David Adams Posted December 1, 2015 Share Posted December 1, 2015 Hi, I am just wondering. Is there a chemical or anything that changes colour upon impact. Thank you! Link to comment Share on other sites More sharing options...
DevilSolution Posted December 1, 2015 Share Posted December 1, 2015 Upon impact of what? light? another chemical? or another object? Link to comment Share on other sites More sharing options...
David Adams Posted December 1, 2015 Author Share Posted December 1, 2015 Upon impact of what? light? another chemical? or another object? Of another object Link to comment Share on other sites More sharing options...
Sensei Posted December 1, 2015 Share Posted December 1, 2015 (edited) Try for example Zinc Hydroxide and Acetic Acid. Zinc Hydroxide is white, Zinc Acetate is colorless. Other example is black Copper Oxide CuO, after reaction it often change to blue compound. Edited December 1, 2015 by Sensei 1 Link to comment Share on other sites More sharing options...
Phi for All Posted December 1, 2015 Share Posted December 1, 2015 Certain compounds change color under pressure. Carbon turns clear under enough pressure. 1 Link to comment Share on other sites More sharing options...
studiot Posted December 1, 2015 Share Posted December 1, 2015 Two posts and we are no clearer what you want to achieve. When you say under impact, what do you mean change colour? Do you mean just during the impact? Does it have to maintain the new colour after imapct? Or should it revert to its old colour after the very short term impact forces have dissipated? Can it be a contraption rather than a material? Why impact? What about sustained pressure? Or what about tension? Soap films go through dramatic colour changes as the tension varies. Link to comment Share on other sites More sharing options...
David Adams Posted December 1, 2015 Author Share Posted December 1, 2015 (edited) Ok, let me clear this up. What i want: A name of a chemical or any other form of liquid that changes colour when pressure is applied. However i want the colour to stay there for lets say around a minute and only in the area that was struck. Why impact? - Some thing i am working on needs it What about sustained pressure? - I am not to bothered as long as it changes colour and stays there for about a minute Or what about tension? - Again not that bothered. All i need is when something suddenly his the liquid it suddenly changes colour Edited December 1, 2015 by David Adams Link to comment Share on other sites More sharing options...
studiot Posted December 1, 2015 Share Posted December 1, 2015 What happens if you hit a liquid with a hammer? Link to comment Share on other sites More sharing options...
David Adams Posted December 1, 2015 Author Share Posted December 1, 2015 What happens if you hit a liquid with a hammer? It changes colour and the colour stays for a little while before going away that would be perfect Link to comment Share on other sites More sharing options...
John Cuthber Posted December 1, 2015 Share Posted December 1, 2015 What happens if you hit a liquid with a hammer? It depends. Toffee shatters. Link to comment Share on other sites More sharing options...
Phi for All Posted December 1, 2015 Share Posted December 1, 2015 Piezochromatic pigments. 1 Link to comment Share on other sites More sharing options...
David Adams Posted December 1, 2015 Author Share Posted December 1, 2015 (edited) Piezochromatic pigments. Thank you this looks, hopeful.. Ill explore the site* a little more! Any other contributions would still be great! Edited December 1, 2015 by David Adams Link to comment Share on other sites More sharing options...
David Adams Posted December 2, 2015 Author Share Posted December 2, 2015 Anyone else got any ideas? Link to comment Share on other sites More sharing options...
DevilSolution Posted December 3, 2015 Share Posted December 3, 2015 (edited) Theres liquid crystals that change colour when in contact with heat, even small amounts, so if you were to place the encased crystals on something (even your hand) they will change colour. https://en.wikipedia.org/wiki/Liquid_crystal https://en.wikipedia.org/wiki/MBBA Edited December 3, 2015 by DevilSolution 1 Link to comment Share on other sites More sharing options...
David Adams Posted December 3, 2015 Author Share Posted December 3, 2015 Theres liquid crystals that change colour when in contact with heat, even small amounts, so if you were to place the encased crystals on something (even your hand) they will change colour. https://en.wikipedia.org/wiki/Liquid_crystal https://en.wikipedia.org/wiki/MBBA Intresting, thank you! Link to comment Share on other sites More sharing options...
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