Color change Chemical reaction help

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Discussion Overview

The discussion revolves around finding two chemicals that can react and change colors when mixed, specifically in powder form, while being non-toxic and inexpensive. The context is a project requirement for a color change chemical reaction without the application of heat.

Discussion Character

  • Exploratory, Technical explanation

Main Points Raised

  • One participant seeks assistance in identifying two powders that can react to produce a color change.
  • Another participant confirms the requirement of mixing two powders to observe the color change.
  • A later post specifies that the reaction should occur without the application of heat.
  • One suggestion is made to use turmeric and methylene blue, which reportedly mix to create a green color when combined.

Areas of Agreement / Disagreement

Participants generally agree on the requirement for a color change reaction involving two powders, but the discussion remains open regarding the specific chemicals that can be used.

jonathancohen
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I am working on a project that needs 2 chemicals to react and change colors. The catch is they most likely need to be or come in a powder form, non toxic, and relatively inexpensive.

PLEASE HELP!
 
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To clarify: you want to mix two powders and observe color change?
 
yes, that is correct
 
...without heat
 
Try tumeric and methylene blue. Mix the yellow powder with the blue one and it turns green! How cool is that?
 

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