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Sodium Lauryl Ether Sulfate (SLES), commonly known as SLES, is an anionic surfactant widely used in cosmetic and detergent industries. With excellent foaming, emulsifying, and cleaning properties, SLES is an essential ingredient in products such as shampoos, body washes, and dishwashing liquids. Its chemical formula is CH₃(CH₂)₁₀CH₂(OCH₂CH₂)ₙOSO₃Na, and it typically appears as a viscous, clear to pale yellow liquid. SLES supplied by ATP is highly regarded for its purity and performance.
Introduction to Sodium Lauryl Ether Sulfate (SLES)
SLES is an anionic surfactant synthesized through the ethoxylation of lauryl alcohol followed by sulfonation. This process produces a compound capable of reducing surface tension, allowing dirt and grease to be easily removed. SLES is stable in both acidic and alkaline environments and performs effectively even in hard water.
- Chemical name: Sodium Lauryl Ether Sulfate
- Common names: SLES, Sodium Laureth Sulfate
- Chemical formula: CH₃(CH₂)₁₀CH₂(OCH₂CH₂)ₙOSO₃Na
- Packaging: 210 kg/drum
- Common origins: Tayca (Japan), China
- Grade: Industrial Grade, Cosmetic Grade
Technical Specifications
| Parameter | Value |
| Appearance | Viscous liquid |
| Color | Colorless to light yellow |
| Odor | Mild characteristic odor |
| Active matter | 70% ± 2% |
| pH (1% solution) | 7.0 – 9.0 |
| Solubility | Highly soluble in water |
| Other properties | High foaming ability, good emulsification, effective in both hard and soft water, biodegradable |
Functions and Applications of SLES
SLES is widely used due to its strong cleansing, foaming, and emulsifying capabilities.
Cosmetics & Personal Care Industry
SLES is a primary surfactant in cleansing products, producing rich, stable foam and delivering a clean, pleasant feel.
- Shampoos: Removes oil, dirt, and styling residues from hair and scalp
- Body washes and facial cleansers: Effectively remove dirt and excess oil
- Hand wash and liquid soaps: Provide easy-to-use liquid formulations with quick foaming
- Toothpaste: Enhances foaming and helps distribute ingredients evenly
Household Cleaning Products
- Dishwashing liquids: Effectively removes grease from dishes
- Laundry detergents: Enhances cleaning performance, especially in hard water
- Floor and surface cleaners: Removes stubborn dirt from various surfaces
Other Industries
- Textile: Acts as a wetting agent and dispersant, ensuring even dye distribution
- Oil & gas: Used as an additive in drilling fluids to reduce surface tension
- Construction: Used as a foaming agent in lightweight materials such as gypsum boards and foam concrete
Key Advantages of SLES
- High cleaning and foaming efficiency
- Stable across various pH levels and water hardness conditions
- Mild and relatively safe when used at appropriate concentrations
- Biodegradable and environmentally friendly
Handling and Safety
- Personal protection: Wear gloves and safety goggles during handling
- Storage: Keep in tightly sealed drums, store in a cool, dry, well-ventilated area away from direct sunlight; ideal temperature: 20–30°C
Emergency Measures:
- Eye contact: Rinse immediately with plenty of water for at least 15 minutes
- Skin contact: Wash thoroughly with soap and water
- Spillage: Absorb with suitable materials and dispose of according to industrial waste regulations
For purchasing or consultation, please contact:
Ms. Giang: +84 896 672 886
Email: giang.nguyenthithu@atpcorporation.com.vn
