Sciencemadness Discussion Board
Not logged in [Login ]
Go To Bottom

Printable Version  
Author: Subject: Other acids than oxyacids
vmelkon
International Hazard
*****




Posts: 640
Registered: 25-11-2011
Location: Canada
Member Is Offline

Mood: autoerotic asphyxiation

[*] posted on 12-3-2015 at 08:28
Other acids than oxyacids


We see HNO3, H2SO4, HClO4 often in textbooks but do other exotic acids exist?

I am thinking of Arrhenius acids.

There is something called magic acid
http://en.wikipedia.org/wiki/Magic_acid

but again, you have a H and O bond.
Fluoroantimonic acid (H2FSbF6) looks interesting.
How about something like H2SeS4 (equivalent to H2SO4)?
H3PS4? (equivalent to H3PO4)
H3AsS4 (equivalent to H3AsO4)

O 3.44
N 3.04
S 2.58
Cl 3.16
P 2.19
As 2.18




Signature ==== Is this my youtube page? https://plus.google.com/u/0/102731756100318541546/videos?tab...
We must attach the electrodes of knowledge to the nipples of ignorance and give a few good jolts.
Yes my evolutionary friends. We are all homos here.
View user's profile View All Posts By User
Etaoin Shrdlu
International Hazard
*****




Posts: 724
Registered: 25-12-2013
Location: Wisconsin
Member Is Offline

Mood: Insufferable

[*] posted on 12-3-2015 at 09:52


Define "exotic acid." I'm not really sure where you're going with this.
View user's profile View All Posts By User
Amos
International Hazard
*****




Posts: 1225
Registered: 25-3-2014
Location: Yes
Member Is Offline

Mood: No

[*] posted on 12-3-2015 at 11:18


Non-oxoacids? How about HF, HCl, HBr, HI, H2S, HN3(hydrazoic acid), and HCN(hydrogen cyanide or prussic acid)? Orare you just looking for "exotic" lesser-known acids in general?

This may also interest you: http://en.wikipedia.org/wiki/Thiophosphate

Selenophosphate, a dihydrogen phosphate ion in which the oxygen double bonded to phosphorus is replaced by selenium, is of biological importance in that it is used to biosynthesize selenocysteine, an unusual amino acid.

Section 2.4 of this paper mentions the synthesis of sodium thioarsenate (Na3AsS4), which would be the sodium salt of one of the acids you mentioned.

[Edited on 3-12-2015 by Amos]




View user's profile View All Posts By User
vmelkon
International Hazard
*****




Posts: 640
Registered: 25-11-2011
Location: Canada
Member Is Offline

Mood: autoerotic asphyxiation

[*] posted on 12-3-2015 at 11:28


I wasn't clear with the question. I was wondering if molecules where the O is replaced with something else in its group, such as sulfur, have been produced.



Signature ==== Is this my youtube page? https://plus.google.com/u/0/102731756100318541546/videos?tab...
We must attach the electrodes of knowledge to the nipples of ignorance and give a few good jolts.
Yes my evolutionary friends. We are all homos here.
View user's profile View All Posts By User
Amos
International Hazard
*****




Posts: 1225
Registered: 25-3-2014
Location: Yes
Member Is Offline

Mood: No

[*] posted on 12-3-2015 at 11:30


I updated the post above with some new stuff.



View user's profile View All Posts By User
vmelkon
International Hazard
*****




Posts: 640
Registered: 25-11-2011
Location: Canada
Member Is Offline

Mood: autoerotic asphyxiation

[*] posted on 13-3-2015 at 06:51


Thanks. It's good to know and knowing is half the battle.



Signature ==== Is this my youtube page? https://plus.google.com/u/0/102731756100318541546/videos?tab...
We must attach the electrodes of knowledge to the nipples of ignorance and give a few good jolts.
Yes my evolutionary friends. We are all homos here.
View user's profile View All Posts By User
bismuthate
International Hazard
*****




Posts: 803
Registered: 28-9-2013
Location: the island of stability
Member Is Offline

Mood: self reacting

[*] posted on 13-3-2015 at 10:56


http://en.wikipedia.org/wiki/Thiosulfuric_acid
Although a big problem is that sulfides tend to react in acidic environments.
There are also chlacogen-cyanates which are rather common.




I'm not a liar, I'm just an enthusiastic celebrant of opposite day.
I post pictures of chemistry on instagram as bismuthate. http://iconosquare.com/bismuthate
or this viewer if you don't have an instagram (it sucks though) http://web.stagram.com/n/bismuthate
View user's profile Visit user's homepage View All Posts By User
PHILOU Zrealone
International Hazard
*****




Posts: 2879
Registered: 20-5-2002
Location: Brussel
Member Is Offline

Mood: Bis-diazo-dinitro-hydroquinonic

[*] posted on 14-3-2015 at 07:50


Nitroform HC(NO2)3
Phenol HO-C6H5
Cyanoform HC(C#N)3
Trinitroaniline H2N-C6H2(NO2)3
Tetrazole cyclo(-CH=N-N=N-NH-)
Nitrotetrazole cyclo(-C(NO2)=N-N=N-NH-)

[Edited on 14-3-2015 by PHILOU Zrealone]




PH Z (PHILOU Zrealone)

"Physic is all what never works; Chemistry is all what stinks and explodes!"-"Life that deadly disease, sexually transmitted."(W.Allen)
View user's profile View All Posts By User
unionised
International Hazard
*****




Posts: 4154
Registered: 1-11-2003
Location: UK
Member Is Offline

Mood: No Mood

[*] posted on 14-3-2015 at 10:03


http://en.wikipedia.org/wiki/Thiophosphate
http://en.wikipedia.org/wiki/Thiocarboxylic_acid
View user's profile View All Posts By User
blogfast25
Thought-provoking Teacher
*****




Posts: 10334
Registered: 3-2-2008
Location: Old Blighty
Member Is Offline

Mood: No Mood

[*] posted on 14-3-2015 at 18:16


Hexachlorostannic acid, H<sub>2</sub>SnCl<sub>6</sub>, a strong acid from which a crystalline hydrate can be isolated, acc. Holleman ('Inorganic Chemistry'). Ammonium and potassium salts are easy to prepare and crystallise nicely because of low solubility at O C.

[Edited on 15-3-2015 by blogfast25]




View user's profile Visit user's homepage View All Posts By User
sparkgap
International Hazard
*****




Posts: 1233
Registered: 16-1-2005
Location: not where you think
Member Is Offline

Mood: chaotropic

[*] posted on 15-3-2015 at 15:58


I'd consider cyclopentadiene and acetylacetone to be acids, myself.

sparky (~_~)




"What's UTFSE? I keep hearing about it, but I can't be arsed to search for the answer..."
View user's profile View All Posts By User
woelen
Super Administrator
*********




Posts: 7017
Registered: 20-8-2005
Location: Netherlands
Member Is Offline

Mood: interested

[*] posted on 16-3-2015 at 10:12


An acid, which can be made and isolated fairly easily by an amateur is H4Fe(CN)6. This is a moderately strong acid (for the release of the first H-atom).

But, despite all the examples, given in this thread, oxoacids are by far the most common ones. Nearly every element, capable of forming acids, allows formation of oxoacids. Next, after oxoacids, are the fluoroacids. Fluoroacids are less numerous, because they require more fluorine atoms to be bonded to the central element, but there are quite a few acids, some of them quite stable even in aqueous solution:

HBF4 (stable in aqueous solution, colorless, can be purchased as 40% solution in water)
HPF6
HSb6
H2TiF6 (stable in aqueous solution, colorless)
H3TiF6 (stable in aqueous solution, forms deep green solutions)

There are also mixed oxo-fluoro acids, with OH-groups replaced by F.:

HO-SO2F --> derived from SO2(OH)2
(HO)2-POF --> derived from PO(OH)3
(HO)2-TeF4 --> derived from Te(OH)6
(HO)4-TeF2 --> derived from Te(OH)6
There probably are more.




The art of wondering makes life worth living...
Want to wonder? Look at https://woelen.homescience.net
View user's profile Visit user's homepage View All Posts By User

  Go To Top