BBC News Rather than submerge the wings and fuselage in large and expensive tanks, they plan to spray them with water and then a combination of citric acid and sodium hydroxide in an attempt to halt the corrosion. The chemicals will be collected, analysed and ... and more »
The Planetary Society (blog) I was totally amazed when at a parents day we visited our kids school and found that the chemistry labs were devoid of any but the most inert substances. no phosphorous, no sodium, no mercury... they did have some copper sulphate. Yes, the dumbing down ... and more »
Northwest Public Radio The reason we add the sodium hydroxide is to reduce lead and copper corrosion control in the system." Degner sits down in a cavernous room lin...
KATU The third chemical is NaOH. That's sodium hydroxide . It increases the PH of the water to cut corrosion of plumbing systems. It helps control lead and copper lev...
The Northern Miner (subscription) The facility would not only produce upgraded copper but also sulphuric acid that is needed by the country's copper industry to process oxide copper concentrate. Another company with new question marks around it is Australian-based Mawson West (MWE-T), ... and more »
Washington Post Congo's biggest mining project, Freeport-McMoRan affiliate Tenke Fungurume, said its exports of copper cathode and cobalt hydroxide are allowed under its contracts — drawn up before the ban. Congo is by far the world's largest producer of cobalt — 60 ... and more »
OPB News The reason we add the sodium hydroxide is to reduce lead and copper corrosion control in the system." Degner sits down in a cavernous room lined with locker...
