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遷移金属硫酸塩の熱分解の速度と機構
http://hdl.handle.net/10131/7242
http://hdl.handle.net/10131/7242ce818701-99fc-4890-9053-c12c867e5d76
名前 / ファイル | ライセンス | アクション |
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biest121097.pdf (461.8 kB)
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2010-08-23 | |||||
タイトル | ||||||
タイトル | 遷移金属硫酸塩の熱分解の速度と機構 | |||||
言語 | ||||||
言語 | jpn | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | departmental bulletin paper | |||||
著者 |
田川, 博章
× 田川, 博章× 西候, 宏之 |
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著者(ヨミ) | ||||||
識別子Scheme | WEKO | |||||
識別子 | 24644 | |||||
姓名 | タガワ, ヒロアキ | |||||
著者(ヨミ) | ||||||
識別子Scheme | WEKO | |||||
識別子 | 24645 | |||||
姓名 | サイジョウ, ヒロユキ | |||||
著者別名 | ||||||
識別子Scheme | WEKO | |||||
識別子 | 24646 | |||||
姓名 | Tagawa, Hiroaki | |||||
著者別名 | ||||||
識別子Scheme | WEKO | |||||
識別子 | 24647 | |||||
姓名 | Saijo, Hiroyuki | |||||
著者所属 | ||||||
横浜国立大学環境科学研究センター汚染拡散学研究室 = Department of Environmental Energy Chemistry, Institute of Environmental Science and Technology, Yokohama National University | ||||||
著者所属 | ||||||
横浜国立大学環境科学研究センター汚染拡散学研究室 = Department of Environmental Energy Chemistry, Institute of Environmental Science and Technology, Yokohama National University | ||||||
著者所属 | ||||||
横浜国立大学環境科学研究センター汚染拡散学研究室 = Department of Environmental Energy Chemistry, Institute of Environmental Science and Technology, Yokohama National University | ||||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The thermal decomposition of sulfates of Fe2(SO4)3, CoSO4, CuSO4 and ZnSO4 was kinetically, isothermally studied in flowing high-purity-nitrogen by use of at hermobalance. Disk-like pellets compacting the anhydrous sulfate powders were used. The decomposition occurred at the phase boundary between the undecomposed sulfate and the oxide product, and the boundary proceeded uniformly from the surface towards the interior. The thickness, x, of the oxide product layer was proportional to the time, t, for Fe2(SO4)3, C0SO4 and NiSO4 : the rate equation was x=kct. The x vs t curves for CuSO4 and ZnSO4 were shown to become two straight lines with a break point. From the kinetic data and the results of X-ray diffraction, it was known that the break is due to the formation of their oxyysulfate as the intermediate. The in k vs 1/T relationship moves from lower to higher temperatures in the order : Fe2(SO4)3, CuSO4, CoSO4, NiSO4, ZnSO4. The activation energies of the decomposition for sulfates of iron(III), cobalt, nickel, copper and zinc were 212, 217, 257, 211 and 238 kJ mo1-1, and those for oxysulfates of copper and zinc at the later stage after the break were 221 and 275 kJmo1-1, respectively, The activation energies were shown to be close to the enthalpies of decomposition for the sulfates, ⊿H゜d298 | |||||
書誌情報 |
横浜国立大学環境科学研究センター紀要 = Bulletin of the Institute of Environmental Science and Technology, Yokohama National University 巻 12, 号 1, p. 97-103, 発行日 1985-12-20 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0286584X | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AN00246482 | |||||
フォーマット | ||||||
内容記述タイプ | Other | |||||
内容記述 | application/pdf | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
その他のタイトル | ||||||
その他のタイトル | Kinetics and Mechanism of the Thermal Decomposition of Some Transition Metal Sulfates |