Hydrometallurgy: Leaching in Heap, Vat, CIL, CIP, Merrill–Crowe, SX Solvent Extraction

Hydrometallurgy: Leaching in Heap, Vat, CIL, CIP, Merrill–Crowe, SX Solvent Extraction 2017-04-04T06:57:36+00:00
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Silver Nitrate Solution Colors VS water source (3 replies)

Marshal Meru
11 months ago
Marshal Meru 11 months ago

I have observed that Silver Nitrate in distilled water dissolves and give a clear solution but Silver Nitrate in raw (tap) water dissolve and give a milky solution.

I happen to pour waste silver nitrate solution into the sink and when I open the tap water to flash it off I always see this milky coloration. Do you why that is?

inOr
11 months ago
inOr 11 months ago

Most likely, it's silver chloride, and it's not soluble.  AgCl is so insoluble in water that addition of Cl^- to an unknown solution is both a qualitative and quantitive assay for Ag.  Most metal chlorides are soluble in water, so addition of chloride to  your wasted solution would be a simple and efficient means for retaining the silver in it.  How much waste solution do you produce?  It might be worth your while to recover the Ag instead of flushing it down the drain.  

Marc LeVier
11 months ago
Marc LeVier 11 months ago

i.e.  the chlorine in the tap water creates the milky color

 

 

Jorge Quintanilla
11 months ago
Jorge Quintanilla 11 months ago

I read in internet some tests that performed a chemical engineer.
She did three different dilution.
1. Silver nitrate with distilled water and potassium chloride,
2. Silver nitrate with tap water
3. Silver nitrate with distilled water.

In the first two tries she obtained the same coloration, it may be because in tap water is present Cl. By this way You can obtained silver halide.
The corresponding link is ..

https://prezi.com/inmkzwxcm2uj/reaccion-de-precipitacion-de-aluros-de-plata/


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