Is there a common household item that can be subswtituted for sodium carbonate i.e. baking soda?
Is there a common household item that can be subswtituted for sodium carbonate i.e. baking soda?
You want to look for "washing soda" at the grocery store. It is the same as sodium carbonate decahydrate, Na2C03*10H20.
Kirk - www.keyesphoto.com
baking soda is sodium bicarbonate. Isn't it?
Correct. Baking soda is sodium bicarbonate, and can be converted to sodium carbonate if you absolutely can't find the right kind (cook it at some high temperature until it stops outgassing from the heat and you'll have sodium carbonate anhydrous). I buy Arm & Hammer Super Washing Soda in the laundry aisle, right next to the borax (which I also buy -- must remember to try mixing some D-76, haven't used it in about 25 years).
If a contact print at arm's length is too small to see, you need a bigger camera. :D
I believe that baking powder (not soda) is sodium carbonate.
Brian Vuillemenot
Arm & Hammer Washing Soda. You just need to remember that it is not anhydrous and use the conversion factor for decahydrate, if anhydrous is called for. In other words, it takes a little more because it contains water.
No, baking powder is baking soda with cream of tartar added, so that it does not require an acid in the recipe (the cream of tartar forms tartaric acid).Originally Posted by Brian Vuillemenot
Washing soda is sodium carbonate, as the other posts have indicated.
this might be the same stuff that they sell as "100 mule team" or something like that. i knew a guy who mixed his developers with it ... seemed to work fine.Originally Posted by Kirk Keyes
Instant coffee (in conjunction with washing soda) makes a great film and paper developer. Also chemicals for pools such as PH control I believe is sodium carbonate, but I could be mistaken. Store bought lye is a great activator.
No - 20 Mule Team (or other numbers of mules) are borax. While borax is used in some developer formulas, it is not the same as sodium carbonate.Originally Posted by paulr
Kirk - www.keyesphoto.com
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