does store bought sodium carbonate need to be dried?

[monkeyboy]

while looking for pool supplies, swim came across sodium carbonate...

he knows sodium bicarb needs to be cooked to dehydrate and turn it into sodium carbonate- does storebought sodium carbonate need to be cooked?

is it hydroscopic?

 

[endlessness]

Arent you going to mix it with water afterwards?

What use are you considering for it?

 

[LandOfOz]

you also loose carbon when you cook sodium bicarb. not just water. hence it not being reversed by addition of water.

 

[alzabo]

Does this mean that when we convert baking soda to sodium bicarbonate and see bubbles coming off, those bubbles are carbon dioxide and steam?
2NaHCO3(s) -> Na2CO3(s) + CO2(g) + H2O(g)
^like that?

 

[endlessness]

yep