Yeah my aspirators can make water boil at room temp, maybe even a bit colder but it isn't violent boiling, just a few bubbles. Hot water boils like crazy, however.
Vesp
- Administrator
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heisenberg
- Dominant Queen
- Posts: 268
45C is about 120-125mm. The chart you are looking for is called a nomograph
http://chemistry.kenyon.edu/getzler/Research%20files/nomograph.gif
Here's a flash nomograph.
basstabone
- Pupae
- Posts: 50
Well Im just happy to have it up and running! Ill do some experiments with cold water and see what vacuum I can pull
Bluebottle
- Subordinate Wasp
- Posts: 125
Nevermind... I rescind my question, I realised why borate esters wouldn't work.
basstabone
- Pupae
- Posts: 50
I was wondering if anyone had a guide or TEK on making pills. I can't find anything on it. Don't know if I'm just not looking hard enough or what...
Douchermann
- Dominant Queen
- Posts: 397
I have one but it's not finished. You'll find it on my site soon enough haha.
Sedit
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Some one recently asked me if I had experiance with performing the Hofmann Rearrangement on Acetamide in order to produce Methylamine which I do not. He said there is some issues that he may be running into.
Is there anyone here that has had success with this route that has anything they could add?
Is there anyone here that has had success with this route that has anything they could add?
basstabone
- Pupae
- Posts: 50
Also got a question. My p-benzoquinone is more orange than yellow and it wont clear up. Is it good as is or what?
Douchermann
- Dominant Queen
- Posts: 397
It's fine as is. I bet it would clear up if you did one more isopropyl recrystallization. The orange color is from left over iodine from the reaction mix. However, it's probably not worth it to you, being that even 95% purity benzoquinone will work just as well as 99.999% will. Don't forget to keep a cap on your BQ; it sublimes (slowly but surely)
Douchermann
- Dominant Queen
- Posts: 397
@bastabone -
My tableting page is finally up. I got all those tedious ass calculations done (you'll see what I mean when you read through). Tell me what you think, and what you think I should add or subtract haha.
http://127.0.0.1/Douchermann/pharm/tableting.html
The pharmaceutical section is not open at the moment, so the only way to access the tableting page is through that link, or to know the link yourself.
My tableting page is finally up. I got all those tedious ass calculations done (you'll see what I mean when you read through). Tell me what you think, and what you think I should add or subtract haha.
http://127.0.0.1/Douchermann/pharm/tableting.html
The pharmaceutical section is not open at the moment, so the only way to access the tableting page is through that link, or to know the link yourself.
Happyman
- Subordinate Wasp
- Posts: 122
I got one with deep metaphorical value. So when you place a solution that's going to be an exothermic reaction on an ice bath would you want it in a good, thick insulating container, something like glass (remembering that if you cooled the glass beforehand it would be harder to heat up), or would you want to place it in a poor, thin insulating container (i.e. plastic bottle)?
P.S. The solution nor byproducts will dissolve either one and if it heats up to much your yields will be so low it wouldn't even be worth extracting.
P.S. The solution nor byproducts will dissolve either one and if it heats up to much your yields will be so low it wouldn't even be worth extracting.
heisenberg
- Dominant Queen
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This one isn't mine, a friend wanted me to ask it. What's the best way to remove methylamine stench from a car seat?
Sedit
- Global Moderator
- Foundress Queen
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LOL a car seat? Was his baby playing with his Methylamine? Well anyway try washing it with an acidic solution of some kind. I would say vineger but then you got another smell to deal with. Atlest that one wont smell like fish though.
Vesp
- Administrator
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How did it get on there?
What form is it in?
Dilute HCl or vinegar to turn it into its a salt?
Possibly add NH3 soln. and vac. it - the MeNH2 wouldn't be in any salt form, and so should float away, especially if you vacuum it.
...maybe just sit it in the sun?
What form is it in?
Dilute HCl or vinegar to turn it into its a salt?
Possibly add NH3 soln. and vac. it - the MeNH2 wouldn't be in any salt form, and so should float away, especially if you vacuum it.
...maybe just sit it in the sun?
heisenberg
- Dominant Queen
- Posts: 268
He foolishly stacked a trashbag in his backseat sideways, leaking a few drops of solution out. When he first asked me how to do it, he got mad because I just replied, "that's rough".
Agent Madhatter
- Guest
Heres a simple question...actually its two parts.
1. How do you tell if a chemical you have is the L or D formation? For alot of chemicals this can mean activeness or in activeness so its something I should know. If you don't want to tell me, just tell me what the process is called so I can look it up in my book.
2. How do you draw chemical structures? Like I know most carbons form at 105 degrees so how do you find out where what chemical bonds with what carbon and what oxygen has extra electrons and what nitrogen has double bonds? Actually...I know the last one. But how do you find out what chemicals are more reactive that others? Like where would I find out that mixing HCl with a chemical, will cause the Chlorine to react with my chemical? What is this form of study called?
So much for short questions...lol
1. How do you tell if a chemical you have is the L or D formation? For alot of chemicals this can mean activeness or in activeness so its something I should know. If you don't want to tell me, just tell me what the process is called so I can look it up in my book.
2. How do you draw chemical structures? Like I know most carbons form at 105 degrees so how do you find out where what chemical bonds with what carbon and what oxygen has extra electrons and what nitrogen has double bonds? Actually...I know the last one. But how do you find out what chemicals are more reactive that others? Like where would I find out that mixing HCl with a chemical, will cause the Chlorine to react with my chemical? What is this form of study called?
So much for short questions...lol
Vesp
- Administrator
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http://en.wikipedia.org/wiki/Enantiomer
http://en.wikipedia.org/wiki/Chirality_(chemistry)
Dunno what you are trying to ask for your second question exactly, but I think these links will help...
http://www.geocities.com/capecanaveral/lab/4097/chem/chap4/periodictrends.html
http://www.meta-synthesis.com/webbook/24_complexity/periodic_trends.jpg
also check this out.. pretty neat: http://www.youtube.com/watch?v=HP14LAEy9BY
http://en.wikipedia.org/wiki/Chirality_(chemistry)
Dunno what you are trying to ask for your second question exactly, but I think these links will help...
http://www.geocities.com/capecanaveral/lab/4097/chem/chap4/periodictrends.html
http://www.meta-synthesis.com/webbook/24_complexity/periodic_trends.jpg
also check this out.. pretty neat: http://www.youtube.com/watch?v=HP14LAEy9BY
Agent Madhatter
- Guest
Thanks for the wiki. I read some of it, but I guess a more appropriate question would be in an example.
I bought some Tartaric acid c19. I have no clue if its D-Tartaric Acid, L-Tartaric acid, or D(L)-Tartaric acid.
How would I find out?
I bought some Tartaric acid c19. I have no clue if its D-Tartaric Acid, L-Tartaric acid, or D(L)-Tartaric acid.
How would I find out?
Vesp
- Administrator
- Foundress Queen
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http://en.wikipedia.org/wiki/Polarimeter
http://en.wikipedia.org/wiki/Polarimetry
I think this should help with that...
Also:
http://en.wikipedia.org/wiki/Tartaric_acid#Stereochemistry
http://en.wikipedia.org/wiki/Polarimetry
I think this should help with that...
Also:
http://en.wikipedia.org/wiki/Tartaric_acid#Stereochemistry
Agent Madhatter
- Guest
I'm still not getting it... If I make a homemade polarimeter how will I know which one is which? Where do I find out what L makes and what D makes (Light wise). Is there some chart? Or does it have to do with some equation of the molecule? You know what I mean? Like you can tell if something is polar by adding the electro negativity of all the chemicals in the molecule.
So what would I do to find out that D makes a certain color, and L makes a different color?
I'm completely lost. Under my table of contents would it be under Spectroscopy? If so....lol I'm about two months of reading from it.
I don't need to know right away, I just thought there might be a test, like adding one chemical to D-Tartaric would make (just a random guess) a blue solution, and L-Tartaric would make red.
There is no method like that?
So what would I do to find out that D makes a certain color, and L makes a different color?
I'm completely lost. Under my table of contents would it be under Spectroscopy? If so....lol I'm about two months of reading from it.
I don't need to know right away, I just thought there might be a test, like adding one chemical to D-Tartaric would make (just a random guess) a blue solution, and L-Tartaric would make red.
There is no method like that?