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Journals / Turkish Journal of Chemistry / 2013 / Cilt: 37 - Sayı: 2

Study on crystal transformation process of magnesium carbonate hydrate based on salt lake magnesium resource utilization

Juan DU
Zhen CHEN
Yu-long WU
Ming-de YANG
Pages
228–238
Publication Date
2013-02-01
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

The crystal transformation process is discussed from the viewpoint of the crystal plane and growth unit changes. ⋅

📌 3 Key Takeaways

🎯
Objective & Hypothesis:The crystal transformation process of magnesium carbonate hydrate by the reaction of magnesium sulfate (MgSO4) with ammonium carbonate [(NH4)2CO3] was investigated.
📊
Key Findings & Data:MgSO4 is one of the main magnesium resources of the Lop Nur salt lake in the Xinjiang Autonomous Region of China.
💡
Conclusion & Impact:The crystal transformation process is discussed from the viewpoint of the crystal plane and growth unit changes. ⋅
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Crystal morphology · growth units · magnesium carbonate hydrates

Abstract

The crystal transformation process of magnesium carbonate hydrate by the reaction of magnesium sulfate (MgSO4) with ammonium carbonate [(NH4)2CO3] was investigated. MgSO4 is one of the main magnesium resources of the Lop Nur salt lake in the Xinjiang Autonomous Region of China. Magnesium carbonate hydrates with different chemical compositions were prepared. The transformation process of the 2 crystals, MgSO4 and (NH4)2CO3, was analyzed by Raman spectroscopy, and the associated changes in crystal morphology were observed by scanning electron microscopy. The needle-like MgCO3 \cdot 3H2O transformed into sheet-like 4MgCO3 \cdot Mg(OH)2 \cdot 4H2O when the temperature was increased from 323 K to 333 K. The changes in the relative contents of these 2 crystals during the transformation process were analyzed by thermoanalysis. The crystal transformation process is discussed from the viewpoint of the crystal plane and growth unit changes. ⋅

Özet

The crystal transformation process of magnesium carbonate hydrate by the reaction of magnesium sulfate (MgSO4) with ammonium carbonate [(NH4)2CO3] was investigated. MgSO4 is one of the main magnesium resources of the Lop Nur salt lake in the Xinjiang Autonomous Region of China. Magnesium carbonate hydrates with different chemical compositions were prepared. The transformation process of the 2 crystals, MgSO4 and (NH4)2CO3, was analyzed by Raman spectroscopy, and the associated changes in crystal morphology were observed by scanning electron microscopy. The needle-like MgCO3 \cdot 3H2O transformed into sheet-like 4MgCO3 \cdot Mg(OH)2 \cdot 4H2O when the temperature was increased from 323 K to 333 K. The changes in the relative contents of these 2 crystals during the transformation process were analyzed by thermoanalysis. The crystal transformation process is discussed from the viewpoint of the crystal plane and growth unit changes. ⋅

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Cite This Article

DU, J., CHEN, Z., WU, Y., YANG, M. (2013). Study on crystal transformation process of magnesium carbonate hydrate based on salt lake magnesium resource utilization. Turkish Journal of Chemistry, Cilt: 37 - Sayı: 2, 228–238. https://ajindex.com/articles/184711

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