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Physico-chemical properties of phosphate solutions used in KDP single crystal growth
Basing on known experimental data, mathematical dependences have been derived for determination of the solution compositions in the K₂O-P₂Og-H₂O system. Equations have been proposed to calculate the solubility and the density of the saturated KH₂PO₄ solutions within wide ranges of the solution pH an...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
НТК «Інститут монокристалів» НАН України
2004
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| Series: | Functional Materials |
| Online Access: | http://dspace.nbuv.gov.ua/handle/123456789/139588 |
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| Summary: | Basing on known experimental data, mathematical dependences have been derived for determination of the solution compositions in the K₂O-P₂Og-H₂O system. Equations have been proposed to calculate the solubility and the density of the saturated KH₂PO₄ solutions within wide ranges of the solution pH and temperature. The ion equilibrium calculations for KH₂PO₄ phosphate solutions evidence the formation possibility of protonated phosphate dimer forms that favor the KH₂PO₄ solubility increase. The results obtained supply the known literature data on the acidity effect on the composition and physicochemical properties of the K₂O-P₂O₅-H₂O system solutions and could be applied to optimize the growing conditions of KDP single crystals from aqueous solutions. |
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