/sci/ - Science & Math

[Anonymous No.2004841]

Whats the liquid that this mouse is in? The liquid is semi-permeable to oxygen, so you can breathe in it. I know it's an organic compound that has fluorine in it, but I can't think of the name right now. I want to say perfluorocarbon, but I feel like it's something else. Anyone?

[Anonymous No.2004853]

You're correct. You could've just googled breathable liquid or something.

[Anonymous No.2004858]

fluorocarbon....

There's a lot of different types. Donno what else to say.

[Anonymous No.2004867]

thanks bros

[Anonymous No.2004912]

>>2004867
>>2004867

that looks like a cool project, i'm gonna try it out tomorrow, thanks!

[Anonymous No.2005969]

>>You can breathe in it
lmao nope!

[Anonymous No.2005981]

It's tang.

[Anonymous No.2005987]

brb the abyss

[EK !D96TK2PSsI No.2005996]

>>2004867
prick, do not upload this shit, some guy actually tried it and went to hospital...some people ITT are gullible as fuck, so do not post things that may end up with them killing themselves you sick fucks!

[Anonymous No.2006010]

>>2005996
natural selection, it works

[Anonymous No.2006017]

>>2005996
All the more reason to post it. Cleaning the gene pool of idiocy should be public duty #1. Voting comes next.

[EK !D96TK2PSsI No.2006021]

>>2005996
sorry, not ITT (although they could be...) i meant OTI
...fucking acronyms...

[EK !D96TK2PSsI No.2006027]

>>2006017
it isn't neccessarily idiocy, its some fairly complex chemistry, just because someone doesn't know chemistry is no reason to want to try and kill them over the internet.

[Anonymous No.2006031]

>>2006027
ammonia and bleach fumes
who in their right mind would want to inhale them?
also, crystals are boring as fuck

[Anonymous No.2006034]

>>2006027
Anybody willing to mix chemicals according to something they read on the internet, without consulting alternative sources, is a fool and deserves whatever consequences he receives.

A quick google search would tell you that this is dangerous. Only the lazy and stupid would fall for this.

[EK !D96TK2PSsI No.2006050]

crystals are pretty cool, i can imagine some people would be curious enough to try and make them. i did myself when i was younger, but out of saltwater and food colouring...didn't work very well...
peoples first instincts would not be that someone is trying to kill them over the internet, most people are usually trusting at first sight (or text) and give people the benefit of the doubt. on the internet, i have the opposite method; i presume everyone is a cunt until they can prove otherwise.

[Anonymous No.2006054]

>>2006034
Or, you know, reading product information labels.

[Anonymous No.2006056]

>>2006050
Trusting people over the internet is a BAD instinct, and it's best that people grow out of this phase as quickly as possible. If it takes a trip to the hospital to teach them, so be it.

[Anonymous No.2006074]

>>2006027
the fuck?

That's ABSOLUTELY pure idiocy.

..but this is a form of murder if it kills someone who tries it.

-Try telling the police, and maybe someone on 4chan might even end up in jail!

That'd be the ultimate counter-troll. Fucking hilarious.

[EK !D96TK2PSsI No.2006077]

(pretty must just uploading picard out of habit now...even though pic unrelated)

erm, yeh, if someone actually dies though...its quite a steep learning curve...no second chances, you wont get a chance to learn not to trust people OTI, because you will be dead with 1 fuckup...potentially.
anyway, i for one could not in good conscience upload that shit. ive trolled occassionally, just to waste peoples time, but i wouldn't do anything that twisted...

[EK !D96TK2PSsI No.2006083]

and not every troll gets away scott free...
http://menmedia.co.uk/manchestereveningnews/news/crime/s/1353148_facebook_troll_jailed_after_targeti
ng_jade_goody_tribute_page

[Anonymous No.2006099]

>>2006083
>He was arrested at his home on Langport Avenue in June 28 this year after sending letters to neighbours bragging that he was an "internet troll" - someone who trawls the internet trying to cause offence, often under an assumed name.

>Paul Mitchell, prosecuting, said: "[The letters] contained two colour pictures [of Coss] with typed letters informing neighbours that he lived at this address and that in internet terms he was a 'troll'."

Why the fuck would he do that?

[Anonymous No.2006102]

>>2006027

It says RIGHT ON A BLEACH CONTAINER: DO NOT COMBINE WITH AMMONIA YOU WILL MAKE POISONOUS GAS!

I think it says the same on ammonia/glass cleaner. It's Chlorine gas right?

[Anonymous No.2006109]

>>2004867
Herpderp it makes mustardgas, or chlorinegas...
No it makes chloramine faggots, and I've tried mixing them and I didn't die. If you want to inhale that much to get yourself injured, you must go through a really nasty irritating sharp smell, and people aren't that stupid, because it hurts.

[Anonymous No.2006113]

>>2006102
not all bleach or ammonia containers have that warning.

Example:
in mexico, they don't. In south america, only a few brands do.

[Anonymous No.2006116]

>>2006099
How the could they convict him for words?

As someone made a comment on the page:
You can beat a person unconscious but not go to jail yet they are sentencing him for things he said to get a rise out of people

[Anonymous No.2006118]

>>2006109
The scary foam is just because of the detergent added to thick bleach.

[Anonymous No.2006122]

>>2006099

Because he was doing it to increase the length of his e-penis, not because he wanted to cause pain to others, like a real troll.

He's shit-tier, and he's getting the rewards of doing a shit-tier job.

[Anonymous No.2006124]

>>2006109
You forgot the penny

[Anonymous No.2006131]

>>2006124
That probably doesn't matter, it shouldn't catalyse anything, but I'll try.

[Anonymous No.2006152]

>>2006116 How the could they convict him for words?

Jury selection is basically designed around weeding out anyone who can possibly think independently.

[Anonymous No.2006169]

>>2006152
Britain doesn't have freedom of speech. Have the laws they've passed in the last ten years center around being able to prosecute you for hurting someone's feelings.

[Anonymous No.2006199]

>>2006083
Ok, too far.
That's pathetic.
And spending tax money prosecuting an irritation instead of actual criminals is laughable.
They really, really need to take a look at sentencing and standardise it so violent criminals spend .more. time in jail than petty thieves and the like.

[Anonymous No.2006203]

>>2006124

[Anonymous No.2006208]

With the penny

[Anonymous No.2006213]

Forgot pic

[EK !D96TK2PSsI No.2006214]

yeh i lol'd as well... but i dont think a guy should go to prison just for trolling... people should be able to say what they like...no matter what it is...nigger, holocaust denial, WTC conspiracy theorys, crazy religious/cultish rantings...im just not in favour of people DOING whatever they want.

[Anonymous No.2006225]

Same reaction, same speed, same chloramine smell.
Not even that much is formed, it's also used as pool desinfectant, and long before it gets leathal you can't stand the smell and will automatically gtfo

[Anonymous No.2006254]

>>2006225
Good shit

Make any illegal stuff with your chems?

[Anonymous No.2006260]

>>2006254
I produce and distribute Methamphetamines.

[Anonymous No.2006265]

>>2006260
I wouldn't be surprised
Loads of info on how to do such things

Hence how plenty of hicks in the middle of nowhere can do it

[Anonymous No.2006281]

>>2006254
No not really drugs, just explosives for fun.
First picture, jar on the right, hexamine for HMTD for example.

Solution turned blue now btw, the copper penny is slowly dissolving probably forming Cu(OCl)2

[Anonymous No.2006291]

>>2006214
>.m just not in favour of people DOING whatever they want.
>is on 4chan

Fucking lol.

[Anonymous No.2006313]

>>2006291
DOING and SAYING are not equivalent

>>2006281
How do you dispose of the spent reaction?

[Anonymous No.2006321]

>>2006313
Collect in a jerrycan, contains all sorts of heavy metal salts, manganese, vanadium, mercury, lead etc. And just dispose of it as chemical waste, they'll come once in a while to collect it.

[Anonymous No.2006331]

>>2006281

Post blue solution.

Also, highschool student here, chemistry interests me but I never had chance to do and experiment (crappy school). Where did you get your vials, chemicals etc ?
Internet is my guess, any specific sites ?

[Anonymous No.2006349]

>>2006321
They don't charge for chemical waste?

What do you blow up? Giant firecrackers seems like it would get boring

[Anonymous No.2006371]

>>2006331
Yes some things like caesium chloride from internet, stuff like vanadium pentoxide, lithiumcarbonate, chromiumsalts are from a local potteryshop (it's also used in glazing the pottery), and some things are just from the lab. I know the man from the chemicals inventory, and sometimes somthing gets "out of date" like permanganate, while it's still very good stuff, or sulfuric acid, because some chemical have very accurate molarities, and after opening some times and using them, the concentration gets inacurate, which makes it useless for analytical chemistry. And I sometimes get some of that stuff, or for a decent price.

[Anonymous No.2006385]

>>2006349
No, once a month a so called "chemokar" comes driving by, and you can deposit up to 50kg per time, with a maximum of 200kg a year free of charge.

[Anonymous No.2006567]

just curious, why do you have flasks and beakers on hand?

[Anonymous No.2007780]

>>2006567
I do it for teh lulz

No really, it's ideal, if you read about some fun experiment, and you can try it at home. It's all about your interests.

[Anonymous No.2007851]

>>2006203
Looks like a bomb factory
>some things like caesium chloride from internet, stuff like vanadium pentoxide, lithiumcarbonate, chromiumsalts are from a local potteryshop (it's also used in glazing the pottery), and some things are just from the lab. I know the man from the chemicals inventory, and sometimes somthing gets "out of date" like permanganate, while it's still very good stuff, or sulfuric acid
lol, further confirming my original hypothesis, and
>>2007780
>I do it for teh lulz
>for teh lulz
>teh lulz
uh huh, Confirmed, lol takes 1 to know 1

[Anonymous No.2007938]

>>2007851
vanadium pentoxide and lithiumcarbonate don't have much to do with explosives, but you can do reactions with awesome colours.
And the rest... yes.
I was planning on doing electrolysis on caesium chlorido to make caesium chlorate, as an oxidator for an alternative flash-mixture. Should give a nice bright violet flame.

[Anonymous No.2008015]

>>2006225
eh, I hope you know what you're doing
it forms chloramine in a high pH (~6.5+) environment
and chlorine gas in a low pH (~6-) environment

[Samefag No.2008053]

>>2008015

You're adding base (NH3 and NaClO->ClO-) to a DIW solution. The PH will be high enough to form chloramine.

[Anonymous No.2010244]

>>2008053
Indeed, it's chloramine. pH measurements show a pH of about 13-14.

Pic is the day after, it's beautiful. I think it's mainly the ammonia that has reacted to form this beutiful tetraammoniumcuprate complex (NH3)4Cu2[2+]

[Anonymous No.2010531]

This thread is now about home chemistry

bumping with hommade sodium

[Anonymous No.2010533]

>>2010531

[Anonymous No.2010551]

Very small scale chemical garden, containing a blue vanadium(IV) salt, chromium(II)chloride, nickle nitrate, potassium ferricyanide and coppersulfate

[Anonymous No.2010816]

Nitration of N,N-dimethylaniline to yield Tetryl (the stuff used in landmines

No other /sci/entists here doing syntheses at home?

[Anonymous No.2010819]

[Anonymous No.2010823]

[Anonymous No.2010824]

[Anonymous No.2010828]

Product after filtering, washing and recrystallising from benzene (71% yield) moistured for safety

[Anonymous No.2010830]

>>2010824
Vacuum?

[Anonymous No.2010924]

>>2010830
Yes, it's vacuümfiltration through a buchner funnel. It is waaaaay faster than gravity filtration but only useful if the filtered product is the desired product instead of the filtrate.

[EK !D96TK2PSsI No.2010946]

oh wow this thread survived a long time...it doesn't even have any colouring for me to do and it has passed the 30 hour mark....
:D

[Anonymous No.2011444]

>>2010946
lolwat

[Anonymous No.2012930]

Bumpan with synthesis of terephtalic acid from 1 PET bottle (about 22 grams)

[Anonymous No.2012939]

Cut up pieces of PET bottle are boiled in NaOH dissolved in propyleneglycol to yield ethyleneglycol and therephtalate

The vapors have a nice sweet taste

[Anonymous No.2012943]

After adding hydrochloric acid to convert the terephtalate to the bad soluable tereftalic acid, the mixture is filtered by vacuüm filtration trough a Büchner funnel

[Anonymous No.2012951]

The finished and dried product, don't know the amount in grams anymore, but it was a yield of about 95% of theoretical.

[Anonymous No.2012961]

>has no hood

>refluxes in nitric or sulfuric acid


>MFW OP is inhaling terrible toxins


you fucking moron... you can build a hood with 40 bucks:

go to OSH or Home Depot, go to the section where they sell central heating stuff (like insulated tubing)...

find a pyramidal shaped vent housing.

go to the bathroom section and get the cheapest bathroom in-line ceiling vent fan you can.


get some tubing... connect fan to pyramidal vent housing, connect tubing to fan, connect other end of tubing to a hole in the wall or just pipe it outside


works fine so long as you are not working with anything significantly flammable (gotta get brushless/sparkless fan for that).


also get a fucking real lab set, and start using a reflux condenser.


get some big syringes and fill em up with NaOH pellets, and cap it with cotton, then close up everything with septums and pierce the septum with a needle that connects to the acid filtering NaOH plug


jesus christ this is basic ass lab skills. I learned this in my 2nd Gen-chem lab.


also, unless you WANT SO3, always boil your H2SO4 before you use it.

[Anonymous No.2012966]

>>2012951

>assumes that acid hydrolysis will completely depolymerize all chains


>assumes that oligomeric PET will not behave identically to monomeric PET in the conditions of his experiment


>95% yield

>IRL its about 20% monomer

[Anonymous No.2012987]

>>2012961
I am not refluxing my tetryl, it must maintain a steady 70 degrees celsius. I use moistured cotton wool to seal the part between the dropping funnel and the erlenmeyer, and that absorbs nitrous oxides and SO3 really well. Using reflux condensers for nitrations is useless, the vapours will escape because they're gases, and not liquid at room temperature, they're just really soluable in water, hence the moistured cotton wool.

[Anonymous No.2013044]

>>2012966
What acid hydrolysis? I used sodium hydroxide in propyleneglycol. Also, the pieces of PET dissolved completely and were allowed to boil for an extra half hour in the mixture.
Purification happens by treating the sodium salt (which is initially formed) with acid.
The product also sublimed at around 300 degrees in a heatbox and that will not happen with the polymeric forms.

But here, have a picture of my cat, because of caturday

[Anonymous No.2013066]

>>2012951
Fucking cripes home lab people scare me. I get the feeling most of them are setup by morons with delusions of adequacy. I make fun of safety procedures all the time in lab but man, those pics are just scary. I would hate to see what is not shown and how waste is disposed of.

[Anonymous No.2013082]

>>2013066
Waste disposal is very well taken care of in my country.
>>2006385