高圧熱天びんの試作

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書誌事項

タイトル別名
  • Thermobalance for thermogravimetric measurement under pressure
  • コウアツ ネツテンビン ノ シサク

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抄録

A thermobalance which can operate under pressure at maximum 100 kg/cm2 G and 1000°C was presented.<BR>To measure the weight of sample under pressure, the buoyancy change caused by the change of density of gas with temperature and the change of weight of sample is the problem of great importance.<BR>In the proposed apparatus, the apparent weight change were corrected for this buoyancy change by an electric circuit carrying out calculation.<BR>The maximum sensitivity of the apparatus was about ±3 mg for the weight change of 1000 mg under the pressure of 80 kg/cm2 G argon over the range 20800°C.<BR>Thermograms for the thermal decomposition of a few inorganic-salts under pressure were obtained.

収録刊行物

  • 分析化学

    分析化学 18 (10), 1179-1183, 1969

    公益社団法人 日本分析化学会

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