X-Nico

unusual facts about sodium carbonate



Calcium chloride

Kelp is dried with calcium chloride for use producing sodium carbonate.


see also

Bayer process

A few years earlier, Henri Étienne Sainte-Claire Deville in France developed a method for making alumina by heating bauxite in sodium carbonate, Na2CO3, at 1200°C, leaching the sodium aluminate formed with water, then precipitating aluminium hydroxide by carbon dioxide, CO2, which was then filtered and dried.

Caustic embrittlement

Sodium carbonate is used in softening of water by lime soda process, due to this some sodium carbonate maybe left behind in the water.

Sesqui

Sodium sesquicarbonate, a double salt of sodium bicarbonate and sodium carbonate