Passivating H3Po4 ? (1 Viewer)

[wrxsti]

if an iron nail is coated with a layer of H3Po4 and left to dry will it form a passivating layer?

 

[xiao1985]

been a while since i did it. but iirc, phosphoric acid react with metal to form an impervious complex, which is the basis of this passivation.

 

[wrxsti]

thanks by the way.. wat was ur HSC chemistry mark. omg. every question i put up here u answer. lol u top the state in chem ? :S

 

[xiao1985]

lol no way man...

I think some random girl topped it (over vince mok oO!!!)
I was overall slightly disappointed in chem (especially my external)... Barely got band 6.

 

[Forbidden.]

The H₃PO₄ reacts with iron to form a highly soluble tightly bonding passivating layer as iron(III) phosphate.

lol no way man...

I think some random girl topped it (over vince mok oO!!!)
I was overall slightly disappointed in chem (especially my external)... Barely got band 6.

But you always knew more than me.
Whenever you post somewhere in the Chemsitry forums you almost always have the answer to people's questions !