![]() Instead of the 5 hours of immersion suggested on the wiki, I found that the knife began taking on a patina at around 25 minutes. Suspending the knife in such a small quantity of patina solution was difficult, and I ended up twisting some metal hangers to help suspend the knife. I added all the required reagents to the ~60mL of nekonoshoben collected, being careful to scale down the volumes. ![]() At this point all patina was gone from the blade and there should have been no organic compounds left on the surface. Lacking phosphoric acid, I cleaned the blade using sandpaper, vinegar, soap, then 96% ethanol, and finally anhydrous acetone. I figured that some of the old solution had been sitting for 3 weeks already and so had no need to process further. I added a spoon of soil as detailed in the wiki procedure, and then let sit for 2 days. Even squeezing the litter, it took me about 3+ weeks to obtain the amount shown in the imgur album. The greatest challenge was obtaining sufficient cat urine. With all that out of the way, we can get onto the modified procedure that I used, to moderate effect.
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