Titre du document / Document title
The phase system MgO-(NH
4)
2O-P
2O
5-H
2O at 25° C
Auteur(s) / Author(s)
FRAZIER A. W. ;
WAERSTAD K. J. ;
Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)
Tennessee Valley authority, national fertilizer environmental res. cent., chemical res. dep., Muscle Shoals AL 35660, ETATS-UNIS
Résumé / Abstract
Solubility isotherms in the system MgO-(NH
4)
2O-P
2O
5-H
2O at 25°C were determined between pH values of 3 and 9, for MgHPO
4.3H
2O (newberite), Mg
3(NH
4)
2(HPO
4)
4.8H
2O (hannayite), Mg(NH
4)
2(HPO
4)
2.4H
2O-A (schertelite), Mg(NH
4)
2(HPO
4)
2.4H
2O-B, and MgNH
4PO
4.6H
2O (struvite). Crystallographic properties are given for the new compound Mg(NH
4)
2(HPO
4).4H
2O-B, a dimorphic form of the mineral schertelite
Revue / Journal Title
Industrial & engineering chemistry research
ISSN 0888-5885
CODEN IECRED
Source / Source
1992, vol. 31, n
o8, pp. 2065-2068 (10 ref.)
Langue / Language
Anglais
Editeur / Publisher
American Chemical Society, Washington, DC, ETATS-UNIS
(1987)
(Revue)
Mots-clés anglais / English Keywords
Experimental study ;
Solubility ;
Ternary system ;
Magnesium Oxides ;
Ammonium Oxides ;
Phosphorus oxide ;
Water ;
Phase equilibrium ;
Mots-clés français / French Keywords
Etude expérimentale ;
Solubilité ;
Système ternaire ;
Magnésium Oxyde ;
Ammonium Oxyde ;
Phosphore pentaoxyde ;
Eau ;
Equilibre phase ;
Mots-clés espagnols / Spanish Keywords
Estudio experimental ;
Solubilidad ;
Sistema ternario ;
Magnesio Óxido ;
Amonio Óxido ;
Fósforo pentaóxido ;
Agua ;
Equilibrio fase ;
Localisation / Location
INIST-CNRS, Cote INIST : 120 F, 35400002042118.0340
Nº notice refdoc (ud4) : 5531433