Thermoanalytical Studies on the Dehydration of Cu(OH) <SUB>2</SUB> and the Heating Changes of Cuppric Oxide

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  • Endoh Minoru
    Department of Applied Chemistry, Okayama University of Science
  • Doi Akira
    Department of Applied Chemistry, Okayama University of Science
  • Kato Chuzo
    Department of Applied Chemistry, Waseda University

Bibliographic Information

Other Title
  • 水酸化銅(II)の脱水反応と生成酸化銅の加熱変化
  • Thermoanalytical Studies on the Dehydration of Cu(OH) 2 and the Heating Changes of Cuppric Oxide

Description

The dehydfation process of Cu(OH)2 under the atmosphere of CO2, . N2, air, and the thermal property of the dehydration material CuO were investigated in detail by means of DTA, DSC, X-ray diffractometry and specific surface area measurement.<BR>The following procecess was considered to occur during the thermal decomposition of Cu(OH)2 under 1 atm.<BR>(a) Cu(OH)2 ptCuO + H20 t 157eC aH=11.4-kc al. /. mAol<BR>(b) The cr y stallizatien ef the dehydration material CuO.200-1000C<BR>(c) 2Cuo aF==Cu20 + 1/202 t 1014C<BR>(d) c., o(s) pt Cu, O(L) 1176C<BR>The particle size of the sample during the de. hydration process(a) was the minimum value 44A at 9A8%. dehydration and t. hen increased to 52 A at 100%. ndehydration. Further the particle size, fCuO I creased to 635Aat 950, C dg the crystallizati. n pr, cess(b).

Journal

  • NIPPON KAGAKU KAISHI

    NIPPON KAGAKU KAISHI 1973 (12), 2283-2287, 1973-12-10

    The Chemical Society of Japan

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