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Specialty Chemistry Forums => Citizen Chemist => Topic started by: FeLiXe on August 08, 2006, 05:09:32 AM

Title: N-NH3 and NO2-N
Post by: FeLiXe on August 08, 2006, 05:09:32 AM

hi, I am supposed to summarize a sewage water directive. It is confusing me why they always write N-NH₃ and NO₂-N. Does someone know why that is, just to emphasize that it contains nitrogen?

thank you

Title: Re: N-NH3 and NO2-N
Post by: Hispania on September 03, 2006, 09:15:59 AM

No, it´s not to emphasize that it contains nitrogen. It´s just to indicate that all analysis must be calculated in mg/l N, not in mg/l NH₃ or NO₂.

Title: Re: N-NH3 and NO2-N
Post by: FeLiXe on September 03, 2006, 11:20:25 AM

thank you

I'm done with my job already. but it is nice to know.