Tim C. Smith @chemsmith.bsky.social · 14/09/2026A bit ago I couldn’t remember the word “thermometer.” Could only say “temperature probe.” Sheesh. 🧪 #chemsky #chemchat 140
Tim C. Smith @chemsmith.bsky.social · 10/09/2026Anyone know how to wash/clean the charcoal out of this funnel? Happens in ground glass joints too. 🧪 #chemsky 731
Tim C. Smith @chemsmith.bsky.social · 04/09/2026Bike ride is better and beer is tastier when you’ve played hooky from work to do it. 010
Tim C. Smith @chemsmith.bsky.social · 27/07/2026Looking for anyone who has done this as a large scale (>10 g) preparation of L-Glutamine. I can't get it to work well. (Yes I've scoured the literature and have considered the inhibitory feedback mechanisms and have varied all the variables I can, but continue to get poor yields.) #chemsky 🧪 010
Tim C. Smith @chemsmith.bsky.social · 08/07/2026When I was a kid and toothpaste tubes were metal (yes they were youngins!), we had little devices to scroll them up to get all the toothpaste out. Need that now. 🧪 #chemsky 791
Tim C. Smith @chemsmith.bsky.social · 20/06/2026Woohoo my alma mater still holding strong. At least in the US. 🧪 #chemsky 0160
Tim C. Smith @chemsmith.bsky.social · 19/06/2026I did. It seems fine to me? (Big signal @ 32-35 min is my compound of interest.) 330
Tim C. Smith @chemsmith.bsky.social · 19/06/2026Any prep-HPLC experts? I must isolate 20-40 g of a fatty acid ester by HPLC. RP column. So, many injections. I can make solutions that are 1 g material in 4 mL mobile phase. Is this a crazy (e.g., bad) concentration to use? It does *seem* to be working. 🧪 #chemsky 583
Tim C. Smith @chemsmith.bsky.social · 09/06/2026I got one! Coworker made it and we dig it. Our new lab mascot. Believe I first saw this from bsky.app/profile/simo.... 🧪 #chemsky 0131
Tim C. Smith @chemsmith.bsky.social · 07/06/2026Using a balloon feels old school and fun. 🧪 #chemsky 1221
Tim C. Smith @chemsmith.bsky.social · 04/06/2026In 2 days, a scientist wrote a whole paper and it was accepted. That was back in 2020. By now I assume you just feed in some data and AI converts it to a paper and minutes later it’s accepted by AI editors. 🧪 041
Tim C. Smith @chemsmith.bsky.social · 03/06/2026If there exists a 6-month to 1-year PhD level position in synthetic organic chemistry in the Seattle area, please let me know! (Yeah I know the odds are low.) Why this picture? I don’t know - but I can do chemistry! 🧪 #chemsky 0114
Tim C. Smith @chemsmith.bsky.social · 01/06/2026I kind of like getting a whiff, just a whiff, of ammonia. I don’t hate the smell in small doses. It makes me feel clean, or awake, or something. 🧪 #chemsky 580
Tim C. Smith @chemsmith.bsky.social · 27/05/2026In case you were wondering what’s in here. 🧪 #chemsky 1210
Tim C. Smith @chemsmith.bsky.social · 15/05/2026Twice I have tried and failed to get into the lottery for this. Question: are there any other similar types of interesting natural phenomena like this to see? I think there are the bats exiting caves in Texas. Other stuff? Anything. 🧪 330
Tim C. Smith @chemsmith.bsky.social · 14/05/2026Apparently Wheaton (or anyone?) does not make these desiccators any more - the ones with the gaskets. I like them much better than the ones you have to grease, and require force to pull the lids off. Do you know if these are sold anywhere? (Besides eBay) 🧪 #chemsky 261
Tim C. Smith @chemsmith.bsky.social · 02/05/2026This is in Virginia? We have these in Ohio too now. 130
Tim C. Smith @chemsmith.bsky.social · 29/04/2026Harold Urey was born on this day in 1893. He discovered deuterium in 1932. Willie Nelson was born on this day in 1933 (same year as my mom). Urey got the Nobel Prize in 1934. Are these events connected? Here’s a New Ales Post Mow Lawn German Kolsch 4.2% to them. Willie is still with us! 🧪 #chemsky 0162
Tim C. Smith @chemsmith.bsky.social · 29/04/2026Every time I see someone shame-post about how people should give up driving and bike to work, it’s a picture of someone on a completely flat road in the middle of the city. Not on hilly country roads for 30 km on icy roads in the dark with cars 2 cm from them. 🚲 020
Tim C. Smith @chemsmith.bsky.social · 15/04/2026They should make these in funky colors and designs. 🧪 #chemsky 041
Tim C. Smith @chemsmith.bsky.social · 28/03/2026Been firmly opposed to the anti-decency (and anti-science) party for a long time. 🧪 #chemsky 0708
Tim C. Smith @chemsmith.bsky.social · 27/03/2026WHY does my pump make a HORRIBLE ear-splitting racket for 5-45 min after turning it on. After that time it settles down. Doesn't seem to be related to amount or cleanliness of oil, or the belt. I think it's in the oil reservoir. 🧪 #chemsky 841
Tim C. Smith @chemsmith.bsky.social · 25/03/2026If I only had a dollar for every time I realized it had not been rotovaping the last two hours because I did not hit the heating start button. 🧪 #chemsky 2120
Tim C. Smith @chemsmith.bsky.social · 20/03/2026I cannot think the words “cold finger” without humming a James Bond movie tune. 🧪 #chemsky 1181
Tim C. Smith @chemsmith.bsky.social · 09/03/2026Trying this again. Who are these two, and how are they connected? 🤓 🧪 #chemsky 531
Tim C. Smith @chemsmith.bsky.social · 08/03/2026Who are these two, and what is their connection? 🧪 #chemsky 131
Tim C. Smith @chemsmith.bsky.social · 07/03/2026Didn’t make it to a rally today, but yes I Stand Up for Science! 🧪 #chemsky 2505
Tim C. Smith @chemsmith.bsky.social · 07/03/2026Forever and ever I thought that if the tube did not spin, the signals would be crap. But our spinner was down for weeks and everything was just fine. Signals looked just like they always looked. What do I not understand? (Spinner is back to working now, actually.) 🧪 #chemsky 261
Tim C. Smith @chemsmith.bsky.social · 05/03/2026I was in grad skool 89 years ago but I have this memory that we used to buff our bench tops with mineral oil to make them shiny/pretty? Did I? Did anyone else? Do you do this or something similar now? 🧪 #chemsky 560
Tim C. Smith @chemsmith.bsky.social · 04/03/2026Max Jr can probably tear a mouse or bird to pieces yet I feel the need to mash up his pâté up for him. 000
Tim C. Smith @chemsmith.bsky.social · 26/02/2026Small pet peeve, found on some glassware. I know the markings are only “5%” accurate anyway but why not just go all the way? What, are they saving some money doing this? #chemsky 🧪 3142
Tim C. Smith @chemsmith.bsky.social · 20/02/2026I somehow have only recently discovered I can do SiO2 chromatography using an eluent of 45:45:10 CHCl3:MeOH:con NH4OH. No problem. Wouldn’t have previously guessed I could use that much aqueous and MeOH. Anyone else doing similar things? #chemsky 🧪 4101
Tim C. Smith @chemsmith.bsky.social · 20/02/2026I caught these a couple of weeks ago in Miamisburg Ohio. 0180
Tim C. Smith @chemsmith.bsky.social · 09/02/2026In Episode 77 of Topics in Endurance Sports I talk about three short trails races I did. In Ohio, Kentucky, and Indiana. 101
Tim C. Smith @chemsmith.bsky.social · 20/01/2026Ain’t having much luck with this Northern Lights thing. The one time I didn’t go out (bc my useless app suggested not to) people nearby posted cool pics. The three times I did go out, I’ve mostly seen nothing but dull sky. 🧪 160
Tim C. Smith @chemsmith.bsky.social · 19/01/2026The Nobel Peace Prize committee may have to give itself the Nobel Peace Prize for not giving Trump the Nobel Peace Prize. 010
Tim C. Smith @chemsmith.bsky.social · 17/01/2026Do you appreciate someone from decades ago? It’s not always too late to thank them! 🧵 🧪 #chemsky #chemchat 2180
Tim C. Smith @chemsmith.bsky.social · 16/01/2026Is it fairly common to do prep HPLC separations using only MS signals to decide when to collect product? For compounds with poor absorbance? E.g., amino acids. 🧪 #chemsky #chemchat Max Jr is curious too. 341
Tim C. Smith @chemsmith.bsky.social · 10/01/2026Some only flew into the nearby tree when I got close. 🧪 190
Tim C. Smith @chemsmith.bsky.social · 10/01/2026Smart/birder friends, why did all these little birds fly into my neighbor’s bush and get all chirpy TODAY? Near Cincinnati Ohio. 🧪 7182
Tim C. Smith @chemsmith.bsky.social · 09/01/2026I love how in the movies (esp old movies) the aliens have some freaky evil technology that is nothing but a black box to us, yet in about 36 hours we (always an older white man) have a fix for it. 🧪 #chemsky #chemchat 3180
Tim C. Smith @chemsmith.bsky.social · 01/01/2026Dream: some billionaire (trillionaire?) opens a gigantic laboratory where regular (non-superstar) scientists could work on their pet idea(s) for a year or two, to see if it’s feasible. Imagine the discoveries that would happen, the collaborations formed. 🧪 #chemsky #chemchat Also: Max Jr. 5413
Tim C. Smith @chemsmith.bsky.social · 29/12/2025I know we see this crazy stuff a lot, but this was at the science section of a museum! Sheesh. I sent them a message, begging them to find a chemist to fix it. 🧪 #chemsky #chemchat 7462
Tim C. Smith @chemsmith.bsky.social · 22/12/2025Found this little guy in our bathroom. I guess he is a “bold jumping spider.” some people keep them as pets. 040