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Thermochromism in Commercial Products

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Mary Anne White and Monique LeBlanc

Dalhousie University, Department of Chemistry, Halifax, Nova Scotia B3H 4J3, CANADA

J. Chem. Educ., 1999, 76 (9), p 1201

DOI: 10.1021/ed076p1201

Publication Date (Web): September 1, 1999

Section:

History, Education, and Documentation

Abstract

Many commercial products change color with a change of temperature. How do they do it? The processes responsible for the two major categories of commercial thermochromic coloring agents are presented, along with a description of applications of thermochromic materials.

Keywords (Audience):

First-Year Undergraduate / General

Keywords (Domain):

Demonstrations

Keywords (Subject):

Acids / Bases

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This article has been cited by 3 ACS Journal articles (3 most recent appear below).

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The Journal of Physical Chemistry A2011 Article ASAP
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  The Journal of Physical Chemistry A2011 Article ASAP
  The lower 1,3-bis(hydroxyalkylamino) homologues of the strong intramolecular X-type charge transfer (CT) system 1,3-diamino-4,6-dinitrobenzene (DADNB) exhibit reversible color change in the solid state from yellow at room temperature (RT) to orange and ...
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A Thermochromic Thin Film Based on Host−Guest Interactions in a Layered Double Hydroxide
Xinrui Wang, Jun Lu, Wenying Shi, Feng Li, Min Wei, David G. Evans and Xue Duan
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  Optically transparent thin films with thermochromic properties have been fabricated by means of cointercalation of different molar ratios of 4-(4-anilinophenylazo)benzenesulfonate (AO5) and sodium dodecylbenzene sulfonate (SDS) into the galleries of a ...
  Abstract | Full Text HTML | Hi-Res PDF | PDF w/ Links
In Situ Observation of Thermochromic Behavior of Binary Mixtures of Phenolic Long-Chain Molecules and Fluoran Dye for Rewritable Paper Application
Satoshi Yamamoto, Hiromi Furuya, Kyoji Tsutsui, Satoru Ueno and Kiyotaka Sato
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- In Situ Observation of Thermochromic Behavior of Binary Mixtures of Phenolic Long-Chain Molecules and Fluoran Dye for Rewritable Paper Application
  Satoshi Yamamoto, Hiromi Furuya, Kyoji Tsutsui, Satoru Ueno and Kiyotaka Sato
  Crystal Growth & Design2008 8 (7), 2256-2263
  Coloring and discoloring processes were determined by thermochromic behavior of the binary mixtures of fluoran dye (FD) and long-chain developers. The colored supramolecular complex mixtures were thermodynamically metastable, and decomposition occurred by ...
  Abstract | Full Text HTML | Hi-Res PDF | PDF w/ Links