SCIRP Mobile Website
Paper Submission

Why Us? >>

  • - Open Access
  • - Peer-reviewed
  • - Rapid publication
  • - Lifetime hosting
  • - Free indexing service
  • - Free promotion service
  • - More citations
  • - Search engine friendly

Free SCIRP Newsletters>>

Add your e-mail address to receive free newsletters from SCIRP.

 

Contact Us >>

Article citations

More>>

Cahil, A., Najdoski, M. and Stefov, V. (2007) Infrared and Raman Spectra of Magnesium Ammonium Phosphate Hexahydrate (Struvite) and Its Isomorphous Analogues. IV. FTIR Spectra of Protiated and Partially Deuterated Nickel Ammonium Phosphate Hexahydrate and Nickel Potassium Phosphate Hexahydrate. Journal of Molecular Structure, 834, 408-413.

has been cited by the following article:

  • TITLE: Solubility Product of Ni-Struvite, NH4NiPO4·6H2O, at 25°C

    AUTHORS: Hans E. Lundager Madsen

    KEYWORDS: Ammonium Nickel Phosphate, Ni-Struvite, Solubility Product

    JOURNAL NAME: Advances in Chemical Engineering and Science, Vol.7 No.2, April 13, 2017

    ABSTRACT: Solubility product of a sparingly soluble salt is an important parameter in both pure and applied physical chemistry such as determination of values of thermodynamic functions or environmental implications of components of the substance. This paper presents the determination of the solubility product of ammonium nickel phosphate hexahydrate (Ni-struvite) at 25°C by analysis of equilibria attained from both supersaturated and undersaturated solutions, i.e. precipitation and dissolution, respectively. Writing the dissolution process as NH4NiPO4·6H2O → NH3 + Ni2+ ++ 6 H2O, the value pKsp = 11.03 ± 0.03 is found for both precipitation and dissolution. The solubility is a little lower than that of the isomorphous Mg salt. This is to be expected from the lattice dimensions of the two phases, the crystals of Ni-struvite being slightly more compact.