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How oxalic acid removes rust?

In: Chemistry [Edit categories]

Answer:

Rust is Fe2O3 ....it can not be removed by

1.HCl
2.H2So4
3.Edta.....

but can remove by Oxalic Acid H2C2O4

Fe2O3(s) + 6 H2C2O4(aq) → 2 Fe(C2O4)3 3−(aq) + 3 H2O(l) + 6 H+(aq)

First answer by ID1917794213. Last edit by ID1917794213. Question popularity: 1 [recommend question].

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Relevant answers:

Why does hydrochloric acid remove rust?
HCl+Fe2O3(Fe3O4)->FeCl+H2O
What acid is used to remove rust?
Acid does not remove rust, however the use of phosphoric acid on rust converts the iron oxide to iron phosphate, which in turn can be painted without the fear of rust forming. The iron phosphate...
Do you use acid or base to remove rust?
Acid to remove, base to produce!
What acid does vinegar have that enables it to remove rusts in metals?
Vinegar is a dilute solution of acetic acid. Acetic acid will react with rust to form a soluble salt that can be washed away. 3CH3COOH + Fe(OH)3 --> 3H2O + Fe(CH3COOH)3
How do you write equation for the reaction of rust and oxalic acid?
The word equation for rust iz = Iron+oxygen+water Vapour oxalic acid (removing agent) h2c2o4 Fe2O3 + 6H2C2O4 -> 2Fe(C2O4)3{-3} + 3H2O + 6H {+1} Hope that helps!