Potassium Nitrate (poor in chlorides)

[Christos Ioannou]

Hi all, my KNO3 is running out so I tried a local garden shop.

They are selling 2kg package Potassium Nitrate for €10, labelled 13,7-0-46,3
I was worried about the label "poor on chloride" - does this infer that the product does have chloride but very little; little enough for aquarium use? Can this be concluded from 13,7-0-46,3

This looks like a similar product

Thank you

 

[xim]

Yes, I would use it, Yara, Haifa, SQM, etc. They are not lab/pharmaceutical grade so some contamination is expected. There are also people using Potassium Chloride in planted tanks. Chloride is not the same as Chlorine, in case you're worried about that.

 

[xim]

Just would like to add more info, there is another thing called "Chlorite" which sounds like "Chloride" but they're also not the same thing. Chlorite is Chlorine dioxide anion. Popular bleaching agents are Calcium Hypochlorite and Sodium Hypochlorite.

 

[Christos Ioannou]

Thanx @xim this is great to know!

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[dw1305]

Hi all,

They are selling 2kg package Potassium Nitrate for €10, labelled 13,7-0-46,3

Like @xim says that is fine.

They are slightly strange numbers for the potassium content because of historical reasons. There is a fuller explanation, comment on the chloride content (Cl-) (and calculation) in <"KNO3 suitable.....">.

cheers Darrel

 

[Christos Ioannou]

Thank you both, off to the shop then. You should though see the shop owner's face when I replied to his question "what are you going to be using this for? " priceless

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[Christos Ioannou]

Hi all, I am back to confirm 0 issues with critters, while dosing with this salt.

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