Top ProductSodium Laureth Sulfate
ELSURFACTM – SES28
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Sodium Laureth Sulfate (SLES) is a widely used surfactant in personal care and cleaning products. Known for its excellent foaming and emulsifying properties, SLES is a key ingredient in shampoos, body…
CAS Number
68891-38-3
HS Code
3402.11.90/3402.39.00
INCI Name
Sodium Laureth Sulfate (SLES)
Molecular Formula
C₁₂H₂₆Na₂O₅S
Top ProductSodium Laureth Sulfate
ELSURFACTM – SES28
Sodium Laureth Sulfate (SLES) is a widely used surfactant in personal care and cleaning products. Known for its excellent foaming and emulsifying properties, SLES is a key ingredient in shampoos, body washes, and household cleaners. It effectively removes dirt and oil, providing…
CAS Number
68891-38-3
INCI Name
Sodium Laureth Sulfate (SLES)
HS Code
3402.11.90/3402.39.00
Molecular Formula
C₁₂H₂₆Na₂O₅S
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Product Specification
Physical Properties
| Property | Specification |
|---|---|
| Appearance | Colourless to Off-White liquid |
| Odor | Nearly odorless |
| Molecular Weight (G/Mol) | 420.5 |
| Density Or Specific Gravity | 1.04 g/cm3 at 20℃ |
| Viscosity | 25000mPa.s. (25°C) |
| Ph (If Aqueous Solution) | 7.0 – 8.5 (10% aqueous solution) |
| Hlb Value | 40 |
Chemical Properties
| Property | Specification |
|---|---|
| Incompatibilities | Strong oxidizers and acids |
| Hazardous Reactions | Releases toxic sulfur oxides when heated. |
Thermal Properties
| Property | Specification |
|---|---|
| Melting Point | 10-15 °C |
| Boiling Point | >100°C |
Processing Methods & Reference Formulations
A. Shampoo
Optimize SLES concentration for effective cleansing while minimizing irritation, and to include moisturizing agents to offset potential dryness and enhance scalp comfort. Add it slowly under gentle stirring to minimize foam generation. Maintain formulation pH between 5.5–6.5 for scalp compatibility and stability.
| Key Ingredients | Indicative Dosage (% w/w) |
|---|---|
| Sodium Lauryl Ether Sulfate (SLES, 70%) | 8.00% |
| Cocamidopropyl Betaine | 5.00% |
| Glycerin | 3.00% |
| Citric Acid (Anhydrous) | 0.50% |
| Phenoxyethanol (Preservative) | 0.50% |
| Fragrance | 0.50% |
| Demineralized Water | 82.50% |
B. Body Wash
Always combine SLES with a milder co-surfactant like Cocamidopropyl Betaine (CAPB) to reduce skin irritation and boost foam quality. Add slowly under gentle stirring to avoid excessive foaming. Adjust pH to 5.0–5.5 for skin compatibility and optimal product performance.
| Key Ingredients | Indicative Dosage (% w/w) |
|---|---|
| Sodium Lauryl Ether Sulfate (SLES, 70%) | 10.00% |
| Cocamidopropyl Betaine | 5.00% |
| Glycerin | 3.00% |
| Sodium Chloride | 1.00% |
| Preservative (e.g., Phenoxyethanol) | 0.50% |
| Fragrance | 0.50% |
| Citric Acid (to adjust pH) | 0.50% |
| Demineralized Water | 79.50% |
C. Laundry Detergent Liquid
In detergent production, pre-dilute Sodium Lauryl Ether Sulfate (SLES) with deionized water before adding to the batch to prevent gel formation. Add it slowly under gentle stirring to maintain smooth consistency and avoid air entrapment.
| Key Ingredients | Indicative Dosage (% w/w) |
|---|---|
| Sodium Lauryl Ether Sulfate (SLES) | 9-10% |
| LABSA (96%) | 3-6.2% |
| Caustic soda | 0.2-0.83% |
| CDEA (70%) | 1-2% |
| AEO-9 | 1-4% |
| EDTA-2Na | 0.2-0.5% |
| Deionized water, | 50-60% |
| Fragrance, Dye, Preservatives, Salt (NaCl) |
D. Liquid Soap
Pre-dilute SLES (70%) with deionized water to ease incorporation and reduce foaming during mixing. In liquid soap production, add Sodium Lauryl Ether Sulfate (SLES) slowly to the water phase under gentle stirring to avoid excessive foaming. Combine with mild co-surfactants (e.g., CAPB) to enhance foam and skin feel.
| Key Ingredients | Indicative Dosage (% w/w) |
|---|---|
| Sodium Laureth Sulfate (SLES 70%) | 5% |
| Sodium Lauryl Sulfate (SLS 92%) | 1.5% |
| Cocamidopropyl Betaine | 5% |
| Cocamide DEA (CDEA) | 1% |
| Glycerin | 1% |
| EDTA-2Na | 0.1% |
| Salt | 2% |
| Deionized Water | 70-80% |
| Pigment |
Dosing Guidelines
A. Dosing by Application
| Products | Authorized dosage |
|---|---|
| Shampoos | 10-25% |
| Liquid Soaps | 5-15% |
| Skin Cleansers | 1-5% |
About Sodium Laureth Sulfate
Sodium Laureth Sulfate (SLES) is a versatile surfactant widely used in the personal care and cleaning industries. As a key ingredient in shampoos, body washes, and household cleaners, SLES is known for its excellent foaming and emulsifying properties. It effectively removes dirt and oil, providing a rich lather and enhancing the cleaning performance of formulations. SLES manufacturers focus on producing high-quality, consistent products to meet the demands of global markets, particularly in North America. The production process is carefully controlled to ensure purity and stability, which are crucial for the compound's effectiveness in various applications. Sustainability is a growing focus for SLES manufacturers, with many adopting greener practices to minimize environmental impact. These efforts include optimizing energy use during production and ensuring biodegradability. The trend toward eco-friendly manufacturing aligns with the increasing demand for sustainable raw materials in the chemical industry. Beyond its role in personal care and cleaning, SLES is also used in industrial applications where its surfactant properties are valued. Its widespread use across multiple sectors underscores the importance of SLES as a fundamental compound in modern industry.
- Excellent Foaming Ability: SLES produces a rich, stable foam, enhancing the sensory experience in personal care products.
- High Detergency: Effective at breaking down and removing dirt and grease, making it ideal for cleaning applications.
- Good Solubility: Easily dissolves in water, ensuring even distribution in formulations.
- Biodegradable: Environmentally friendly, breaking down naturally to reduce ecological impact.
- Versatile Use: Applicable in a wide range of products, from personal care to industrial cleaning solutions.
About Sodium Laureth Sulfate
Sodium Laureth Sulfate (SLES) is a versatile surfactant widely used in the personal care and cleaning industries. As a key ingredient in shampoos, body washes, and household cleaners, SLES is known for its excellent foaming and emulsifying properties. It effectively removes dirt and oil, providing a rich lather and enhancing the cleaning performance of formulations. SLES manufacturers focus on producing high-quality, consistent products to meet the demands of global markets, particularly in North America. The production process is carefully controlled to ensure purity and stability, which are crucial for the compound's effectiveness in various applications. Sustainability is a growing focus for SLES manufacturers, with many adopting greener practices to minimize environmental impact. These efforts include optimizing energy use during production and ensuring biodegradability. The trend toward eco-friendly manufacturing aligns with the increasing demand for sustainable raw materials in the chemical industry. Beyond its role in personal care and cleaning, SLES is also used in industrial applications where its surfactant properties are valued. Its widespread use across multiple sectors underscores the importance of SLES as a fundamental compound in modern industry.
- Excellent Foaming Ability: SLES produces a rich, stable foam, enhancing the sensory experience in personal care products.
- High Detergency: Effective at breaking down and removing dirt and grease, making it ideal for cleaning applications.
- Good Solubility: Easily dissolves in water, ensuring even distribution in formulations.
- Biodegradable: Environmentally friendly, breaking down naturally to reduce ecological impact.
- Versatile Use: Applicable in a wide range of products, from personal care to industrial cleaning solutions.
Regulatory Compliance
| Region | Max Allowed Level | Notes | Certification Body |
|---|---|---|---|
| Spain | 0.4% | SLES is permitted as a processing aid for washing apples and citrus fruits at a maximum dose of 0.4% v/v in solution. | - |
| United States | - | SLES is listed on the US TSCA inventory. No specific maximum for cosmetics. | FDA |
| India | - | No explicit max for finished products. | - |
| European Union | - | No concentration limit set by regulation. | SCCS (Scientific Committee on Consumer Safety) |
| Japan | - | No specific maximum for cosmetics. | MHLW – Ministry of Health, Labour and Welfare |
| Australia | - | No specific maximum for cosmetics. | - |
| China | - | No specific maximum for cosmetics. | NMPA - National Medical Products Administration |
| Korea, Republic of | - | No specific maximum for cosmetics. | MFDS - Ministry of Food and Drug Safety |
| ASEAN | - | No specific maximum for cosmetics. | - |
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