO2
K2CO3 = K2O + CO2
They don't melt! As for the first answer, I didn't know the Li2CO3 fact. Maybe it's true.
2007-12-27 01:53:49 · answer #4 · answered by Louise 3 · 0⤊ 1⤋