Purity Determination of Organic Compounds by Time-temperature Freezing or Melting Curves with a Simplified Apparatus

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概要

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• A simplified apparatus has been constructed for determining the purity of organic compounds by time-temperature freezing or melting curves. The sample cell is small and the amount of the sample needed in only 0.2 m<I>l</I> or 2 m<I>l</I>. The thermometers used are a Shimadzu platinum resistance thermometer calibrated by the measurement of fixed points and a chromel <I>p</I>-constantan thermocouple calibrated against a standard platinum thermometer with a precision better than ±0.03°. Purities of several hydrocarbons were determined by measuring their freezing and melting curves.

• 公益社団法人 日本化学会の論文

著者

• Shinoda Takako

  Goverment Chemical Industrial Research Institute

• ENOKIDO Hisae

  Goverment Chemical industrial Research Institute

• Mashiko Yo-ichiro

  Government Chemical Industrial Research Institute

関連論文

• Molecular Vibrations of Low Temperature Crystal of CO
• Purity Determination of Organic Compounds by a Newly Designed DTA Apparatus
• Purity Determination of Organic Compounds by Time-temperature Freezing or Melting Curves with a Simplified Apparatus

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