Why is Peroxide always in a brown bottle?
598825
Peroxide is H2O2. If it were in a clear bottle, that second oxygen would evaporate and it would become H20...water.
463880
In storage it could be plain oxidation or if in plastic, BHT contamination from the plastic.
194813
It's hydrogen peroxide.  It's commonly used as a disinfectant and can be found at most drug stores.  Incidentally, you'll find it in a dark colored opaque bottle because it breaks apart into hydrogen and oxygen gas, and light speeds up this process.\n\nEdit: \n>>>but it decomposes into water and oxygen gas, not hydrogen and oxygen gas.<<<\n\nWoops... you're right.  I need to get more sleep.\n\nIt decomposes according to the reaction:\n\n2(H2O2) -> 2(H2O) + O2
858309
Yes sweetie, it is just old blood, that's why it is brown. A phone call to whom ever prescribes your birth control wouldn't hurt. But I'm sure they will tell you the same thing.
664423
hydrogen peroxide slowly breaks down into water and oxygen. blood contains a catalyst called catalase. when the hydrogen peroxide comes in contact with catalase, it speeds up the breakdown. you are basically seeing oxygen breaking apart from water. sunlight also speeds up the reaction. (thats why it comes in a brown container);)
200542
There is no active ingredient per se.  The better grades of paint use titanium dioxide to create the whiteness and to assist in covering.
449949
why is the color brown named brown
720254
Any bottle is a hazard because people don't clean the bottles properly.  They tend to harbour harmful bacteria.
779445
H2O2 or Hydrogen Peroxide is a corrosive and oxidizer and reacts with all types of metals (except stainless steel and aluminum), dirt, leather, ect. If you would like to see how 70% concentration reacts with a leather glove or laundry detergent. send me an E-Mail to m00nd0ct0r@yahoo.com and I'll send you the two videos later tonight when I get home form work.\n\nP.S. I'm working at a Hydrogen Peroxide plant right now.
521993
Yes, hydrogen peroxide decomposes spontaneously into water and oxygen.  The decomposition is enhanced by exposure to heat, light, and contaminants.  So, over time, that bottle of 2% peroxide in your medicine cabinet will become nothing more than water (not that water is a bad thing).
24490
I actually have always found hydrogen peroxide to help, but it does sting a bit
416503
Assuming you're not near a pollution source or river mouth, the brown color simply comes from stirred-up sand and algae in the surf zone.  If you go just a few miles out, the water becomes as blue as the Caribbean.
821555
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. \nTin surprisingly, along with many other organic compounds, such as acetanillide are used as stabilizing agent at ppm level.\nIt'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.
923027
candy coating is a coloring agent, this colors the brown candy.  so this colored candy coating dilutes in water. If you use less water, then you might end up getting colored water.\n\nyou don't get a brown solution because the solubility of chocolate is low Vs that of the candy coating.
856271
Peroxide is sometimes used as a gargle for sore throat so if I have that right that goes in the mouth! It is also used to treat skin infections or to place in the ear. Peroxide is currently not recommended for anything since it can actually break down the skin.
780979
enzymes react with the air to make the brown color.
764931
definitaly the alcohol, thats why i use iodine and peroxide now....damn you brought back nasty child hood memories......roadrashhhhh ouch!!!!