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    Related: Anionic Surfactant SLS AOS
    • Sodium Lauryl Ether Sulfate CAS 68585-34-2
    • Sodium Lauryl Ether Sulfate CAS 68585-34-2
    • Sodium Lauryl Ether Sulfate CAS 68585-34-2

    Sodium Lauryl Ether Sulfate CAS 68585-34-2

    Sodium Lauryl Ether Sulfate (SLES 70%), CAS 68585-34-2, is a high-activity anionic surfactant supplied for household detergents, personal care and industrial cleaners. Confirm active matter, then request a quotation with COA/TDS/SDS for bulk supply.

    • CAS: 68585-34-2
    • Synonyms: SLES, Sodium Laureth Sulfate, Sodium Alkyl Ether Sulfate, AES, Sodium polyoxyethylene lauryl ether sulfate
    • Einecs: 500-223-8
    • Molecular Formula: C₁₂H₂₅O(CH₂CH₂O)ₙSO₃Na
    • Grade: SLES 70%, Industrial / Cosmetic Grade
    • Package: 170 kg / 200 kg / 220 kg HDPE drums 1,000–1,100 kg IBC totes Bulk ISO tank available on request
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    Product Description

    Sodium Lauryl Ether Sulfate, CAS 68585-34-2, also known as SLES or sodium laureth sulfate, is an ethoxylated anionic surfactant; the EC/EINECS number is 500-223-8.

    Synonyms: SLES; sodium laureth sulfate; sodium alkyl ether sulfate; AES; sodium polyoxyethylene lauryl ether sulfate.

    CAS: 68585-34-2.

    Molecular formula: C₁₂H₂₅O(CH₂CH₂O)ₙSO₃Na.

    It is made by ethoxylating lauryl alcohol, then sulfating and neutralizing the intermediate to give good foaming, wetting and water solubility.

    EC number: 500-223-8.

    It is a white to light-yellow viscous paste or flowable gel at 25 °C, easily soluble in water and forming a clear to slightly opalescent solution.

    Active matter (as SLES) is 70 ± 2%; unsulfated matter ≤2.0–3.5% and sodium sulfate ≤1.0–1.5%.

    A 1–2% aqueous solution at 25 °C has a pH of 7.0–9.5; density at 25 °C is about 1.05–1.10 g/cm³.

    It is used as a high-foaming primary surfactant in shampoos, body washes, facial cleansers and hand soaps.

    It is used in dishwashing liquids, laundry detergents and industrial cleaners, especially for clear liquid formulations.

    It is milder and more water-soluble than SLS and responds to electrolytes such as sodium chloride for viscosity adjustment.

    Salt response depends on active content, ethoxylation level and the other surfactants present in the formulation.

    Confirm active matter, pH, color, unsulfated matter, 1,4-dioxane where applicable, sulfate or chloride, viscosity and preservative status.

    Store in tightly closed, compatible containers in a cool, dry, well-ventilated area away from strong oxidizers and temperature extremes.

    Confirm packaging with the requested quantity and destination requirements.

    Document requirements should be confirmed from the current specification, SDS, COA or other product-specific files.

    The page is an RFQ entry point and does not state stock, price, MOQ or fixed lead time.

    For an RFQ, state the intended use, required grade, active matter, quantity, packaging, destination and document needs.

    FAQ - Technical & Supply Chain

    • Q:

      What is Sodium Lauryl Ether Sulfate (SLES) CAS 68585-34-2?

      A: Sodium Lauryl Ether Sulfate, CAS 68585-34-2, is an ethoxylated anionic surfactant commonly called SLES or Sodium Laureth Sulfate. It is made by ethoxylating lauryl alcohol and then sulfating and neutralizing the intermediate, which gives good foaming, wetting and solubility in water.
    • Q:

      How is SLES different from SLS?

      A: SLES contains ethylene oxide units, which makes it milder and more water-soluble than non-ethoxylated Sodium Lauryl Sulfate. It is preferred in many personal care and household formulations when lower irritation and better salt-thickening behavior are needed.
    • Q:

      What is SLES used for?

      A: SLES is used as a high-foaming primary anionic surfactant in shampoos, body washes, facial cleansers, hand soaps, dishwashing liquids, laundry detergents and industrial cleaners. It is especially suitable for clear liquid formulations requiring strong cleaning and stable foam.
    • Q:

      How does electrolyte addition affect viscosity?

      A: SLES solutions typically thicken when electrolytes such as sodium chloride are added, allowing formulators to adjust viscosity. Salt response depends on active content, ethoxylation level and the other surfactants present.
    • Q:

      What specifications should be checked before ordering?

      A: For SLES 70%, confirm active matter, pH, color, unsulfated matter, 1,4-dioxane where applicable, sulfate or chloride, viscosity and preservative status. State whether cosmetic or industrial grade is required so the supplier can match the specification.
    • Q:

      How should SLES be stored and handled?

      A: Store in tightly closed, compatible containers in a cool, dry, well-ventilated area, away from strong oxidizers and temperature extremes. Use liquid-chemical handling controls and suitable PPE, and follow the safety information.

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