NaCl +Na3PO4 + NaNO3 precipitate?

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Shirak

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Hmm Not sure why but getting a fine whitish precipitate when I mix them.

I am still tinkering with a phosphate and nitrate combination solution that can sit next my doser and not grow bacteria and molds/fungi in the solution. Randy suggested salt to keep unwanted microorganisms from growing. I was doing some research online and found some papers suggesting a 5% NaCl solution would work. SOOO I made a 5% by volume salt solution. I used Morton canning salt which is supposed to be pure salt. It dissolved cleanly. I added the trisodium phosphate anhydrous (.392g) into the 840ml 5% sodium chloride solution and it got a little cloudy. I then added the 3.14g sodium nitrate and didn't see any change. So looks like something in that second step is precipitating but what? Thoughts?
 
Must be impurities in them. Those ingredients are compatible.

That's what I thought Randy. I will try a different NaCl source and see how that goes.
This is the trisodium phosphate I am using. Food grade 99.9% pure according to the label so I dunno
trisodphos.jpg
 

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