Studies on salt hydrates for latent heat storage. IV. Crystallization in the binary system CH3CO2Na-h2o.
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概要
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In the binary system CH<SUB>3</SUB>CO<SUB>2</SUB>Na–H<SUB>2</SUB>O, crystallization temperature on slow cooling from a melt, glass transition temperature and crystallization temperature on slow heating from a quenched vitrified solid were measured by varying the CH<SUB>3</SUB>CO<SUB>2</SUB>Na concentration. The crystallization behaviour in the binary system CH<SUB>3</SUB>CO<SUB>2</SUB>Na–H<SUB>2</SUB>O is characterized as follows; (1) crystallization region of ice extends into the CH<SUB>3</SUB>CO<SUB>2</SUB>Na-rich side from the eutectic composition, (2) a hard crystallization region exists in the composition between CH<SUB>3</SUB>CO<SUB>2</SUB>Na 35wt% and 40wt%, (3) the crystallization temperature range of CH<SUB>3</SUB>CO<SUB>2</SUB>Na·3H<SUB>2</SUB>O is from −50 °C to −30 °C and very narrow.
- 公益社団法人 日本化学会の論文
著者
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Wada Takahiro
Central Research Laboratories Matsushita Electric Industrial Co. Ltd.
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Kimura Fumiko
Central Research Laboratory Matsushita Electric Industrial Co. Ltd.
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Matsuo Yoshihiro
Central Research Laboratory Matsushita Electric Industrial Co. Ltd.
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