The Periodic Table

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Aaron Abraham

10:45

@Jan @ortho @M.A.R. TRUMP WON!!! ^_^ BAWAHAHAHAHAHAHAHA!!! So @ortho, what happened to your "prediction" about Clinton winning O seer/seal? 3:)

BAWAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHA!

cough cough

HAHAHAHAHAHAHAHA!

cough wheeze

BWAHAHAHAHAHAHAHAHAHA!

drinks water

waits a bit

HAHAHAHAHAHAHA! X'D

@Kaumudi Nah, I didn't write KVPY ._. The Boards are scarier o.o. By the way, which exams d'ya plan on appearing for? (I'm guessing you're the type that's aiming for the engineering stream ._.) [P.S- I couldn't care less if you're a Malayali or not XD. So you don't really have to try convincing me otherwise ;)]

user228700

11:47

@AaronAbraham The boards aren't too bad. I plan on appearing for engineering entrance exams.

user228700

Well, alright then.

hBy2Py

14:04

@orthocresol It may actually not have been appropriate for me to make the edit. There are dialects of English where 'ran' (some organic reactions are ran) would be the common usage. But, the plural "continuing"(?) passive of run in this case is some organic reactions are run in standard English.

</ELU diversion>

orthocresol

@hBy2Py I admit I don't know much about these formalisms. For the most part, I go with "how would I say it in real life?" which usually works pretty well, but fails quite badly with the more subtle aspects of the language. ;)

hBy2Py

15:00

@orthocresol I'm rather a grammar nerd, so I can get hung up on details like this. :-)

2 hours later…

9-BBN

17:27

Is there really absolutely no reaction which happends in antara/antara approach ?

2 hours later…

Jan

19:40

@AaronAbraham Yes, and now I’m positively scared whether the world will survive the next four years.

Brb buying canned food and renting a bunker.

Loong

19:57

area51.stackexchange.com/proposals/104215/canada/104217#104217

Jan

orthocresol

@Loong LOL

1 hour later…

9-BBN

21:33

Q: When does Phenolphthalein containing solution change colour?

Were were estimating the amount of dissolved CO2 in water using the American Public Health Association method. It was a Titrimetric Method using phenolphthalein indicator. Titrant used was NaOH and analyte was sample water. The following questions came to my mind: Why do phenolphthalein[HIn] ...

Its alright. I'm glad to receive a little consolation after being so much confused. b/w means between. Reply whenever you are free. Thank you. — Sanjukta Ghosh 9 mins ago

"http://chemistry.stackexchange.com/questions/62433/why-do-we-say-theres-no-co2-‌present/62436?noredirect=1#comment106861_62436"

I can see two different question for the same one is that normal ?

questions

Mithoron

@9-BBN Huh?

@9-BBN Well OP posted two similar questions... that's it.

If they were identical, that would be reason for confusion

9-BBN

22:05

Well when I copy paste both links in the chat only one appears

but both links are différentes ugh

chemistry.stackexchange.com/questions/62433/…‌‌present/62436?noredirect=1#comment106861_62436

Mithoron

@9-BBN dunno, there may be some limiting mechanism

@Jan :D

Jan

22:22

Also: satwcomic.com/makeover-of-2016

orthocresol

chemistry.stackexchange.com/questions/62433/…‌‌present/62436?noredirect=1#comment106861_62436

interesting

the word present probably breaks something

http://chemistry.stackexchange.com/questions/14818/do-certain-cumulated-dienes-‌present-geometric-isomerism#comment106867_14818

testing a comment out sorry — orthocresol ♦ 26 secs ago

Jan

I would have blamed the number initially.

orthocresol

chemistry.stackexchange.com/questions/62433/…‌‌present#comment106861_62436

¯\_(ツ)_/¯

Jan

Okay, that obviously doesn’t work. =C

@SanjuktaGhosh I add some calculation for you. I let you find the result by yourself if you're doing chemistry it would be not too hard. :-) — 9-BBN 2 hours ago

I know, I’m being sneaky …

9-BBN

@Jan about what are you speaking?

What doesn't work ?

Jan

22:33

The link directly to the comment.

1,3-feeds

22:59

Q: When editing posts that are consistently or overwhelmingly written in one flavour of English, please do not change the flavour

I was rather unhappy with an edit to a post of mine (which I immediately rolled back as soon as I saw it). While one may debate about whether mannonic acid or mannuronic acid is formed in an oxidation of that type and the first equation was (deliberately!) incomplete I was especially unhappy abou...

discussion editing spelling

9-BBN

Q: Formaldehyde from Urea?

I was wondering if it is possible to make formaldehyde (1) from urea (2). I noticed that they have a similar structure, but the two hydrogen atoms in formaldehyde are replaced with two amide groups in urea. Would it be possible to remove those groups and replace them with hydrogen?

organic-chemistry synthesis

I am thinking I found something which works I found a great publication about reduction of carbonic acid derivative but is my first step probable ?

Jan

Yes. Although the reaction will proceed very slowly.

pentavalentcarbon

Q: Is it possible to crystallize and extract electrons

Okay, I know that this reads ridiculous insane, but one can obtain solvated electrons by adding sodium metal to liquid ammonia solution. The chemical reaction as written in my inorganic chemistry textbook is this: $$\ce{Na + x NH3 -> Na+ + e(NH3)_x-}$$ A metallic sheen is observed, and it su...

inorganic-chemistry experimental-chemistry electrons

ಠ_ಠ

That title is ridiculous

9-BBN

Then I use NaOH to keep only one of both hydrogens and using $[Fe(H)(H_2)(PP_3)][BF4]$ in H2O/THF (10/1) 80°C, 5h we must obtain HCOOH with a yield of 88%

I forget the $H_2$ at 60 bars

forgot

ugh

english ..

Mithoron

23:17

@pentavalentcarbon Hmm... Whole post could be rewrited with proper stuff but...

pentavalentcarbon

there's some stuff in it that I don't understand

seems pretty neat though

Mithoron

And here comes better title

pentavalentcarbon

I almost like the sensationalist one more

pretty good for "chemistry clickbait"

Mithoron

@pentavalentcarbon :)

9-BBN

Well I have read carefully so i can't do like the did

But can I use LiAlH4 to obtatin HCOH from carbonic acid ?

I'd like to say yes but I'm not sure

Mithoron

23:29

@9-BBN o.O

9-BBN

Did I say something wrong ? ^^

Mithoron

You've got to be kidding me

How on Earth did you get that idea

9-BBN

Nucleophilic attack of hydrid in C=0 then release of OH- because LiAlH4 is very very basic

And once again

Mithoron

HCOH is a carbene... and... and... Just no, you can't

9-BBN

I said

HO(CO)OH + LiALH4 will give HCOH

Mithoron

23:35

You mean formaldehyde?

9-BBN

I mean doing this

Mithoron

Can't get it too

9-BBN

Why ?

So I have an alternative which shows at least I know a bit of organic chemistry ^^

Mithoron

And write it H2CO or CH2O but not like this

9-BBN

From urea I can do Eschweiler Clarke methylation in both side. Then I will have a bi Weinreb amide then I use LiAlH4

But it doesn't tell me why what I thought about carbonic acid to methanal can't works ^^

What is fun with my Eschweiler Clarke is that I will need methanal to synthesis after some step...methanal

Mithoron

23:41

You'd get sodium carbonate. Then maybe it would be further reduced but you wouldn't be able to control

You generally don't make aldehydes with strong reductants

9-BBN

Eschweiler–Clarke reaction

The Eschweiler–Clarke reaction (also called the Eschweiler–Clarke methylation) is a chemical reaction whereby a primary (or secondary) amine is methylated using excess formic acid and formaldehyde. Reductive amination reactions such as this one will not produce quaternary ammonium salts, but instead will stop at the tertiary amine stage. It is named for the German chemist Wilhelm Eschweiler (1860–1936) and the British chemist Hans Thacher Clarke (1887-1972). == Mechanism == The first methylation of the amine begins with imine formation with formaldehyde. The formic acid acts as a source of hydride...

You sure ? ^^

Mithoron

Whatever... Why would anyone synthesize methanal?

9-BBN

This is a question

Iwill propose an answer even if this is awfull to do that

Have you ever read in mathoverflox "awfully sosphisticated proof for simple facts"?

This is brilliant lol

Mithoron

Whatever... g'night!

9-BBN

See you