[blackpearlheart]

Full properties of znso4 n

How can i dissociate ZnSO4?? pls help..

[Borek]

You just don't ask. You try, you tell us what you did, we push you in the right direction.

[blackpearlheart]

Sorry..

i used the equation..

Zn + H2SO4 --> ZnSO4(aq) + H2(g)


i want to dissociate ZnSO4 because i dont want any harmful substance to be produced..

is there any way that i can seperate it as .. ZnO + SO3 ...? and any kind of membrane that can filter those SO3 ? or is their anyother way to dissociate ZnSO4?

thnkz in advacne 

[Arkcon]

For starters, you are using an incorrect term.  To dissociate means "to separate into ions, for example in water."  Something like:

ZnSO₄   Zn²⁺ + SO₄^2-

i want to dissociate ZnSO4 because i dont want any harmful substance to be produced..

Even discounting your incorrect word, I can't understand what you mean.

is there any way that i can seperate it as .. ZnO + SO3 ...?

OK, you want to decompose ZnSO4.  Into ZnO and SO3.  But SO3 doesn't exist.  And that product unbalances the oxygen from the reaction.  You could get SO2 gas, but that is toxic, and ZnSO4, not very toxic.  Again, I don't understand what you mean

and any kind of membrane that can filter those SO3 ?

You want a membrane to drive a decomposition reaction?  No.  That is not possible.  That is neglecting the very basics of chemistry.

or is their anyother way to dissociate ZnSO4?

Yes.  You can roast the dry solid, and the SO2 will fly off, leaving ZnO.  But you need to learn more chemistry before you can do these sorts of things.

[Borek]

But SO3 doesn't exist.

[Arkcon]

But SO3 doesn't exist.

     Sulfur trioxide is stable?  Oh yeah, that's right, SO2 is oxidized to SO3, right.  I forgot, for a moment, how H2SO4 is manufactured.  Heh.  oops.  We need a blushing emoticon.  Still, I don't think sulfates decompose to sulfur tirioxide, do they?  Usually just to SO2, leaving watever cation as an oxide, yes?

[blackpearlheart]

so.. only way of decomposing it is to seprate it as so2.. is ther neyway to change so2 into somethin else so its not harmful to atmosphere?

[eugenedakin]

Hello blackpearlheart,

Usually, various forms of sulphur can be produced to make many useful chemicals. Instead of thinking of this as a 'waste-stream', think of it as a 'production-stream'.

Why not try and make sulphuric acid - pretty useful for car batteries.

I hope this helps,

Eugene