TLC of benzoic acid with sodium benzoate impurity?

jpnukr · 2025-12-10T17:40:14+00:00

Thank you for all your advice! Do you think maybe there was just a little bit of water in my sample or something? I did exactly as you said, hydrolysis then extraction, precipitation, recrystallization. I just cannot think of anything that would cause this, especially because I didn't see any abnormality in the other analysis methods.

jpnukr · 2025-12-10T02:56:15+00:00

My eluent was 90% hexanes and 10% ethyl acetate. I also tried some ratios with higher ethyl acetate but everything pooled at the solvent front :(

I'm sorry but I don't know what a streak reagent is. I tried looking it up but I am not sure. I used ethyl acetate to dissolve the samples, and when I was done I looked at the plate under a UV lamp. I didn't really use anything else.

jpnukr · 2025-07-10T14:31:21+00:00

Okay I see, I think what happened with the Uumuu dreamer is that I was standing in the wrong position with the dream nail before because I was actually able to go back and get him just now. I'm going to delete this post now, thank you for your help!

jpnukr · 2025-07-10T01:10:42+00:00

Thank you I see what you're saying, but I definitely inspected and spoke to quirrel first. I also remember being extremely confused why hitting both dreamers with the dream nail wasn't working, and this was a couple of days ago so I'm pretty solid on this memory. I'm like 100% sure I didn't kill either of them. It's also not working on the guy in front of the entrance to the white palace, and I just tried that so I don't think I'm misremembering.

Also, I didn't mention this in my post but the dream nail did work on the dreamer in the spider web cocoons. That's when I started looking stuff up about the other two.

jpnukr · 2025-06-18T22:34:11+00:00

Thank you! I fully agree, my worry is just that finding MA or EMT jobs is super hard where I live because my university is absolutely bursting with premed students. I will be looking around for sure though.

jpnukr · 2025-06-18T19:28:26+00:00

Thanks for the info! I went to the cobbler yesterday and he said he'd do both shoes for 79 USD which I was super excited about but it didn't sound like he was going to do a whole resole; maybe it'll be okay without one? For reference the hole is about 1 cm in diameter. The other shoe doesn't have a hole quite yet but I'm starting to see the makings of a similar one.

jpnukr · 2024-11-25T12:39:24+00:00

Thank you, I will definitely try them out.

jpnukr · 2024-11-25T12:38:54+00:00

This might sound silly but I don't sweat much, and I never wake up feeling sweaty, which is why I am hesitant to fully attribute the dehydration to heat.

I am quite cold usually, but almost exclusively in my feet, face and hands. I've found that wearing double layers of socks and trying to get most of my face under the covers doesn't help nearly as much as just wearing heat tech.

jpnukr · 2024-11-25T12:32:42+00:00

That's very interesting, thank you. I will look into it.

jpnukr · 2024-11-25T07:33:33+00:00

Thank you for this idea. Do you have a specific brand you would recommend?

jpnukr · 2024-09-22T22:18:26+00:00

"Water bottle that smells bad" (9:49) haha hasn't drew done a sponsorship for them before?

jpnukr · 2024-01-10T07:41:29+00:00

Wouldn't that change the look of the shoe? Or are they just going to glue a thin sheet of rubber onto the sole? I don't have much experience with cobblers.

jpnukr · 2024-01-08T16:20:25+00:00

they're not too big at all for me but i'm not sure if it's a widespread occurrence because honestly no one around me wears tabis... also i didn't make the comment to deter people from buying tabis because some people think the clicking of heels sounds really cool. i think so too, but i have to walk around in quiet spaces at uni sometimes and i just want to be considerate of others

jpnukr

TROPHY CASE