Due to the hygroscopic behaviour of both products, the type of stabilisation of the ammonium nitrate grade could influence the storage properties.
Consider the safety implications regarding the detonability of the blend (AN/AS mixtures) and legislative implications.
Consider the safety implications regarding the detonability of the blend (AN/AS mixtures), the impact of free acid and organic impurities, if present, and legislative implications.
Mixture will quickly become wet and absorb moisture resulting in the formation of liquid or slurry. There could also be safety implications.
If free acid is present it could cause a very slow decomposition of AN, affecting, for example, the packaging.
Consider the possibility of self-sustaining decomposition and the overall level of oil coating.
Sulphur is combustible and can react with nitrates e.g. AN, KNO3 and NaNO3.
Due to the hygroscopic behaviour of both products the type of stabilisation of the ammonium nitrate based fertiliser could influence the storage properties.
Consider the moisture content of the SSP/TSP.
Consider the relative humidity during blending.
Risk of formation of gypsum.
No experience but this can be expected to be compatible. Confirm by test and/or analysis.
Consider impurities in AS and the drop in the critical relative humidity of the blend.
Consider the likely impact of additional nitrate.
Consider the possibility of ammonium phosphate/potassium nitrate reaction with urea and the relative humidity during blending, to avoid caking.
If free acid is present, there is a possibility of hydrolysis of urea giving ammonia and carbon dioxide.
Formation of very sticky urea phosphate.
Potential caking problem due to moisture.
If free acid is present, consider the risk of a reaction e.g. neutralisation with ammonia and acid attack with carbonates.