高温高圧下における鉄(III)-クロロ錯体塩酸水溶液のラマンスペクトル : バックグラウンド補正とバンドフィット法の適用

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タイトル別名
  • Raman spectra of iron(III)-chloro complexes in hydrochloric acid solutions at elevated temperatures and pressure ; Application of background correction and band fitting to Raman spectra.
  • 高温高圧下における鉄(III)‐クロロ錯体塩酸水溶液のラマンスペクトル  バックグラウンド補正とバンドフィット法の適用
  • コウオン コウアツカ ニ オケル テツ 3 クロロ サクタイ エンサン スイヨ
  • Application of background correction and band fitting to Raman spectra
  • バックグラウンド補正とバンドフィット法の適用

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抄録

In order to understand hydrothermal chemistry in the earth, iron(III)-chloro complex solutions were examined at elevated temperatures and pressure by using Raman spectroscopy. A portion of five molal hydrochloric acid solution of 1.0m (= mol kg-1) FeCl3·6H2O was injected into the Corning capillary glass. Raman spectra of sample solutions at elevated temperatures were obtained using the furnace under the pressure of 9 MPa. The background correction using the PETEXPOL program was applied to the Raman spectra obtained. Then the band fitting of overlapping lines was performed with the PETBNDFT program operating on an IBM 4341 computer. These analyses showed that iron (III)-Cl solution is a mixture of the octahedral and the tetrahedral iron(III) chloro complexes at 100 °C, but that the tetrahedral FeCl4- species is preferential at 300 °C.

収録刊行物

  • 分析化学

    分析化学 36 (7), T72-T76, 1987

    公益社団法人 日本分析化学会

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