A Study of Ammonium Mono-, Di- and Triphosphate Heterogeneous Systems in View of their Use as Liquid Fertilizers |
| |
| Authors: | M Ebert J Eysseltová I Lukeš J Nassler |
| |
| Institution: | Department of Inorganic Chemistry, Faculty of Sciences , Charles University , Albertov 2030, Prague , 2 , Czechoslovakia |
| |
| Abstract: | Abstract Ammonium phosphates belong among principal compounds of multicomponent liquid fertilizers and thus this study has been directed toward agrochemical application. For this reason, in the system of NH+ 4, H+ PO3 4, P2O4 7, P3O5- 10 - H2O, the subsystem, NH4H2PO4 - (NH4)2H2P2O7 - (NH4)3H2P3O10?(NH4)3PO4 - (NH4)4P2O7 - (NH4)5P3O10 - H2O, was studied in which the pH of saturated solutions varies from 5 to 8. The solubility was studied in the partial pseudoternary systems. The experimental temperatures were selected immediately above the corresponding cryohydratic points, from 0 to -8°C. The sum of the results obtained can be schematically represented as a set of the curves of simultaneous crystallization of two solids on the mantle of a trigonal prism which represents the salt composition of the studied system. |
| |
| Keywords: | |
|
|
