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

Printable Version  
Author: Subject: The reaction question thread.
bismuthate
National Hazard
****




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

Mood: self reacting

[*] posted on 7-12-2013 at 03:54
The reaction question thread.


I thought it would be nice to have a thread where people can ask how does ******** react with ********. So I'll start off.
NaNH2+PH3==>NaPH2+NH3?
2Na+2PH3==>2NaPH2+H2?
3NaNO3+AsCl3==>As(NO3)3+3NaCl?

[Edited on 7-12-2013 by bismuthate]

[Edited on 7-12-2013 by bismuthate]




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
Random
International Hazard
*****




Posts: 1018
Registered: 7-5-2010
Location: In ur closet
Member Is Offline

Mood: Energetic

[*] posted on 7-12-2013 at 05:41


Many reactions are possible but another question is under what conditions.

For example hydrogen and ammonia looks simple on paper until you see actual pressure and heat required.
View user's profile View All Posts By User
bismuthate
National Hazard
****




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

Mood: self reacting

[*] posted on 7-12-2013 at 06:17


Yeah it would be nice if people added in under what conditions they react, but this is just a question of how a reaction proceeds.



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
Zyklon-A
International Hazard
*****




Posts: 1547
Registered: 26-11-2013
Member Is Offline

Mood: Fluorine radical

[*] posted on 5-3-2014 at 20:11


I was wondering if barium nitrate could react with potassium perchlorate to make barium perchlorate and potassium nitrate.
Solubility of perchlorate is 66.48 g/100 mL (25 °C), While potassium perchlorate is only 1.5 g/100 mL (25 °C).
I think it wont work actually, just looking at the solubility data.
Can anyone provide a professional opinion on the subject?




View user's profile View All Posts By User
mnick12
Hazard to Others
***




Posts: 404
Registered: 30-12-2009
Location: In the lab w/ Dr. Evil
Member Is Offline

Mood: devious

[*] posted on 5-3-2014 at 21:39


Quote: Originally posted by Zyklonb  
I was wondering if barium nitrate could react with potassium perchlorate to make barium perchlorate and potassium nitrate.
Solubility of perchlorate is 66.48 g/100 mL (25 °C), While potassium perchlorate is only 1.5 g/100 mL (25 °C).
I think it wont work actually, just looking at the solubility data.
Can anyone provide a professional opinion on the subject?


Indeed the poor solubility of potassium perchlorate indicates that the equilibrium highly favors KClO4 over Ba(ClO4)2. Potassium perchlorate is kind of a dead end for making other perchlorates. Sodium perchlorate or would be a better option, however if the intended use is pyrotechnic applications removing all the sodium ions could be very difficult. I would start with ammonium perchlorate, although it is more expensive.
View user's profile View All Posts By User
Zyklon-A
International Hazard
*****




Posts: 1547
Registered: 26-11-2013
Member Is Offline

Mood: Fluorine radical

[*] posted on 6-3-2014 at 05:55


Ammonium perchlorate is generally made from perchloric acid.

Quote:

.......however if the intended use is pyrotechnic applications......

No, I'll be using it to make perchloric acid, according to this reaction: Ba(ClO4)2 (aq) + H2SO4--> BaSO4 (s) + HClO4 (aq).
I guess I can find another method to make barium chlorate.




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




Posts: 4281
Registered: 1-2-2013
Location: The tiniest college campus ever....
Member Is Offline

Mood: Semi-victorious.

[*] posted on 6-3-2014 at 09:24


Quote:
I thought it would be nice to have a thread where people can ask how does ******** react with ********. So I'll start off.
NaNH2+PH3==>NaPH2+NH3?


It should. Phosphine will be a stronger acid than ammonia. Nasty stuff to work with, though.

Quote:
2Na+2PH3==>2NaPH2+H2?


It should. I know that triphenylphosphine will react with sodium to give NaPPh2 and NaPh (which was protonated under the reaction conditions, but I don't recall what they were).

Quote:
3NaNO3+AsCl3==>As(NO3)3+3NaCl?


I doubt it. The arsenic-chlorine bond has significant covalent character, and I wouldn't expect the nitrate to bond as strongly.


[Edited on 6-3-2014 by DraconicAcid]

[Edited on 6-3-2014 by DraconicAcid]




Please remember: "Filtrate" is not a verb.
Write up your lab reports the way your instructor wants them, not the way your ex-instructor wants them.
View user's profile View All Posts By User

  Go To Top