Name: Mark

Message: Will Sodium BiCarbonate work the same as Sodium Carbonate or soda ash? Thank you very much for your response. I really appreciate it.

No, sodium bicarbonate (baking soda) does not produce a high enough pH. Sodium carbonate (soda ash or washing soda) will produce a pH around 11, while sodium bicarbonate will produce a pH only round 8, which is too low for optimal results.

You can readily buy sodium carbonate from a local swimming pool supplier or hardware store. Look for a product called "pH Up" or "pH Increaser". Check the lower front label for the actual ingredients. Do not accept bicarbonate when you have asked for carbonate.

You can often also find Washing Soda, which is a hydrated form of sodium carbonate, in the grocery store with the laundry products. Look for Arm & Hammer brand, which is free of dyes and other additives.
Also see "What is soda ash, and what's it for in dyeing?", and an interesting blog question, "Finding auxiliary chemicals for dyeing in Kathmandu".

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