| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| warren | "Awesome @zengirl2 @gretchengehrke " | Read more » | over 6 years ago | |||
| ErikHanley11 | "Thank you, @Zengirl2! " | Read more » | over 6 years ago | |||
| ErikHanley11 | "@Zengirl2 Absolutely! We did this testing at Deer Island Sewage Treatment Plant, which is the Boston metropolitan area's sewage treatment plant. Th..." | Read more » | over 6 years ago | |||
| stevie | "@stevie awards a barnstar to ErikHanley11 for their awesome contribution! " | Read more » | over 6 years ago | |||
| stevie | "@stevie awards a barnstar to ErikHanley11 for their awesome contribution! " | Read more » | over 6 years ago | |||
| warren | "@warren awards a barnstar to ErikHanley11 for their awesome contribution! " | Read more » | over 6 years ago | |||
| zengirl2 | "These pics are the best--would love to hear more about the site you chose and whether it was difficult to get permission for its use. Thanks again! " | Read more » | over 6 years ago | |||
| zengirl2 | "Wow these are great--ty so much for taking the time to document this! " | Read more » | over 6 years ago | |||
| Ag8n | "Let me do a little more research and get back to you. " | Read more » | over 6 years ago | |||
| warren | "@Ag8n -- would you like one of our prototyping kits? We're almost ready to start shipping them out, and @asnow and @bronwen can get one over to you..." | Read more » | over 6 years ago | |||
| gretchengehrke | "That is such a good idea, @Ag8n!! We should definitely try this. @sara, what would you think about trying this with copper strips that are colocate..." | Read more » | over 6 years ago | |||
| Ag8n | "Copper and copper (I) oxide can be determined visually, based on color. Copper (II) oxide and copper sulfide, both of which are black, cannot be e..." | Read more » | over 6 years ago | |||
| Ag8n | "Hi Gretchen. Out of curiousity, what progress has been made on this question? Thanks. " | Read more » | over 6 years ago | |||
| gretchengehrke | "Also, I just saw on comptox.epa.gov that acetone is actually more hydrophilic than isopropanol, which totally surprises me! I guess vapor pressure ..." | Read more » | over 6 years ago | |||
| gretchengehrke | "Either acetone or 99% isopropanol are probably fine, and maybe we should do a comparison. The only concern I see with isopropanol is that it has a ..." | Read more » | over 6 years ago | |||
| Bronwen | "I think it probably depends somewhat on what we need the cleaning agent to do: alcohol and acetone work a little differently, and acetone will like..." | Read more » | over 6 years ago | |||
| warren | "@asnow @bronwen " | Read more » | over 6 years ago | |||
| warren | "@gretchengehrke mentioned: Isopropanol has pretty similar properties, but the commonly available rubbing alcohol in drug stores is 70% isopropanol..." | Read more » | over 6 years ago | |||
| warren | " " | Read more » | over 6 years ago | |||
| warren | "I tried scrubbing these with acetone after using very strong double-sided tape to attach them to a wood plank. So far it doesn't seem like the acet..." | Read more » | over 6 years ago | |||
| zengirl2 | "I'm liking this a lot. I might want to try these for my experiment as I think snipping copper is hazardous LOL. Also, this could make an interestin..." | Read more » | almost 7 years ago | |||
| gretchengehrke | "@warren, I thought the sandpaper we used (that was like a polisher) worked well to remove grime on the surface of the copper, which is its purpose...." | Read more » | almost 7 years ago | |||
| Bronwen | "I think you have to aim to be in a well ventilated area for pads too: pouring acetone might not be too terrible depending on what kinds of bottles ..." | Read more » | almost 7 years ago | |||
| warren | "Just wanted to link over to this discussion of copper "badges": https://publiclab.org/questions/warren/12-06-2017/what-are-some-options-for-copper-..." | Read more » | almost 7 years ago |