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Anionic surfactants are a class of surface-active agents that carry a negative charge in their molecular structure. They are typically derived from fatty acids or alcohols and are known for their excellent cleaning and foaming properties. Anionic surfactants are widely used in personal care and cosmetic formulations due to their ability to effectively remove dirt and oils while also providing a rich lather.
| Chemical structure | Negative charge at the hydrophilic end |
| Common types | Sodium lauryl sulfate, Sodium laureth sulfate |
| Solubility | Water-soluble |
| pH range | Typically 6 to 8 |
| Foaming capacity | High foaming ability |
When selecting anionic surfactants, buyers should consider the specific application and desired properties such as foaming ability, viscosity, and compatibility with other ingredients. It's important to specify the required purity levels, any necessary certifications, and the desired pH range. Additionally, buyers should determine the quantity needed for their formulations, as this can influence pricing and availability.
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They provide excellent cleaning, foaming, and emulsifying properties.
Generally, yes, but formulation and concentration should be considered.
They can be less effective in hard water, often requiring chelating agents.
They typically have a pH range of 6 to 8.
Anionic surfactants are more effective at cleaning, while nonionic surfactants are milder.
Personal care, cosmetics, and household cleaning industries.