Study of impurities effect on the dielectric properties of ammonium phosphate fertilizer using the dielectric impedance spectroscopy

被引：0

作者：

Lebbar, Nacira ^{[1
]}

Lahkale, Redouane ^{[1
]}

Elhatimi, Wafaa ^{[1
]}

Sabbar, Elmouloudi ^{[1
]}

Hafnaui, Anass ^{[2
]}

Mehdib, Khouloud ^{[2
]}

Boulif, Rachid ^{[2
]}

机构：

[1] Univ Chouaib Doukkali, Dept Chem, Lab Mat Phys Chem, El Jadida, Morocco

[2] OCP Grp SA, Fertilizer Lab, Direct Res & Dev, El Jadida, Morocco

来源：

DIELECTRIC MATERIALS AND APPLICATIONS, ISYDMA '2016 | 2016年 / 1卷

关键词：

Ammonium Phosphate Fertilizers; Dielectric Properties; Impedance Spectroscopy;

D O I：

10.21741/2474-395X/1/41

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Ammonium phosphate fertilizers are obtained from neutralization reactions of phosphoric acid with ammonia. Several works were carried out to define and to control the impurities effect on the physicochemical properties of these fertilizers. However the description of these effects remains an area of disagreement among researchers. Among these studies, those were conducted to investigate the dielectric properties of certain phosphate materials, such as KH2PO4 and NH4H2PO4. Many of these crystal phases are isostructural to the paraelectric phase (EP), by cooling they exhibit a phase transition (PE) to a ferroelectric phase (FE), this usually para-ferroelectric transition occurs at low temperature. In this work our interest is, particularly, to study the impurities effect on the physical properties related to phase transitions in the fertilizer matrix.

引用

页码：163 / 166

页数：4

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