Hi Ron

Sodium Carbonate
Dense (soda ash)
Na2 CO3 Molecular Weight 105.99

powder

thats on the label

thanks
Bob


I really appreciate all the fast responses


Quote Originally Posted by Photo Engineer View Post
Bob;

Is your Sodium Carbonate the anhydrous or the monohydrate? The Arm and Hammer is probably the monohydrate. If yours and theirs are the same, then you can use the washing soda, but if one is the anhydrous and the other is the monohydrate, then you must compensate for the difference.

PE