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Sodium Lauryl Ether Sulfate 70% (SLES AES)
Product Name: Sodium Lauryl Ether Sulfate 70% (SLES / AES)
Chemical Name: Sodium Laureth Sulfate / Sodium Lauryl Ether Sulfate
CAS: 68585-34-2 (primary); 9004-82-4 (alternative); 3088-31-1 (1-mole variant)
Molecular Formula: C14H29NaO5S（n=1）；C18H37NaO7S（n=3）
Formula Weight: 376.48 – 429 g/mol (varies by EO mole count)
Synonyms: SLES; AES; Sodium Laureth Sulfate; Texapon N70; Calfoam® ES-703; STEOL® CS-370; Lauryl Ether Sulfate; Sodium Alkyl Ether Sulfate
Application:
Personal Care (Shampoos, Shower Gels, Body Wash, Facial Cleansers, Bubble Bath, Hand Soaps), Household Cleaning (Dishwashing Liquids, Laundry Detergents, Floor Cleaners), Industrial & Institutional Cleaning (Degreasers, Car Wash, Industrial Cleaners), Textile & Leather Processing (Wetting Agents, Degreasing Agents)
Description
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1.Product Description
Achieve Superior Foaming and Cleaning Performance with SLES 70% – The Premium Anionic Surfactant for Personal Care and Detergent Applications.
Sodium Lauryl Ether Sulfate 70% (SLES), also widely recognized as AES (Alcohol Ether Sulfate), is a high-performance anionic surfactant that stands as the cornerstone of modern cleansing formulations. This sophisticated surfactant features a unique molecular structure with an average of 2-3 moles of ethylene oxide (EO) per molecule, delivering exceptional mildness while maintaining superior cleaning and foaming capabilities .
What distinguishes SLES 70% from conventional surfactants is its exceptional combination of performance characteristics. Unlike its close relative Sodium Lauryl Sulfate (SLS), the ethoxylation process significantly reduces skin and eye irritation while enhancing solubility and thickening properties . This makes it the preferred choice for high-quality personal care products that demand both efficacy and gentleness.
Key differentiators:
Anionic Surfactant Chemistry: Provides excellent detergency, emulsification, wetting, and foaming properties with strong resistance to hard water .
Superior Foaming Performance: Delivers rich, dense, and stable foam with excellent flash foaming characteristics, ideal for premium cleansing products .
Excellent Compatibility: Highly compatible with other anionic, non-ionic, and amphoteric surfactants, enabling versatile formulation options .
High Biodegradability: Environmentally friendly with high biodegradation rates, meeting modern sustainability standards .
Low 1,4-Dioxane Options: Advanced manufacturing technologies yield ultra-low residual 1,4-dioxane levels for enhanced safety profiles .
Our SLES 70% is manufactured under strict quality controls with ≥69-72% active matter, low sodium sulfate content (≤1.5%), and consistent batch-to-batch performance, meeting international standards for personal care and industrial applications.
2.Product Specifications (Technical Data Sheet)
| Property | Specification | Insight |
| Product Name | Sodium Lauryl Ether Sulfate 70% (SLES / AES) | Premium anionic surfactant |
| Appearance | White to light yellow viscous paste | Free-flowing, easy to handle |
| CAS No. | 68585-34-2 (primary); 9004-82-4; 3088-31-1 | Multiple registry numbers for different EO levels |
| EINECS/EC No. | 500-223-8 / 221-416-0 / 205-788-1 | Listed in European inventory |
| Molecular Formula | RO(CH₂CH₂O)ₙSO₃Na (R=C₁₂-₁₅, n=2-3) | Alkyl ether sulfate structure |
| Formula Weight | 376.48 – 429 g/mol | Varies by EO content |
| Solubility | Soluble in water; soluble in seawater; insoluble in oil and organic solvents | Excellent water solubility |
| Ionic Style | Anionic | Compatible with other anionic and non-ionic surfactants |
| Active Matter | 70 ± 2% (min. 69-72%) | High active content for cost-effective formulations |
| Unsulfated Matter | ≤ 2.5 – 3.5% | High purity with minimal impurities |
| Sodium Sulfate | ≤ 1.5% | Low salt content for formulation flexibility |
| Sodium Chloride | ≤ 0.5% | Low salt content |
| pH Value (1% solution) | 7.0 – 9.5 (6.5-8.5 for some grades) | Near-neutral to mildly alkaline |
| Color (5% solution, Klett) | ≤ 20-30 | Excellent color stability |
| 1,4-Dioxane | ≤ 20-30 ppm (ultra-low grades available) | Low residual levels for safety |
| Boiling Point | >100°C | Thermal stability |
| Flash Point | >94°C | Safe handling parameters |
| Viscosity | ~6,000 cps (at 45°C) | Paste consistency for easy dosing |
| Density | 1.06 g/cm³ (at 25°C) | Good handling characteristics |
| Storage Conditions | Store in plastic or plastic-lined containers; keep tightly sealed; store below 25-30°C; avoid prolonged exposure to high temperatures; protect from strong oxidizing agents | Shelf life: 12 months under proper storage |
| Packing | 170-220 kg plastic drums; 480 lb poly drums; 2300 lb poly totes; 50 kg HMHDPE drums; bulk quantities available | Flexible packaging options |
| Application | Personal care, household detergents, I&I cleaning, textile processing, leather processing | Versatile across multiple industries |
3.Product Application
Personal Care Industry – Primary Application:
SLES 70% is the preferred surfactant for premium personal care formulations, delivering rich foam and gentle cleansing :
| Application Type | Recommended Usage | Performance Notes |
| Shampoos | 10-25% of formulation | Excellent flash foam; compatible with conditioning agents; can be used in 2-in-1 formulations |
| Shower Gels & Body Wash | 10-20% of formulation | Creates rich, dense foam; gentle on skin; thickening easily achieved with salt |
| Facial Cleansers | 5-15% of formulation | Mild formulation with good cleansing; compatible with amphoteric co-surfactants |
| Bubble Bath | 15-30% of formulation | Abundant, long-lasting foam; good hard water tolerance |
| Hand Soaps | 8-20% of formulation | Excellent cleansing with low irritation potential |
| Liquid Hand Cleaners | 10-20% of formulation | Strong detergency with mild skin feel |
Household & Institutional Cleaning:
SLES 70% delivers superior cleaning performance across a wide range of household and industrial applications :
| Application Type | Recommended Usage | Performance Notes |
| Hand Dishwashing Liquids | 15-25% of formulation | Excellent grease-cutting; abundant foam; good hard water stability |
| Laundry Detergents | 5-15% of formulation | Effective soil removal; replaces or reduces LAS, enabling phosphate reduction |
| Automatic Dishwashing | 2-8% of formulation | Good wetting and rinsing properties |
| Hard Surface Cleaners | 2-10% of formulation | Effective degreasing; good wetting properties |
| Floor Cleaners | 1-5% of formulation | Excellent wetting and spreading |
| Car Wash Products | 5-15% of formulation | High foaming; effective dirt removal; safe for automotive surfaces |
| Industrial Degreasers | 5-20% of formulation | Strong emulsification of oils and greases |
Textile, Leather & Industrial Applications:
Beyond cleaning applications, SLES 70% serves as a versatile processing aid :
| Application Type | Function | Notes |
| Textile Wetting Agents | Improves penetration of dyes and finishes | Excellent wetting properties at low concentrations |
| Textile Degreasing | Removes oils and lubricants from fibers | Effective emulsification of processing oils |
| Leather Processing | Degreasing and wetting agent | Used in beamhouse operations |
| Emulsion Polymerization | Emulsifier | Suitable for latex and polymer production |
| Agricultural Formulations | Emulsifier and wetting agent | Used in pesticide and herbicide formulations |
Key Performance Features:
Superior Foaming: Provides excellent flash foaming and foam stability, creating rich, dense lather that consumers associate with quality cleansing products .
Mildness Advantage: The ethoxylation (2-3 EO) significantly reduces skin and eye irritation compared to non-ethoxylated SLS, making it suitable for mild personal care formulations .
Excellent Cleaning: Demonstrates outstanding detergency, emulsification, and wetting properties across a wide range of applications .
Hard Water Stability: Maintains performance in hard water conditions, preventing soap scum formation and ensuring consistent results .
Formulation Flexibility: Easy to thicken with salt; compatible with a wide range of formulation ingredients; stable across varying pH conditions .
Environmental Profile: Highly biodegradable, meeting modern environmental standards; low residual 1,4-dioxane options available for enhanced safety .
CleanGredients® Listed: Some grades are EPA Safer Choice certified, streamlining approval for environmentally preferred products
4.Packaging
Usually is 170Kg/plastic bucket with inner PE liner Or provide customized packaging according to customer requirements.
5.Our advantage:
1) Provide free samples for testing or comparing the effect difference and cost performance.
2) Fast response speed, customers' questions at any time will be responded to in two hours.
3) Fast delivery: the fastest delivery can be made on the same day.
4)Different packaging solutions: provide various packaging options according to customer requirements.
5)Technical guidance: provide improved whitening and coloring formulas and guidance according to customer production materials.
6) Sample retention or sample mailing before bulk delivery.
7) Providing certificationes, such as Reach certification.
8) Different payment methods: TT LC, etc.
9) Providing door-to-door DDP service.
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