Potassium Disulfate from Hanna Checker Question

DBS Superleggera

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Hi there everyone, I may have accidentally gotten some of the Hanna ULR Phosphorus checker reagent in my 20 gallon tank (potassium disulfate). Should I be alarmed?

The amount in question is maybe a couple of specs. I saw something dissolve from my testing syringe in my tank as I put it in the water. The Hanna packet left some dust on my testing surface and I figured maybe it picked it up and transferred it over. I feel like it’s fine, I just wanted to verify.

Thank you!
 
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Randy Holmes-Farley

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There's no such chemical as potassium disulfate.

Do you mean potassium bisulfate?

Potassium bisulfate will lower alkalinity and pH (I recommend bisulfate salts as a DIY alk lowering method), but small amounts will go unnoticed.
 
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elysics

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There's no such chemical as potassium disulfate.

Do you mean potassium bisulfate?

Potassium bisulfate will lower alkalinity and pH (I recommend bisulfate salts as a DIY alk lowering method), but small amounts will go unnoticed.
It's another name for potassium pyrosulfate, Hanna uses that name

Wiki says t decomposes into potassium sulfate and sulfuric acid in water
 

Randy Holmes-Farley

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It's another name for potassium pyrosulfate, Hanna uses that name

Wiki says t decomposes into potassium sulfate and sulfuric acid in water

Sorry, I stand corrected. It's a misuse of chemical nomenclature, but I agree that some people use it.
 

taricha

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The amount in question is maybe a couple of specs. I saw something dissolve from my testing syringe in my tank as I put it in the water.
Although I can't think of any case where a trace amount of test kit chemicals would be harmful - they certainly aren't desirable (nessler ammonia - mercury, etc) . Just in general - you may want to think about sampling method.
If you clean a glass cup or beaker and take your sample water with that, then use that beaker of water to pull your tests from - it'll at least give you more peace of mind.
 

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