I am a bit confused on the reason triethylamine is added to the phenol and oxalyl chloride in the formation of diesters to test for chemiluminescence. Thanks.
I've got a mixture of TEA.HCL with my metal complex and want to separate the two,but can't use water or alcohols because one of the ligands on the complex exchanges with OH - any ideas? Needs to be semi-green since we're doing it on a multi-year scale
So essentially I work with insects and occasionally I use triethylamine as a spray, like twice a week. I spray it for under 10 seconds into boxes and then open them up. When I use it I essentially either use it in a room with a ventilated fan or outdoors but I fan it out for a minute. I'm paranoid about getting cancer or something horrible from this. I suffer from anxiety too so that's why I'm reaching out, because it's embarrassing to ask my boss about it and I figure some people here could quell my fears, I'm fairly sure I'm just being paranoid.
I know it's not supposed to be inhaled but if any of you have worked with triethylamine before it has a very strong odor so I can smell it sometimes. It's strong enough that I'm reassured by that because it seems like the strong irritant effect kind of saves me from actual exposure, like because it's an irritant it smells strongly so I naturally avoid that smell. It smells very toxic though so I'm worried about getting specifically lung cancer lol. On the SDS it has the scary health hazard symbol, and I immediately think that's the carcinogen symbol every time I see it. But if you look at the SDS it's toxic and an irritant and bad to get on your skin but it's not classified as a carcinogen. I'm worried thought because it specifically says it's not classifiable as a carcinogen which makes me believe that the long term health effects haven't really been studied. Most of what I found was stuff about how acute exposure in high amounts can lead to eye issues but just temporarily. It is an airway irritant and can cause damage, but I can't tell based on the ppm what that means in terms of my own exposure.
As I was typing this post up I saw on one of the sheets that it said that repeated exposure can irritate the lungs and cause bronchitis in the long term. In the acute term it says that in higher exposures it can cause a buildup of fluid in the lungs and cause pulmonary edema and how that's a medical emergency. That's not a chronic thing right, like that's talking about not being able to breathe in the moment? I've had a chronic cough since starting this job (but rationally I think it is that I have a post-nasal drip, because it just seems to be a lot of mucous buildup in my nose/mouth area not my lungs really) and I'm super paranoid I either have lung cancer or bronchitis now. I've also noticed my chest feels pressure when I'm in a pool, whereas it didn't before. I know I get paranoid sometimes so I'm real
... keep reading on reddit ➡Alright, so i have been reading about how to increase yeilds and stuff for 4mmc. I have found a couple strange synths where they use methylamine and triethylamine in the final stage. Why is this?
Sidenote: I found a synth that litterally read like this.
”20g substrate was disolved in 100mL benzene added 20g NaOH in 100mL H2O added 40mL mehylamine (aq solv). 2h boiled with reflux Added HCl in dioxane, filtered.”
”Mildronate comments: when using hcl aq solv red shit forming washed awa with acetone. What is orginal paper (literature) for this method?”
”Anothe method from internet also writed in wiki, what is original papaer for this (literature)?:”
Just wanted to show that
Hello Everyone!
I am a graduate student working on a phosphite reaction and the procedures for this reaction used pyridine. However, in my haste and ignorance, I accidently used triethyl amine. Is this going to be a big issue, or will triethyl amine accomplish the same goal as pyridine?
I'm trying to select a pump for triethylamine offloading. one of the requirements is that the pump has to be explosion proof.
The following is being suggested to me by licensor.
https://www.psgdover.com/docs/default-source/wilden-docs/eom/p820_p830-fit-metal-eom.pdf
http://info.sandpiperpump-idex.com/acton/attachment/17738/f-005a/1/-/-/-/-/S20S30MiniSalesSheet_web.pdf
How can i confirm that these are explosion proof?
Thank you
Hi everyone. I'm currently getting together a bunch of equipment to do some simple synthesis and have run into an issue. I will be dosing triethylamine into my flask under nitrogen but the only glass syringes that I have are 10ml and I really only need 1ml of reagent. I have some standard all polypropylene 3ml syringes (with luer locks) that I was considering using but I can't find anywhere that tells me if they are resistant to the triethylamine. What say you organic chemists?
So I recently converted a methoxy group to a alcohol on a compound that also had a a tertiary amine using BBr3. The compound is pretty polar so I added some triethlyamine during the flash column. The problem now is that I can't get that ET3N away from my product and its dominating my proton NMR spectra. I tried leaving it on the roto vap for awhile but that didn't do the trick.
Any techniques to get rid of the triethylamine?
Ran a purification using a teledyne ISCO automated HPLC purifier on a very polar compound. Initial TLC suggested I needed to use triethylamine (TEA) in my running solvent to get the spot to move off the base line (30% MeOH in DCM did nothing, used 10% MeOH in DCM with 1% TEA). Made a 1% TEA in MeOH and DCM solvent reservoirs for the purification. Isolated my product and concentrated it but the final weight is way off by a couple 100mg (looking for ~30mg). Been trying to azeotrope the TEA off with toluene and DCM with little improvement. Any ideas or suggestions? Next thing I'm planning on trying is a manual hand column.
Because the stuff in my TEA bottle is highly fluorescent and I can't find any source that confirms one way or the other.
Kind of urgent.
edit: what about pyridine? Why are all my organic bases fucking fluorescent?
In one of my labs, Et3N was added to "supposedly" prevent streaking on the TLC plates. I know it's a base and it will deprotonate my product, but I'm not sure how this affects it.
From a random website: > Compounds which possess strongly acidic or basic groups (amines orcarboxylic acids) sometimes show up on a TLC plate with this behavior.Add a few drops of ammonium hydroxide (amines) or acetic acid(carboxylic acids) to the eluting solvent to obtain clearer plates
I think this is pertinent information, not sure what to make of it...
Hi chemists of Reddit.
A few days ago a we decided to dry and degas several organic bases by storing them over 4A molecular sieves and bubbling nitrogen through them.
Among these bases was triethylamine. At first it appeared to have worked however after one day the liquid began to turn yellow and after two days it was all a deep yellow colour.
What's gone wrong?? Our big 'Purification of Laboratory Chemicals' book even suggests drying over sieves. If anyone could help that would be fantastic!
Thanks!
Need to know if my stuff is contaminated/expired and Google isn't giving me any confirmation either way.
We're a group of chemical engineer students (2 semester) doing a project where we try to optimize a synthesis of 2-bromcyclohexanol by using NBS and cyclohexene. One of the ways we want to try optimizing the yield and purity is by deactivating the silica column with triethylamine. (Solvent: 5% ethylacetate/95% pentane, where the ethylacetate will have to be lowered to 3% when we deactivate using triethylamine so it won't be too polar.)
The reason we want to do this is because the silica may react as a lewis acid with our product (the hydroxyl group) and create bromocyclohexene, which would be an impurity and lower yield.
Do you think this reaction between the silica and the hydroxyl is likely? Would deactivating the silica help give us a bigger yield? Do you see something we have not considered? Any advice for when we do this or do you know a study that did something similar?
Go post NSFW jokes somewhere else. If I can't tell my kids this joke, then it is not a DAD JOKE.
If you feel it's appropriate to share NSFW jokes with your kids, that's on you. But a real, true dad joke should work for anyone's kid.
Mods... If you exist... Please, stop this madness. Rule #6 should simply not allow NSFW or (wtf) NSFL tags. Also, remember that MINORS browse this subreddit too? Why put that in rule #6, then allow NSFW???
Please consider changing rule #6. I love this sub, but the recent influx of NSFW tagged posts that get all the upvotes, just seem wrong when there are good solid DAD jokes being overlooked because of them.
Thank you,
A Dad.
Phil
Well, toucan play at that game.
Martin Freeman, and Andy Serkis.
They also play roles in Lord of the Rings.
I guess that makes them the Tolkien white guys.
She said apple-lutely
'Eye-do'
This is my first post pls don't kill me lol.
The people in the comment section is why I love this subreddit!!
Cred once again my sis wants credit lol
I heard parents named their children lance a lot.
First post please don't kill me
Edit: i went to sleep and now my inbox is dead, thank you kind strangers for the awards!
So essentially I work with insects and occasionally I use triethylamine as a spray, like twice a week. I spray it for under 10 seconds into boxes and then open them up. When I use it I essentially either use it in a room with a ventilated fan or outdoors but I fan it out for a minute. I'm paranoid about getting cancer or something horrible from this. I suffer from anxiety too so that's why I'm reaching out, because it's embarrassing to ask my boss about it and I figure some people here could quell my fears, I'm fairly sure I'm just being paranoid.
I know it's not supposed to be inhaled but if any of you have worked with triethylamine before it has a very strong odor so I can smell it sometimes. It's strong enough that I'm reassured by that because it seems like the strong irritant effect kind of saves me from actual exposure, like because it's an irritant it smells strongly so I naturally avoid that smell. It smells very toxic though so I'm worried about getting specifically lung cancer lol. On the SDS it has the scary health hazard symbol, and I immediately think that's the carcinogen symbol every time I see it. But if you look at the SDS it's toxic and an irritant and bad to get on your skin but it's not classified as a carcinogen. I'm worried thought because it specifically says it's not classifiable as a carcinogen which makes me believe that the long term health effects haven't really been studied. Most of what I found was stuff about how acute exposure in high amounts can lead to eye issues but just temporarily. It is an airway irritant and can cause damage, but I can't tell based on the ppm what that means in terms of my own exposure.
As I was typing this post up I saw on one of the sheets that it said that repeated exposure can irritate the lungs and cause bronchitis in the long term. In the acute term it says that in higher exposures it can cause a buildup of fluid in the lungs and cause pulmonary edema and how that's a medical emergency. That's not a chronic thing right, like that's talking about not being able to breathe in the moment? I've had a chronic cough since starting this job (but rationally I think it is that I have a post-nasal drip, because it just seems to be a lot of mucous buildup in my nose/mouth area not my lungs really) and I'm super paranoid I either have lung cancer or bronchitis now. I've also noticed my chest feels pressure when I'm in a pool, whereas it didn't before. I know I get paranoid sometimes so I'm real
... keep reading on reddit ➡