Potassium chloride

[Red Lime]

Hello,

i still think about the soil which i should use for my floating plant cultivation.
I have some peat which consists 1,4 gramms per liter of KCl (potassium chloride).
The first rule in Tobacco growing is to avoid chlorine, but how much of chlorine can be tolerated?
How much is to much?
Would 1,4 gramms per liter affect my results?
Is there a lower limit which i am not allowed to overrun?

Thank you!

 

[koceff]

Read the tread "My cigars won't burn"
My whole tobacco is useless right now because that damn chloride.

 

[Knucklehead]

Here's the link to "My cigars won't burn" thread:

My Cigars Won't Burn

You won't even find it. It is forbidden in the EU to sell to individuals, because it can be used for less peaceful purposes. Try searching for "E 252".

fairtradetobacco.com

 

[deluxestogie]

I believe that fertilizer with 1% or less (by weight) of chlorine is considered "low-chlorine". Roughly half the molecular weight of potassium chloride is the chlorine. It seems that half of 1.4 grams—0.7 per 1000 grams (1 liter) would be perfectly safe.

Bob

 

[Red Lime]

Thank you, i found a fertilizer made of K2O and SO3, it has 1% of chlorine and is practically considered as chlorinefree!

 

[Red Lime]

Another question to that issue.
Is there a chance to test the chlorine easy and cheap for doing ist myself?
I read that it is done in a labor with a chemical precipitation with silver nitrate.
But can i easily do it for myself with a pool tester, which can be found in a hardware store?

 

[deluxestogie]

You can use a pool test on a water suspension of soil, but I'm not sure how meaningful it might be. The dilution of the sample, together with the coloration and turbidity of the soil particles may confuse the result. Silver nitrate precipitation for chloride ions is the only quantitative lab method I am familiar with.

Bob

 

[Red Lime]

Okay!
I have a crazy/weird idea!
Separate from testing amount of chloride in the soil, i can assume that there is some chlorine in the soil.

What if?

What if i do the precipitation with silver nitrate in the soil itself? And ensure that i eliminate chloride?
Just dispense the silver nitrate in water and poor it in the soil and getting out the chloride by building of insolveable AgCl (silver Chloride).

Would that work?

 

[Oldfella]

Okay!
I have a crazy/weird idea!
Separate from testing amount of chloride in the soil, i can assume that there is some chlorine in the soil.

What if?

What if i do the precipitation with silver nitrate in the soil itself? And ensure that i eliminate chloride?
Just dispense the silver nitrate in water and poor it in the soil and getting out the chloride by building of insolveable AgCl (silver Chloride).

Would that work?

Possibly, but it probably would cost a lot more money than the entire forum could provide!
Oldfella