An arrangement for production of pure ammonium phosphates, comprising: an extraction section, configured for performing a liquid-liquid extraction of phosphate between a feed liquid, comprising phosphoric acid, and a solvent; said solvent having a solubility in water of less than 2%, and preferably less than 1%; said feed liquid being essentially free from nitrate ions; said extraction section having a first extraction inlet for provision of said feed liquid, a second extraction inlet for provision of said solvent, a first extraction outlet for delivering of said feed liquid at least partly depleted in phosphate and a second extraction outlet for delivering of said solvent loaded with phosphate; a stripping section configured for performing a liquid-liquid extraction of phosphate between said solvent loaded with phosphate and an input strip solution; said stripping section having a first stripping inlet, connected to said second extraction outlet, for provision of said solvent loaded with phosphate, a second stripping inlet for provision of said input strip solution, a first stripping outlet for delivering said solvent at least partly depleted in phosphate and a second stripping outlet for delivering output strip solution; said first stripping outlet being connected to said second extraction inlet for recirculating said solvent at least partly depleted in phosphate for further extraction of phosphate; a source of ammonia comprised in end treatment arrangements connected to said second stripping outlet; an adding arrangement connected to said source of ammonia; a cooling arrangement configured for cooling off heat generated when said ammonia from said source of ammonia is added into an at least partial stream of strip solution; a precipitate remover configured for separating crystals from said output strip solution; said adding arrangement being configured for adding ammonia from said source of ammonia into said at least partial stream of strip solution before or after said precipitate remover; and a recirculating system connected between an outlet from said precipitate remover and said second stripping inlet of said stripping section, said recirculating system being configured for reusing strip solution from said precipitate remover as input strip solution; said input strip solution being an aqueous ammonium phosphate solution; wherein at least one of: at least 80% of said ammonium phosphate in said input strip solution is monoammonium phosphate; and said solvent being a water-immiscible alcohol. an extraction section, configured for performing a liquid-liquid extraction of phosphate between a feed liquid, comprising phosphoric acid, and a solvent; said solvent having a solubility in water of less than 2%, and preferably less than 1%; said feed liquid being essentially free from nitrate ions; said extraction section having a first extraction inlet for provision of said feed liquid, a second extraction inlet for provision of said solvent, a first extraction outlet for delivering of said feed liquid at least partly depleted in phosphate and a second extraction outlet for delivering of said solvent loaded with phosphate; a stripping section configured for performing a liquid-liquid extraction of phosphate between said solvent loaded with phosphate and an input strip solution; said stripping section having a first stripping inlet, connected to said second extraction outlet, for provision of said solvent loaded with phosphate, a second stripping inlet for provision of said input strip solution, a first stripping outlet for delivering said solvent at least partly depleted in phosphate and a second stripping outlet for delivering output strip solution; said first stripping outlet being connected to said second extraction inlet for recirculating said solvent at least partly depleted in phosphate for further extraction of phosphate; a source of ammonia comprised in end treatment arrangements connected to said second stripping outlet; an adding arrangement connected to said source of ammonia; a cooling arrangement configured for cooling off heat generated when said ammonia from said source of ammonia is added into an at least partial stream of strip solution; a precipitate remover configured for separating crystals from said output strip solution; said adding arrangement being configured for adding ammonia from said source of ammonia into said at least partial stream of strip solution before or after said precipitate remover; and a recirculating system connected between an outlet from said precipitate remover and said second stripping inlet of said stripping section, said recirculating system being configured for reusing strip solution from said precipitate remover as input strip solution; said input strip solution being an aqueous ammonium phosphate solution; wherein at least one of: at least 80% of said ammonium phosphate in said input strip solution is monoammonium phosphate; and said solvent being a water-immiscible alcohol. at least 80% of said ammonium phosphate in said input strip solution is monoammonium phosphate; and said solvent being a water-immiscible alcohol.