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Shampoos work by applying water and shampoo to the hair. The specific shampoo for oily or dry hair breaks the surface tension of the water, allowing the hair to become soaked. [6] [7] This is known as the wetting action. The wetting action is caused by the head of the shampoo molecule attracting the water to the hair shaft.
This list contains a list of EC numbers for the fifth group, EC 5, isomerases, placed in numerical order as determined by the Nomenclature Committee of the International Union of Biochemistry and Molecular Biology.
When an acid is dissolved in water, the pH will be less than 7, while a base, or alkali, ... 4.5–5.0 Strongly acidic 5.1–5.5 Moderately acidic 5.6–6.0
In water, measurable pK a values range from about −2 for a strong acid to about 12 for a very weak acid (or strong base). A buffer solution of a desired pH can be prepared as a mixture of a weak acid and its conjugate base. In practice, the mixture can be created by dissolving the acid in water, and adding the requisite amount of strong acid ...
[3] [2] While the viable epidermis below the stratum corneum has a neutral pH of around 7.0, the surface pH of the skin's acid mantle typically ranges between 4.5 and 6.5, [4] [5] with an average assumption of 5.0 to 6.0.
The isoelectric point (pI, pH(I), IEP), is the pH at which a molecule carries no net electrical charge or is electrically neutral in the statistical mean. The standard nomenclature to represent the isoelectric point is pH(I). [1] However, pI is also used. [2] For brevity, this article uses pI.
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