Magnesium hydroxide sulfate hydrate (MHSH) whiskers were synthesized via a hydrothermal reaction by using MgO as the reactant as well as the acid solution. The effects of the H2SO4 amount and reaction time at the same temperature were studied. In general, MHSH whiskers were prepared using MgSO4 in aqueous ammonia. In this work, to reduce the formation of impurities and increase the purity of MHSH, we employed a synthesis technique that did not require the addition of a basic solution. Furthermore, the pH value, which was controlled by the H2SO4 amount, acted as an important factor for the formation of high-purity MHSH. MgO was used as the raw material because it easily reacts in water and forms Mg+ and MgOH+ ions that bind with SO4 2- ions to produce MHSH. Their morphologies and structures were determined using X-ray diffraction (XRD) and scanning electron microscopy (SEM).

Abstract
1. 서 론
2. 실험방법
3. 실험 결과
    3.1. Influence of Reactant on the Formation of 513MHSH
    3.2. Influence of Reaction Time on the Formation of 513MHSH
4. 결 론
References

• 김유진(한국세라믹기술원 엔지니어링세라믹센터) | YooJin Kima (Engineering Ceramic Center; Korea Institute of Ceramic Engineering & Technology) Corresponding Author
• 오누리(한양대학교 신소재공학과) | Nuri Oh (Division of Materials Science & Engineering, Hanyang University)
• 최아름(한국세라믹기술원 엔지니어링세라믹센터, 한양대학교 신소재공학과) | Areum Choi (Engineering Ceramic Center; Korea Institute of Ceramic Engineering & Technology, Division of Materials Science & Engineering, Hanyang University)