KH2PO4 crystallisation from potassium chloride and ammonium dihydrogen phosphate

• Autorzy: Jančaitienė K. , Šlinkšienė R.

Identyfikatory

DOI

10.1515/pjct-2016-0001

• Języki publikacji: EN

Abstrakty

EN

Seeking to obtain bulk (NPK – nitrogen, phosphorus, potassium), chlorine-free fertilizers, the influence of interaction between potassium chloride and ammonium dihydrogen phosphate in aqueous solutions at temperature of 20, 40, 60 and 80°C has been investigated. Components of the solid phase have been identified by methods of chemical and instrumental analysis: radiography (X – ray), infra – red molecular absorption spectroscopy (IR) and scanning electron microscopy (SEM). It has been observed that the largest amount of solid state potassium dihydrogen phosphate was obtained at 60–80°C, when the potassium chloride and ammonium dihydrogen phosphate molar ratio is equal 0.8:0.2. Changing the molar ratio of 0.5:0.5 to 0.8:0.2, and with increasing temperature, various shaped crystals have developed in the remaining aqueous solutions with a morphology shifting from sharp needles to tetragonal prism.

Słowa kluczowe

EN

potassium dihydrophosphate; ammonium dihydrophosphate; molar ratio; crystallization; crystal

• Wydawca: West Pomeranian University of Technology. Publishing House
• Czasopismo: Polish Journal of Chemical Technology
• Rocznik: 2016
• Tom: Vol. 18, nr 1
• Strony: 1--8
• Opis fizyczny: Bibliogr. 21 poz., rys., tab.

Twórcy

autor

Jančaitienė K.

• Kaunas University of Technology, Department of Physical and Inorganic Chemistry, Radvilėnų Rd. 19, LT-50254 Kaunas, Lithuania

autor

Šlinkšienė R.

• Kaunas University of Technology, Department of Physical and Inorganic Chemistry, Radvilėnų Rd. 19, LT-50254 Kaunas, Lithuania

Bibliografia

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Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.