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| Electropolishing experiments |
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| PK:
--- Quote from: simon.baldwin69 on August 31, 2017, 01:54:39 AM ---but sulfuric acid is difficult to buy at 98% but you can get drain cleaners that are 98%, I refine precious metals! --- End quote --- I get that concentrated acids are dangerous (and useful for many applications.... I feel your pain), but battery acid is, what, about 4mol/L ? IIRC glacial H2S04 is around 18 or so... |
| PK:
:update: Some progress. The trolley for the thing arrived. I welded up the frame that will hold the carrier hooks and get lifted in and out of the tank by an , as yet, unspecified mechanism. Today we made the foam plug for the fume catching lid... |
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