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Response to Catechol-Metol

from Jorge Gasteazoro (jorgegm@worldnet.att.net)
Ok, I will make this easier for you. The potassium bromide is there as an antiffoging agent, I have never seen fogging with my formula and I don't use potassium bromide or any other antiffoging agent. as a matter of fact with Tmax 100 my b+f is 0.03. In any case if you want to add it it wont dimish your stain. The sodium carbonate (Na2CO3) is there to activate the catechol by increasing the pH as it will decompose into sodium hydroxide. You might as well save yourself some money and add about 5 to 8 grams of sodium hydroxide instead of 120 grams of sodium carbonate!
(posted 8456 days ago)

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