Sodium Laureth Sulhate (SLES) – Physical & Chemical Properties

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Sodium Laureth Sulfate (SLES) is a widely used surfactant in various cleaning and personal care products. It is known for its excellent emulsifying, foaming, and cleansing properties. Below is a detailed overview of the physical and chemical properties of SLES, providing essential information for its application and handling.

AppearancePale straw paste
Set point (°C)ca. 7
Boiling Range/Point (°C)> 100
Relative Density (20 °C)ca. 1.10
Water Solubility (20 °C)ca. 400 g/l
Solubility in ethanolSoluble @ 20 °C
pH (20 °C) (20 g/l)7.0-9.0
Flash Point (°C)Not applicable


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