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    • Sodium 2-ethylhexyl Sulfate CAS 126-92-1
    • Sodium 2-ethylhexyl Sulfate CAS 126-92-1

    Sodium 2-ethylhexyl Sulfate CAS 126-92-1

    Sodium 2-ethylhexyl Sulfate, also called sodium etasulfate or sodium isooctyl sulfate, CAS 126-92-1, is a low-foaming branched C8 anionic surfactant supplied as an approximately 40% aqueous solution. Confirm the required grade and specification, then request a quotation with COA/TDS/SDS for bulk supply.

    • CAS: 126-92-1
    • Synonyms: Sodium etasulfate, Sodium isooctyl sulfate, Sulfuric acid mono(2-ethylhexyl) ester sodium salt, Sodium 2-ethylhexyl sulphate, Mono(2-ethylhexyl) sulfate sodium salt
    • Einecs: 204-812-8
    • Molecular Formula: C₈H₁₇NaO₄S
    • Grade: Industrial-grade
    • Package: 200 kg drum / 1000 kg IBC (customizable)
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    Product Description

    Sodium 2-ethylhexyl Sulfate CAS 126-92-1 is a branched C8 anionic surfactant, also known as sodium etasulfate or sodium isooctyl sulfate, with molecular formula C8H17NaO4S, molecular weight about 232.27 and EINECS 204-812-8.

    Synonyms: Sodium etasulfate; Sodium isooctyl sulfate; Sulfuric acid mono(2-ethylhexyl) ester sodium salt; Sodium 2-ethylhexyl sulphate; Mono(2-ethylhexyl) sulfate sodium salt.

    CAS: 126-92-1.

    It has the molecular formula C8H17NaO4S and a molecular weight of about 232.27 g/mol.

    It is supplied as a colorless to light yellowish transparent liquid with an active content of approximately 40%.

    A 10% aqueous solution has a pH of about 7.0–9.5, and the product is anionic.

    The branched 2-ethylhexyl chain resists tight molecular packing, giving excellent stability in high-alkali and high-electrolyte media.

    It is a low-foaming wetting and hydrotropic agent for heavy-duty alkaline degreasers and hard-surface cleaners.

    In cotton mercerizing, it improves penetration of concentrated caustic soda into the fiber for uniform treatment.

    In metal finishing and electroplating, it provides rapid wetting and helps remove oils, scales and residues before plating.

    It is also used as a wetting agent in high-salt agrochemical concentrates to improve leaf coverage.

    It remains soluble and surface-active where linear lauryl sulfate surfactants may salt out or lose wetting performance.

    It is a concentrated industrial chemical and can cause eye irritation and skin dryness on prolonged contact.

    Store between 5 °C and 35 °C in HDPE, fiberglass or stainless-steel containers, keeping the package tightly sealed.

    Confirm appearance, active content, pH, ionic nature, residual alcohol and electrolyte tolerance as required.

    Protect from prolonged contact with untreated carbon steel and keep the container closed to limit evaporation and pH shift.

    Confirm packaging with the requested quantity and destination requirements.

    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 and specification, quantity, packaging, destination and document needs.

    FAQ - Technical & Supply Chain

    • Q:

      What is Sodium 2-ethylhexyl Sulfate CAS 126-92-1?

      A: Sodium 2-ethylhexyl Sulfate CAS 126-92-1 is a branched C8 anionic surfactant with molecular formula C8H17NaO4S, molecular weight about 232.27, and EINECS 204-812-8. It is also known as sodium isooctyl sulfate or sodium etasulfate.
    • Q:

      How does Sodium 2-ethylhexyl Sulfate differ from Sodium Lauryl Sulfate?

      A: Sodium 2-ethylhexyl Sulfate has a short branched 2-ethylhexyl chain, while Sodium Lauryl Sulfate has a linear C12 chain. The branched structure gives lower foaming and better stability in concentrated alkali or electrolyte systems, where ordinary lauryl sulfate surfactants may salt out or lose wetting performance.
    • Q:

      Why is Sodium 2-ethylhexyl Sulfate stable in high-alkali and high-electrolyte media?

      A: Its branched hydrophobic chain resists tight molecular packing, so it remains soluble and surface-active in highly caustic or salt-loaded baths. This makes it suitable for formulations containing high levels of sodium hydroxide, phosphates, or other electrolytes.
    • Q:

      How is Sodium 2-ethylhexyl Sulfate used in textile mercerizing and industrial cleaning?

      A: In cotton mercerizing, it improves penetration of concentrated caustic soda into the fiber, supporting uniform treatment. In industrial and institutional cleaning, it acts as a low-foaming wetting and hydrotropic agent in heavy-duty alkaline degreasers and hard-surface cleaners.
    • Q:

      What is its function in metal finishing and electroplating?

      A: In acid or alkaline pickling, electroplating, and surface treatment, it provides rapid wetting and helps remove oils, scales, and residues before plating. Its low foam and high electrolyte tolerance help maintain uniform coverage in processing baths.

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