For carbon 0.80 x 100 = 80 grams of carbon; and for hydrogen 0.20 x 100 = 20 grams of hydrogen
it's 1:1.5 (dye to peroxide) for the ash blondes :)
200ml of solution x 20% of alcohol = 40ml of alcohol..
20% of 20% is 4% (=0.04)
volume = mass / volume volume = 100 / 20 volume = 5
20 volume peroxide comes from a beauty supply store. Try Sally's.
This means that for every volume of hydrogen peroxide used, 20 volumes of oxygen will be produced. For example, if 1 ml of hydrogen peroxide is used/decomposes, 20 ml of oxygen will be formed.
20 volume is 6% solution. To make it 3% solution just add same volume of water to the original 6% solution and you have double volume of 3% solution.
The strength of a solution may be described as a percentage or volume, where 1% hydrogen peroxide releases 3.3 volumes of oxygen during decomposition.Thus, a 3% solution is equivalent to 10 volume and a 6% solution to 20 volume, etc. Answer taken from Wikipedia 19/01/2009
Yes, 6% or 20 Volume peroxide is ideal for mixing with red hair color.
It's not necessary to purchase developer (peroxide) from a hair salon. A regular beauty supply store carries it as well.
Volume is the amount of oxygen that is contained in a given amount of peroxide. For example, 3% hydrogen peroxide is V10 or 10 volume, because it will release 10 times it's volume in oxygen. One pint of 3% hydrogen peroxide will release 10 pints of oxygen as it breaks down. Gee, now there is something to think about. Of course, V20 will release twice as much oxygen, 20 times its volume.
At least a 20 Volume, 6% peroxide should be used for lifting. Although, the hair tone can still be changed with 10 Volume, 3%. Using this however, you will not see much lift.
Yes, it is possible.
Pure hydrogen peroxide has a density of 1.450g/cm3 at 20 oC. (Wikipedia)
Redken Camo Color Developer is 20 volume.
I am a hairstylist and have never heard of peroxide 6 percent. Normally peroxides come in 10vol 20vol 30vol and 40vol. If you are going darker or trying to cover greys you use a 10vol. If you are trying to achieve a lighter look you would use the other three volumes 20-30-40. The difference between them is how long you want your hair to process and what level of lightness you want to achieve. The higher the volume (30-40vol) processes your hair faster and can get it lighter. I would recommend using a 20 volume to start if you want to lighten. It is a safe way to start out. 6% peroxide is also known as 20 volume developer as 3% is 10 volume, 9% is 30 volume, and 12% is 40 volume. Also......for gray coverage...always use 20 volume. 10 volume will NOT cover gray hair.