Everything posted by DHettinger
Yes! thanks Tyler! A chemist friend of a friend of family bounced back that it's more likely from iron. Fascinating stuff. Nevertheless, I haven't been able to recreate it under other lower temperature circumstances. Seems the 1500-1600F range is important. Also, I checked it a day after passing through the coffee filter and it's dropped out on it's own. Still at 12+pH, it's now a very clear slight yellow w/ what could be rust or Cu on the bottom. Photos below of the same jar 24 hours apart.
Thanks all 3 for pitching in on this. Ash source was from the wood stoves of friends and coworkers - from common mixed hardwoods native to my part of WNC. Nothing fancy there. Filtering has little effect save for slightly improved clarity. interestingly, after filtering I noticed some yellow staining on the inside rim of the original mason jar I had stored it in , just above the fill line. Going to check the homebrew shop in the morning for sodium metabisulfate. Thanks for the tip! Amphoretic - new word for me. My pH strips indicate I'm in the 12 range on both sampl
I'm not currently a ceramics artist (though upon reading, this about mixing glazes is fascinating) but rather I'm exploring wood ash chemistry for an upcoming "Waste Not" workshop at our farm in Western NC - these workshops are about diving deep into applications for what is conventionally considered a waste product. I'm admittedly in over my head a little with this one. I've stumbled across a brilliant green (with a touch of blue) color after soaking wood ashes that have been calcined for 2 hours at 1500F. What is causing this? Some details of the experiment: I have two s