Will baking sodium bicarbonate in the oven for an hour make it in to a sodium carbonate?

Radost · 2026-03-20T23:12:44-0400

Need some sodium carbonate. Can I just bake sodium bicarbonate?

Samu · 2026-03-21T02:32:32-0400

Yes. Sodium bicarbonate will decompose in hot oven.

gbroadbridge · 2026-03-21T05:57:10-0400

Radost said:
Need some sodium carbonate. Can I just bake sodium bicarbonate?

Yes.

I bake 1kg of Baking Soda (Sodium Bicarbonate) at 120c (240f) for 2 hours.

I use a lot of Sodium Carbonate for a marine aquarium and that's the cheapest way for me to make it.

fgorga · 2026-03-21T07:59:27-0400

Radost said:
Need some sodium carbonate. Can I just bake sodium bicarbonate?

Yes, but why bother?

Sodium carbonate also known as "Washing soda" is available at many grocery stores in the laundry section and is inexpensive.

gbroadbridge · 2026-03-21T08:06:07-0400

fgorga said:
Yes, but why bother?

Sodium carbonate also known as "Washing soda" is available at many grocery stores in the laundry section and is inexpensive.

Laundry washing soda has unknown impurities.
I guess it's going to depend on what you want to use it for.
Baking Soda is at least food grade.

loccdor · 2026-03-21T08:12:35-0400

Also makes a great banana bread.

Don_ih · 2026-03-21T08:46:24-0400

I use sodium carbonate packaged as Ph adjuster for pools. There's nothing else in it.

Will baking sodium bicarbonate in the oven for an hour make it in to a sodium carbonate?

Radost

Samu

gbroadbridge

fgorga

gbroadbridge

loccdor

Don_ih

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