Sodium bicarbonate - Sodium carbonate ?

[Dwilson9]

What's the difference? Can both be used at the same time for bath bombs? If so at what ratio/percentage? Why? Could you just use sodium carbonate? if so, what would happen?

 

[lsg]

Sodium Carbonate is washing soda and should not be used in bath and body products.

 

[BWt]

Yes per @lsg response above. These two items have dfferent chemical make up. One is Washing soda not normally used on skin due to being caustic. The other is baking soda. Always more bits and pieces to learn in soap making . More info here: Difference Between Sodium Carbonate and Sodium Bicarbonate | Difference Between