Struvite Grown in Gel, Its Crystal Structure at 90 K and Thermoanalytical Study
In this article, we report the crystallization of struvite in sodium metasilicate gel by single diffusion gel growth technique. The obtained crystals have a very rich morphology displaying 18 faces. In this study, the habit and morphology of the obtained struvite crystals are analyzed. The crystals...
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| Format: | Article |
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MDPI AG
2019-02-01
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| Series: | Crystals |
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| Online Access: | https://www.mdpi.com/2073-4352/9/2/89 |
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| author | Jolanta Prywer Lesław Sieroń Agnieszka Czylkowska |
| author_facet | Jolanta Prywer Lesław Sieroń Agnieszka Czylkowska |
| author_sort | Jolanta Prywer |
| collection | DOAJ |
| description | In this article, we report the crystallization of struvite in sodium metasilicate gel by single diffusion gel growth technique. The obtained crystals have a very rich morphology displaying 18 faces. In this study, the habit and morphology of the obtained struvite crystals are analyzed. The crystals were examined and identified as pure struvite by single X-ray diffraction (XRD). The orthorhombic polar noncentrosymmetric space group <i>Pmn</i>2<sub>1</sub> was identified. The structure of the crystal was determined at a temperature of 90 K. Our research indicates a lack of polymorphism, resulting from the temperature lowering to 90 K, which has not been previously reported. The determined unit cell parameters are as follows <i>a</i> = 6.9650(2) Å, <i>b</i> = 6.1165(2) Å, <i>c</i> = 11.2056(3) Å. The structure of struvite is presented here with a residual factor R1 = 1.2% at 0.80 Å resolution. We also present thermoanalytical study of struvite using thermal analysis techniques such as thermogravimetry (TG), derivative thermogravimetry (DTG) and differential thermal analysis (DTA). |
| first_indexed | 2024-04-11T13:06:29Z |
| format | Article |
| id | doaj.art-c5691b33f2fb457c878908078b342d7d |
| institution | Directory Open Access Journal |
| issn | 2073-4352 |
| language | English |
| last_indexed | 2024-04-11T13:06:29Z |
| publishDate | 2019-02-01 |
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| record_format | Article |
| series | Crystals |
| spelling | doaj.art-c5691b33f2fb457c878908078b342d7d2022-12-22T04:22:46ZengMDPI AGCrystals2073-43522019-02-01928910.3390/cryst9020089cryst9020089Struvite Grown in Gel, Its Crystal Structure at 90 K and Thermoanalytical StudyJolanta Prywer0Lesław Sieroń1Agnieszka Czylkowska2Institute of Physics, Lodz University of Technology, Wólczańska 219, 90-924 Łódź, PolandInstitute of General and Ecological Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924 Łódź, PolandInstitute of General and Ecological Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924 Łódź, PolandIn this article, we report the crystallization of struvite in sodium metasilicate gel by single diffusion gel growth technique. The obtained crystals have a very rich morphology displaying 18 faces. In this study, the habit and morphology of the obtained struvite crystals are analyzed. The crystals were examined and identified as pure struvite by single X-ray diffraction (XRD). The orthorhombic polar noncentrosymmetric space group <i>Pmn</i>2<sub>1</sub> was identified. The structure of the crystal was determined at a temperature of 90 K. Our research indicates a lack of polymorphism, resulting from the temperature lowering to 90 K, which has not been previously reported. The determined unit cell parameters are as follows <i>a</i> = 6.9650(2) Å, <i>b</i> = 6.1165(2) Å, <i>c</i> = 11.2056(3) Å. The structure of struvite is presented here with a residual factor R1 = 1.2% at 0.80 Å resolution. We also present thermoanalytical study of struvite using thermal analysis techniques such as thermogravimetry (TG), derivative thermogravimetry (DTG) and differential thermal analysis (DTA).https://www.mdpi.com/2073-4352/9/2/89crystal growthcrystallizationmorphologycrystal structurephosphatesthermal decompositionmagnesium compoundsstruvite structurestruvitegrowth from gelmagnesium ammonium phosphates hexahydrate |
| spellingShingle | Jolanta Prywer Lesław Sieroń Agnieszka Czylkowska Struvite Grown in Gel, Its Crystal Structure at 90 K and Thermoanalytical Study Crystals crystal growth crystallization morphology crystal structure phosphates thermal decomposition magnesium compounds struvite structure struvite growth from gel magnesium ammonium phosphates hexahydrate |
| title | Struvite Grown in Gel, Its Crystal Structure at 90 K and Thermoanalytical Study |
| title_full | Struvite Grown in Gel, Its Crystal Structure at 90 K and Thermoanalytical Study |
| title_fullStr | Struvite Grown in Gel, Its Crystal Structure at 90 K and Thermoanalytical Study |
| title_full_unstemmed | Struvite Grown in Gel, Its Crystal Structure at 90 K and Thermoanalytical Study |
| title_short | Struvite Grown in Gel, Its Crystal Structure at 90 K and Thermoanalytical Study |
| title_sort | struvite grown in gel its crystal structure at 90 k and thermoanalytical study |
| topic | crystal growth crystallization morphology crystal structure phosphates thermal decomposition magnesium compounds struvite structure struvite growth from gel magnesium ammonium phosphates hexahydrate |
| url | https://www.mdpi.com/2073-4352/9/2/89 |
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