Hi Eric, not familiar with working with cellulose nitrate (not common in drug discovery...:-). We tend to use MTBE in place of diethyl ether if possible..that might be a good solvent to try, but I'm not sure it's as readily available to Joe Public as Acetone or IPA. Petroleum Ether (Mineral Spirits or White Spirit as my Dad would call it...) is still used in lacquers, paints etc, so could also be worth a try....again, bit more hazardous to health over the long term...
Sent from my iPhone > On Jun 10, 2016, at 23:43, Tidak Ada <[email protected]> wrote: > > Hi Nicholas, > > Am I right the material of the red coating is on base of collodion (cellulose > nitrate) ? So the best solvent should be diethyl ether.? Highly flammable > and known as anesthetic! > > Eric > > > Van: [email protected] [mailto:[email protected]] Namens > Nicholas Stock > Verzonden: vrijdag 10 juni 2016 15:51 > Aan: [email protected] > Onderwerp: Re: [neonixie-l] removing red coating from tubes > > Pedro, I use Acetone every day as a chemist...of all the solvents you can > use, it's pretty innocuous (your body actually synthesizes small amounts > normally)...just use it in a well ventilated area. Likewise, isopropyl > alcohol may help you with the stubborn coatings also and is safe to use in a > well ventilated area. If you still have some tubes with paint that won't come > off, we can then talk about the solvents that are less friendly....:-) > > Best of luck! > > Sent from my iPhone > > On Jun 10, 2016, at 06:21, Petro Vodopyan <[email protected]> wrote: > > Thank you for your idea, Nick. I will try it this weekend. Previously i used > a tank with acetone and also soaked tubes in it for a couple of hours. 70-80% > of the coating became soft and was easily removed. But the remaining pieces > still required manual cleaning. And another issue that different > manufacturers/factories used different paint and it did not worked on some of > tubes - the pain was not even softened. Also acetone is very toxic so i'd > like to find a more "healthy" way to remove the coating. > Anyway i will try your idea. Thanks > > > > С уважением, > Петр Водопьян > +38 066 55 78 780 > > 2016-06-10 16:13 GMT+03:00 Nicholas Stock <[email protected]>: > Petro, no need to use ultrasound. I've had success with just soaking the > tubes in warm water with a little soap for 30 minutes and then using a knife > to scrape it off....came off quite easily. The only stubborn part was the > glass tip of the tube where I gently used a scalpel to peel it off. > > HTH, > > Nick > > Sent from my iPhone > > On Jun 10, 2016, at 05:51, Petro Vodopyan <[email protected]> wrote: > > Hello, > Does anyone know is it possible to remove the red coating from a nixie tubes > (e.g. Z574) via ultrasonic bath without making any damage to the tubes? I > have a bunch of this tubes but major part of them have scratches on red > paint. So i decided to remove the paint and now i'm looking for the easiest > way to do it (instead of scratching each tube with knife). Before i buy an > ultrasonic bath i would like to know will this approach work or not. > Any help is appreciated. > Petro > -- > You received this message because you are subscribed to the Google Groups > "neonixie-l" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > To view this discussion on the web, visit > https://groups.google.com/d/msgid/neonixie-l/c73e0b3e-d9ef-4c1a-a4de-bd8151af2c65%40googlegroups.com. > For more options, visit https://groups.google.com/d/optout. > -- > You received this message because you are subscribed to the Google Groups > "neonixie-l" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > To view this discussion on the web, visit > https://groups.google.com/d/msgid/neonixie-l/1D68C14D-3700-450A-990D-7E5CF039D9A5%40gmail.com. > > For more options, visit https://groups.google.com/d/optout. > > -- > You received this message because you are subscribed to the Google Groups > "neonixie-l" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > To view this discussion on the web, visit > https://groups.google.com/d/msgid/neonixie-l/CAPmEu%3DZ%3DVc%3DTDuREOhUWGEafjc3zzLsCPVJUnrv3BGwgRByzfw%40mail.gmail.com. > For more options, visit https://groups.google.com/d/optout. > -- > You received this message because you are subscribed to the Google Groups > "neonixie-l" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > To view this discussion on the web, visit > https://groups.google.com/d/msgid/neonixie-l/88260FE6-AA60-47C8-8FB6-940B52101886%40gmail.com. > For more options, visit https://groups.google.com/d/optout. > -- > You received this message because you are subscribed to the Google Groups > "neonixie-l" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > To view this discussion on the web, visit > https://groups.google.com/d/msgid/neonixie-l/!%26!AAAAAAAAAAAYAAAAAAAAAPDddShx705MuX20yCpp0vvCgAAAEAAAAEfPZCsYgApOr5c1qgnpBWUBAAAAAA%3D%3D%40zeelandnet.nl. > For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. 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