I too need tp convert disodium EDTA to tetra sodium EDTA.
My recipe calls for a miniscule amount of tetrasodium EDTA. I have to use NaOH solution in the initial steps as well. Can I simply add disodium EDTA in NaOh solution (50% NaOH which will be more than 1 part per 5 part if disodium EDTA...
