There are better chemists than me on this list, and I simply buy mine from
Bostick and Sullivan. But, I believe the "correct" version (for clearing
platinum / palladium prints) is "Tetra-Sodium".
email@example.com (Tom Ferguson)
"Ole Chr. Magneshaugen" <firstname.lastname@example.org> wrote:
>Looking through my chemical supplies catalogue, I found several references
>to >EDTA-compounds. Is EDTA somewhat a generic term? Could someone
>explain? >Could all "versions" be used or just the sodium salt ones?