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Author: Subject: Double displacement desalination of sea water
symboom
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biggrin.gif posted on 27-4-2018 at 20:32
Double displacement desalination of sea water


The main ions in sea water is sodium chloride and magnesium sulfate

Forming insouble salts

Aluminum carbonate>
Aluminum hydroxide
Bismuth oxychloride
Ammonium copper perchlorate
Insouble amone complex
Insoluble double salt
Silver chloride
Sodium bismuthate
Hydrazine sulfate
Magnesium hydroxide
Tin nitrate >tin oxide
Urea nitrate

Removing ions from solution

Removal of sodium ions
Sodium bismuthate
Sodium sulfate
Sodium potassium tartrate

Removal of nitrate
Urea nitrate
Tin nitrate
Bismuth nitrate

Removal of chloride ions
Silver chloride
Bismuth oxychloride

Removal of sulfate ions
Calcium sulfate
Strontium sulfate

Removal of carbonate
Co2

Removal of magnesium ion
Magnesium hydroxide


First
Ammonium hydroxide is added and magnesium hydroxide percipitates
Magnesium removed


Silver or bismuth is added silver chloride removed
Or bismuth oxychloride

Common ion effect?

Chemicals needed

Calcium chloride
Strontium nitrate
Urea chloride
Amine complex chloride
Silver nitrate

For removing sulfate nitrate chloride
Agnesium and sodium by making the salts insoluble


Yes the point is desalination using chemicals

[Edited on 28-4-2018 by symboom]




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[*] posted on 27-4-2018 at 20:45


Quote: Originally posted by symboom  
The main ions in sea water is sodium chloride and magnesium sulfate


Aluminum hydroxide
Bismuth oxychloride
Ammonium copper perchlorate
Silver chloride
Sodium bismuthate
Hydrazine sulfate
Magnesium hydroxide
Tin nitrate



Is there a point here somewhere?

Edit: No. Even though you've added more stuff to it this is just a list of chemicals and nonsense. And for what it's worth, desalinization by double displacement is impossible because you'll always leave some soluble ions in solution. That's what makes it double (i.e. precipitating magnesium with ammonia still leaves ammonium sulfate in solution).

[Edited on 4-28-2018 by Texium (zts16)]




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27-4-2018 at 21:23

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