For those who follow me already you know that I love to learn and keep a track of my learning.
And by the same opportunity sharing with all of you.
Here is an instructable which explains the discoloration, the recoloring and a other discoloration of the ink in water.
Pretty cool ! Is not it ?
Initially, a drop of blue ink is added to a glass of hot water at about 70 °.
The ink mixes with the water but also it is discolored. It is really beautiful.
For the ink to be completely dissolved, it is mixed.
When you add some drop of vinegar.
And to make it disappear, add a spoonful of bicarbonate of soda. And it disappears again.
In a basic medium as in very hot water this blue does not absorb more color.
It has changed its structure, it is present in the water but we do not see it. It is therefore colorless.
This experience will not work in cold water.
The vinegar which contains acetic acid makes the water acidic and the color reappears immediately.
So when we add the bicarbonate of soda that is slightly alkaline it neutralizes the effect of acidic substances water.
This is the principle of ink erasers, on the sheet of paper the ink is always present but it is rendered colorless colorless.
You can also carry out this experiment in a bottle with cold water and then leave it in the sun the ink would disappear with the temperature.
Leave me a message, it will please me.
Pretty cool. thanks for sharing!