What exactly is contained in the remaining ammonia water?
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The remaining ammonia water contains volatile ammonia and fixed ammonium salts. Does volatile ammonia refer to pure ammonia gas? Or does it include other amines? What substances are referred to as fixed ammonia?
Fixed ammonium mainly includes ammonium chloride, ammonium thiocyanate, ammonium sulfate, ammonium sulfite, etc
The main components of the remaining ammonia water； Volatile phenols: 1300–2500 mg/L; ammonia: 2500–4000 ； Sulfides 120-250 ； **10-50 ； Coal tar 600-2500
I would like to ask what “**10-50**” refers to? How to calculate COD?
CN 1mg = COD 1.11mg
I would like to ask: Volatile phenols 1300–2500 mg/L; ammonia 2500–4000； Sulfides 120-250 ； **10-50 ； How are these components listed in Coal Tar 600-2500 converted to calculate COD? P