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Development of thermochromic teaching materials at which the temperature that the color change takes place can be controlled arbitrarily and which teachers and pupils can readily prepare

Research Project

Project/Area Number 24501047
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Science education
Research InstitutionKanazawa University

Principal Investigator

IHARA Yoshinori  金沢大学, 学校教育系, 教授 (70115210)

Project Period (FY) 2012-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2014: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000)
Fiscal Year 2013: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2012: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Keywordsサーモクロミズム / 化学 / 教材 / 塩化コバルト / 固体アルコール / 金属錯体 / 脂肪酸
Outline of Final Research Achievements

A new reversible thermochromic system applicable to teaching materials is developed. In the reaction system consisting of cobalt(II) chloride hexahydrate and solid alcohol, a pink coloration of the mixture due to CoCl2・6H2O at room temperature is changed to a blue one seems to be due to anhydrous CoCl2, at the same time as solid alcohol melts upon heating. Thus, the temperature at which the color change takes place can be controlled arbitrarily to a certain extent by selecting solid alcohol appropriately.
Using this reaction, teachers and also pupils can readily prepare the ‘thermo-sheet’ by mixing two commercial reagents and laminating the powder obtained.

Report

(4 results)
  • 2014 Annual Research Report   Final Research Report ( PDF )
  • 2013 Research-status Report
  • 2012 Research-status Report
  • Research Products

    (1 results)

All 2012

All Journal Article (1 results) (of which Peer Reviewed: 1 results)

  • [Journal Article] 塩化コバルト・6水和物と固体アルコール混合系示温教材の開発2012

    • Author(s)
      井原良訓、山口好美、長瀬歩美、北原麻由子
    • Journal Title

      科学教育研究

      Volume: 36 Pages: 269-272

    • NAID

      110009517862

    • Related Report
      2012 Research-status Report
    • Peer Reviewed

URL: 

Published: 2013-05-31   Modified: 2019-07-29  

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