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    HomeProductsDaily ChemicalsEmulsifiers & SurfactantsSodium Lauryl Sulfate Granular CAS 151-21-3
    • Sodium Lauryl Sulfate Granular CAS 151-21-3

    Sodium Lauryl Sulfate Granular CAS 151-21-3

    Sodium Lauryl Sulfate Granular (CAS 151-21-3) is a premium, low-dust anionic surfactant utilizing its needle-like physical form to ensure safer handling and easier dispersion in manufacturing processes compared to fine powders. Chemically identified as Sodium dodecyl sulfate (SDS) or SLS, these white free-flowing granules function as a powerful foaming and emulsifying agent with excellent solubility in warm water. As a high-purity Alkyl sulfate surfactant (commonly known as K12), it is extensively integrated into oral care products (toothpastes), solid bath preparations (bath bombs), and pharmaceutical solid dosage forms to provide rich lather and wetting properties without the respiratory hazards associated with airborne dust. We ensure bulk supply capabilities for this material, providing access to competitive factory pricing and customized specifications to meet specific particle size and bulk density requirements. Full technical documentation, including MSDS, TDS, COA, is available to support compliance and safety protocols.

    • CAS: 151-21-3
    • Synonyms: Sodium dodecyl sulfate, SLS Granules, SDS, Sodium lauryl sulphate, Dodecyl sodium sulfate, Sulfuric acid monododecyl ester sodium salt
    • Einecs: 205-788-1
    • Molecular Formula: C12H25NaO4S
    • Grade: Technical Grade / Detergent Grade / Cosmetic Grade / Toothpaste Grade
    • Package: 25kg/Kraft Paper Bag with PE inner liner (Net Weight)
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    Product Description

    Sodium Lauryl Sulfate (SLS), often referred to as K12 in the industry, is a highly effective anionic surfactant derived from natural fatty alcohols (Coconut or Palm oil).

    This specific product is supplied in Granular (Needle) form. Compared to traditional powder forms, the granular structure offers significant advantages: it is dust-free, reducing inhalation risks for workers, and possesses excellent flowability, making it easier to handle and dose. It has exceptional emulsifying, foaming, osmosis, detergency, and dispersing properties. It dissolves easily in water and is compatible with various other surfactants. It is biodegradable and widely used as a core ingredient in personal care and industrial cleaning applications.

    1 Physicochemical Properties
    2 Applications
    3 Storage Conditions
    4 Safety Precautions

    Physicochemical Properties

    The following specifications are based on our standard export quality for High-Purity Granular SLS:

    Test ItemSpecification (Standard)
    AppearanceWhite to off-white Granules / Needles
    Active Matter92.0% – 95.0% min
    Petroleum Ether Soluble Substances≤ 1.5%
    Inorganic Salts (NaCl + Na2SO4)≤ 5.0%
    Moisture / Volatile Matter≤ 5.0%
    pH Value (1% Solution, 25°C)7.5 – 9.5
    Whiteness (WG)≥ 90
    Biodegradability> 90%
    SolubilityEasily soluble in water
    OdorCharacteristic faint fatty odor

    Applications

    Sodium Lauryl Sulfate Granular is a versatile raw material used in numerous industries:

    1. Personal Care & Cosmetics:
      • Toothpaste: Ideally suited for toothpaste due to its granular form (easy to process) and rich foaming ability.
      • Hair Care: Primary foaming agent in shampoos and conditioners.
      • Skin Care: Used in bubble baths, hand soaps, and shaving creams.
    2. Detergent Industry:
      • Key ingredient in liquid detergents, laundry powders, and heavy-duty cleaners for its superior grease-cutting power.
    3. Construction & Building Materials:
      • Concrete Admixture: Acts as an air-entraining agent in concrete and mortar to improve workability and freeze-thaw resistance.
      • Used in the production of gypsum boards.
    4. Industrial Applications:
      • Emulsion Polymerization: Used as an emulsifier in the manufacturing of PVC, rubber, and acrylate polymers.
      • Textile & Leather: Used as a scouring agent, wetting agent, and softening agent.
      • Fire Fighting: Component in firefighting foams.

    Storage Conditions

    • Environment: Store in a cool, dry, and well-ventilated warehouse.
    • Temperature: Avoid high temperatures; store below 40°C.
    • Moisture Control: The product is hygroscopic. Keep bags tightly sealed when not in use to prevent clumping.
    • Incompatibility: Store away from strong oxidizing agents.
    • Stacking: Do not stack pallets excessively high to prevent crushing the granules.

    Safety Precautions

    • Classification: SLS is classified as a skin and eye irritant.
    • Eye Contact: Causes serious eye irritation. In case of contact, rinse immediately with plenty of water for at least 15 minutes and seek medical advice.
    • Skin Contact: Prolonged contact may cause dryness or irritation. Wash with soap and water.
    • Inhalation: Although granular form reduces dust, inhalation of dust should still be avoided. Wear a dust mask (N95) and safety goggles during handling.
    • Transport: Not classified as dangerous goods for transport (Non-Hazardous).

    FAQ - Technical & Supply Chain

    • Q:

      What is the primary advantage of specifying Sodium Lauryl Sulfate Granular (Needles) over the Powder form?

      A: The Granular (or Needle) form of Sodium Lauryl Sulfate (CAS 151-21-3) significantly reduces airborne dust during handling and mixing, improving worker safety and minimizing product loss, while maintaining the same chemical efficacy and solubility profile as the powder.
    • Q:

      Is this granular surfactant suitable for use in toothpaste manufacturing?

      A: Yes, this material is the industry standard foaming agent for toothpaste and oral care formulations due to its high foaming capacity, neutral taste profile (in high purity grades), and ability to be easily dispersed in the viscous paste matrix.
    Documents

    Documents and Product Support

    For product review and sourcing evaluation, supporting documents can be coordinated according to the product type, inquiry stage, and order requirements.

    • COA for batch-based quality reference
    • TDS for key physical and chemical information
    • SDS / MSDS for handling, storage, and safety reference
    • Packing information for sample, trial, and bulk orders
    • Technical communication based on application and specification requirements
    Quotation

    Information to Confirm Before Quotation

    Clear sourcing information helps reduce specification mismatch and allows a more accurate quotation before sample or bulk order discussion.

    • Product name and CAS number
    • Application or intended end use
    • Required purity, grade, or specification
    • Sample quantity, trial order, or bulk demand
    • Preferred packing form or net weight
    • Destination country or port
    • Required documents or compliance expectations
    Storage & Handling

    Packaging, Storage, and Handling Notes

    Packaging form, storage conditions, shelf life, and shipment arrangements should be confirmed according to the product characteristics, package size, and destination requirements.

    Before order confirmation, buyers are advised to review the corresponding product documents and confirm whether any special storage, labeling, or handling requirements apply.

    Supply Support

    Sample, Bulk Order and Repeat Supply Support

    Support can be arranged for sample discussion, bulk supply planning, packaging confirmation, and routine sourcing communication based on the actual product and order requirements.

    For repeat-use formulations or long-term procurement plans, buyers may discuss specification consistency, packaging preferences, delivery expectations, and document coordination in advance.

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    Anionic Surfactant Cleaning Ingredient Detergent Surfactant Foaming Agent

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