Posted in chemistry hacks, PCB Hacks Tagged Chemistry, etchant, etching, ferric chloride, Hydrochloric acid, pcb, peroxide, sodium persulfate Soldering Like It’s 205 BC September 18, 2018 by Dan ...

Although they’re still waiting on 50 tons of gamma ferric oxide from their supplier in Minnesota, they have recently acquired 11 tons of the stuff. “But it’s not a train, it’s trucks from ...

Some specimens also have almost a bronze-like appearance. The range of colours produced when ferric oxide is used as a colouring agent for glasses and glazes is practically as great.

Production is being threatened, however, by a worldwide shortage of gamma ferric oxide, the most common material used for magnetic recording. According to a letter from NAC to its customers, ...

SOILS and sediments often contain large quantities of hydrous ferric oxide which, according to X-ray analysis, cannot be accounted for by crystalline forms of iron oxide. This is surprising in ...