Equal parts distilled water & 40 vol peroxide.
-40 is less then -20 so -40c is colder then -20c.
20 degrees Celsius doubled is 40 degrees Celsius.
An isotope of the element with 20 protons and 20 neutrons is calcium-40. Calcium has an atomic number of 20, which means it has 20 protons. The total number of protons and neutrons in calcium-40 is 40 (20 protons + 20 neutrons).
A nickel is 5 cents so $1 = 20 nickels (100 cents / 5 cents). Then $40 = 40*20 = 800 nickels.
The mass number of an atom is the sum of the protons and neutrons in its nucleus. Therefore, for an atom of calcium with 20 protons and 20 neutrons, the mass number would be 40.
Equal parts distilled water & 40 vol peroxide.
To make a 10 vol peroxide solution from a 40 vol peroxide solution, you would need to dilute the 40 vol peroxide solution by adding three parts water for every part of the 40 vol peroxide solution. For example, mix 1 part 40 vol peroxide with 3 parts water to achieve a 10 vol peroxide solution.
3 parts 40 vol to 1 part water
If you mix equal parts of 20 vol and 40 vol, you will have 30 vol, which is slightly stronger than 20 vol and slightly weaker than 40 vol. 40 vol should never be applied without help from a professional as it may damage your hair.
Yes, you can dilute 40 volume peroxide by mixing equal parts of 40 volume peroxide and water to achieve a 20 volume solution. For example, mix 1 part 40 volume peroxide with 1 part water to create a 20 volume peroxide solution.
No, 10 is half as weak as 20 volume.. if you mix them equal parts you'll get a weak 15 volume...if you need 30 volume and only have 10,20 mix your color with just less than 2 parts 20 as in 1 oz color 1 3/4 oz 20 volume this will give you just less than 40 but it will be soupy...just spend the money and get 30. hope this helps. Craig NYS cosmetologist
To make a 40-volume developer, you would mix equal parts of 20-volume (6%) hydrogen peroxide cream developer with another equal part of 20-volume (6%) hydrogen peroxide cream developer. This will give you a total volume of 40 (12%).
No! I am a licensed cosmetologist, and no hair color will cover gray with 40 vol. you must use 20 vol only if you want 100% gray coverage. Period!!!!!!!!!!!
To mix 10 volume peroxide and 40 volume peroxide to create a 20 volume solution, you would need to calculate the ratio of each solution needed based on their strength. Since volume strength is directly proportional to the concentration of hydrogen peroxide, you can use the formula C1V1 = C2V2, where C1 is the concentration of the first solution (10 volume), V1 is the volume of the first solution, C2 is the concentration of the second solution (40 volume), and V2 is the volume of the second solution. By solving for V1 and V2, you can determine the amounts of each solution needed to create a 20 volume solution.
It won't give u exactly 30 more like 35 vol if u mix 20 and 40. If u want closer to 30 put a little more 20 then 40...
Redken Color Gels typically process for 20-35 minutes, depending on the desired result and the level of lift you are aiming for. It is important to follow the manufacturer's instructions for specific processing times and to always perform a strand test before applying the color all over.
If you mean OREOR® Creme Developer and other brands the main difference is the name on the bottle. For the most part the ONLY difference between developers is what strength (Volume) the developer is. Standard developer is 20 Vol. (6% peroxide) they have Extra Lift 30 Vol. (9% Peroxide) High Lift 40 Vol. (12% Peroxide) And Low Lift 10 Vol. (3% peroxide) and No Lift 5 Vol. (1.5% peroxide) and each is used for a different purpose - Gray coverage, high lift tints, bleaching, streaking/highlighting, tint backs, semi permanent colors and toning. And as long as the correct Volume is used they are interchangeable. That being said: Dedicated Developers are recommended because they have the correct consistency (thickness) special conditioners and or buffers and correct pH for the product being used. All of which can improve or enhance the product performance. For example: most Creme Haircolors DO NOT have a thickening agent in them like most liquid or gel colors so, if you use a developer that is too thin or liquid it will make the product runny. Also, if your color requires a certain pH to give the proper result using any other developer may result in less than ideal hair condition or may cause premature fading. Hope This Helps. Good-Luck!!