2006-11-05 07:16:24 · 4 answers · asked by swimmertommy 1 in Science & Mathematics ➔ Chemistry
H2O2 gradually decomposes to water and oxygen. The process is catalyzed by heat, light, base, and traces of heavy metal ions (such as iron, manganese, etc), but not Tin.
Tin surprisingly, along with many other organic compounds, such as acetanillide are used as stabilizing agent at ppm level.
It's estimated when properly stored at 15-25 oC under dark condition in plastic bottle, free from contaminants ACS grade H2O2 degrades at a rate of 1-3 %/year. So it's not that bad.
2006-11-05 09:19:47 · answer #1 · answered by ArcH 2 · 0⤊ 0⤋
Oxygen gas is released and the peroxide turns to water.
2006-11-05 07:19:14 · answer #2 · answered by Ford Prefect 3 · 0⤊ 0⤋
It changes into ordinary water.
thats why manufactures put it in brown opaque bottles.
Heat and light speed up the process.
2006-11-05 07:26:27 · answer #3 · answered by Anonymous · 0⤊ 0⤋
If the seal is broken, it will eventually lose its properties.
2006-11-05 07:18:46 · answer #4 · answered by Anonymous · 0⤊ 0⤋