Sodium Lauryl Ether Sulfate CAS 68585-34-2

Sodium Lauryl Ether Sulphate (SLES) is a high-active anionic surfactant widely used in household detergents, personal care products and industrial cleaners for its excellent foaming, wetting and emulsifying performance. It is milder than traditional LABSA while still providing strong detergency, making it suitable for cost-effective, high-foam formulations in both consumer and industrial markets.

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Physicochemical Properties

*The above data are typical factory values for SLES 70% and can be adjusted slightly between different production batches according to customer specifications.

Product Introduction

Sodium Lauryl Ether Sulphate (SLES 70%) is produced by ethoxylation of natural or synthetic fatty alcohol (mainly C12-C14), followed by sulfation and neutralization with sodium hydroxide. The presence of 2–3 moles of ethylene oxide (EO) makes SLES milder and more soluble than straight-chain alkylbenzene sulfonates, while still ensuring high detergency and foam.

Key advantages for formulators:

• Excellent foaming and wetting – rich, stable foam even in hard water systems
• Good skin mildness compared with LABSA-only systems
• High active content (70%) – flexible to dilute into different products
• Good compatibility with other anionic, nonionic and amphoteric surfactants
• Cost-effective choice for mass-market detergents and personal care products

This grade is suitable for household, personal care and institutional & industrial (I&I) formulations where consistent quality and competitive cost are critical.

Applications

1. Household Detergents

• Liquid laundry detergents & gel detergents – main anionic surfactant providing detergency and foam
• Dishwashing liquids – strong grease-cutting with rich foam, often combined with LABSA and betaines
• Multi-purpose cleaners & floor cleaners – improves wetting and soil removal on hard surfaces

Benefits for your formulations:

• High foam height and foam stability
• Good performance in both soft and moderately hard water
• Can reduce total LABSA dosage, helping to lower irritation and phosphate usage

2. Personal Care & Cosmetic Products

• Shampoos and hair cleansers
• Body wash, shower gel and liquid soaps
• Facial cleansers and hand wash

In personal care, SLES is often combined with cocamidopropyl betaine and other mild co-surfactants to balance foam, skin feel and viscosity.

3. Industrial & Institutional Cleaners

• Vehicle wash and car-care detergents
• Textile and leather wetting & scouring agents
• Industrial degreasers and workshop cleaners

For I&I applications, SLES offers strong wetting and emulsification of oily and particulate soils, while maintaining good rinsability.

Storage Conditions

• Store in a cool, dry and well-ventilated area.
• Recommended storage temperature: 5–35 °C. Avoid prolonged exposure below 5 °C (product may gel) or above 40 °C (possible quality change).
• Keep containers tightly closed when not in use to prevent contamination and moisture uptake.
• Protect from direct sunlight, heat sources and strong oxidizing agents.
• Under proper storage conditions, typical shelf life is 12 months from production date; please refer to the COA for the exact guarantee period.

Safety Precautions

• SLES is classified as an irritant to eyes and, at high concentrations or long contact time, may cause irritation to skin and respiratory tract.
• Avoid direct contact with eyes and skin. Wear suitable gloves, protective goggles and protective clothing when handling concentrated product.
• In case of eye contact: rinse immediately with plenty of water for at least 15 minutes and seek medical advice if irritation persists.
• In case of skin contact: wash with soap and water; remove contaminated clothing.
• Ensure good ventilation in the working area; avoid inhalation of aerosol or mists.
• Do not discharge concentrated product directly into surface water or soil; follow local regulations for wastewater and waste disposal.
• For full details, refer to the official Safety Data Sheet (SDS) supplied with the product.