Muriatic Acid question

[Buddha51]

I'm cleaning my used Live rock i got from FB MARKETPLACE. Its now dipped in muriatic acid. How long should I let it sit?

 

[mrlavalamp]

How did you prepare the acid? How much rock?

If you used the typical 10:1 or 20:1 dilutions of water:acid then 15 minutes is all you need.

 

[PatW]

Muriatic Acid is HCl, It combines with limestone rock (CaCO3) to produce H20, CO2 and CaCl. So when you combine muriatic acid with dry rock, you are destroying a thin layer of rock or maybe a thick one if you got really aggressive with the HCl. The reaction is fast so it should be over in 15 minutes or when the bubbling stops.

 

[Adrift]

Filling along curious to the answer

 

[Tbg299]

Not too long... muriatic acid will react with the calcium hydroxide in the live rock and corrode it.