Recent content by Muzzer

I would expect heat and ultrasonic excitation would speed up the process but it would make a fine mess of the bath so if I'm in a hurry I might go that route, otherwise the passage of time is a simpler compromise. For small parts, you can put them in sealed containers to contain the mess but...

I managed to procure some raw materials for my attempt at a pH-neutral derusting solution, so was able to give this a shot this weekend. I obtained 1kg each of tetrasodium EDTA, sodium gluconate and citric acid. The solubility of these is pretty high but most commercial products seem to contain...

There's clearly a lot of BS and snake oil in Eavpo-Rust. When you do a bit of digging, it soon becomes clear that metal cleaning derusters are a fairly well understood subject. The patents that have been granted (and hence published) explain the underlying chemistry pretty nicely. Typically...

Old thread this but for the chemists out there, this patent makes interesting reading. Although it lists several proprietary derusters and their constituents, possibly including Evaporust, none of them appear to include Na4 EDTA.