Hydrogen Peroxide experiment on old, discolored bricks
Posted: Wed Jun 29, 2005 4:46 am
Entire Post Mod Gallery
Day #1
An assortment of discolored "classic" light grey and white bricks, saving some of similar discoloration out as a control. The picture on the upper left is with a flash, the other without. Here you can see some of the white bricks are badly discolored. The light grey bricks have roughly the same amount of discoloration and are about the same color.
(Day #25)
The containment unit. Hydrogen Peroxide is basically made up of water molecules with an extra oxygen atom. Because of this, it is relatively unstable, reacting to both air and water, and gives its free oxygen atom up easily. To counteract this, I stored the bricks and peroxide in an air tight container in an unused cabinet.
Day #25
*obligatory 'whoosh' noise as the containment vessel opens*
Day #25 - White Bricks
Here you can see the white bricks that were soaked lying on a new white baseplate, along with one of the control white bricks. The white bricks were not totally whitened 100%, but they were considerablly better in color than the control.
I theorize a few more weeks and they would whiten further.
Day #25 - Light Grey Bricks
I'm not sure what to make of this. On top you can see the control Light Grey brick, and on the bottom you can see a new Light Grey brick.
Inbetween it looks almost as if there are two Very Light Grey colored bricks and one "New" or "Bley" Light Grey Brick. Had they all turned lighter, I would have surmised that their color had been bleached out. As it is, I have no idea what to think.
--Anthony
Day #1
An assortment of discolored "classic" light grey and white bricks, saving some of similar discoloration out as a control. The picture on the upper left is with a flash, the other without. Here you can see some of the white bricks are badly discolored. The light grey bricks have roughly the same amount of discoloration and are about the same color.
(Day #25)
The containment unit. Hydrogen Peroxide is basically made up of water molecules with an extra oxygen atom. Because of this, it is relatively unstable, reacting to both air and water, and gives its free oxygen atom up easily. To counteract this, I stored the bricks and peroxide in an air tight container in an unused cabinet.
Day #25
*obligatory 'whoosh' noise as the containment vessel opens*
Day #25 - White Bricks
Here you can see the white bricks that were soaked lying on a new white baseplate, along with one of the control white bricks. The white bricks were not totally whitened 100%, but they were considerablly better in color than the control.
I theorize a few more weeks and they would whiten further.
Day #25 - Light Grey Bricks
I'm not sure what to make of this. On top you can see the control Light Grey brick, and on the bottom you can see a new Light Grey brick.
Inbetween it looks almost as if there are two Very Light Grey colored bricks and one "New" or "Bley" Light Grey Brick. Had they all turned lighter, I would have surmised that their color had been bleached out. As it is, I have no idea what to think.
--Anthony