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Fletch78

Fletch78

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I couldn't find anything in the search with both these search terms.

If I'm calculating water additions on the EZ water calculator, do I need to consider my K-meta addition (to remove chloramine) when calculating sulfate content? Does K metabilsulphite make sulfate?

Thanks!
 
Fletch78 said:
Does K metabilsulphite make sulfate?
Click to expand...

Yes,

S2O5-- + 2H2NCl + 3H2O --> 2SO4-- + 2Cl- + 2 NH4+

but as there generally isn't that much chloramine in water the additional amount of sulfate is not that great. The maximum allowable chloramine is 3 mg/L as chlorine and if that amount is present 8.1 mg/L sulfate would be added to the water if enough metabite were added to completely convert it. This could be appreciable for, say, Bohemian Pils where you wouldn't want the total sulfate to be more than about 15 mg/L but in most cases it wouldn't be significant. Besides which the chloramine level is generally less than 3 mg/L. Excess metabite stays in solution as sulfite which is not detrimental in the same way as sulfate.
 
ajdelange said:
Yes,

S2O5-- + 2H2NCl + 3H2O --> 2SO4-- + 2Cl- + 2 NH4+

but as there generally isn't that much chloramine in water the additional amount of sulfate is not that great. The maximum allowable chloramine is 3 mg/L as chlorine and if that amount is present 8.1 mg/L sulfate would be added to the water if enough metabite were added to completely convert it. This could be appreciable for, say, Bohemian Pils where you wouldn't want the total sulfate to be more than about 15 mg/L but in most cases it wouldn't be significant. Besides which the chloramine level is generally less than 3 mg/L. Excess metabite stays in solution as sulfite which is not detrimental in the same way as sulfate.
Click to expand...

Thanks for the explanation! It was my understanding that the kmeta would NOT affect the amount of sulfate in my water but I didn't know why. Thank you.
 

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