[nasentier]

Hello,

i want to prepare a dry mixture of calcium nitrate and ammonium nitrate for a fertilizer used in hydroponic systems.

On several pages / books i read about incompatibility of both nitrate salts, and about Calcium nitrate incompatibility with ammonium salts. For the mixture of NH₄NO₃ and Ca(NO₃)₂, even explosion hazard is mentioned. Unfortunately, not in even a single case, an explanation or at least a reference is provided. I searched a little bit and only found a hint in a patent, where the addition of calcium nitrate increases efficiency of ammonium nitrate based explosives which additionally contains hydrocarbons.

But I also saw products and patents with NH₄NO₃ / Ca(NO₃)₂ double salts using for fertilizing purposes, which seem a little bit contradictory when they are actually not compatible.

I would appreciate any information in that matter so I can get in knowledge about the manufacturing safety and product stability.

Kind regards!