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    Sodium Sulfate Anhydrous
    Product Data

    Sodium Sulfate, Anhydrous (CAS No. 7757-82-6) is a high-purity inorganic salt manufactured by Dr. Paul Lohmann®. Thanks to its defined composition, excellent stability, and broad compatibility, it is widely used in industrial processes as well as in food, pharmaceutical, and cosmetic industries.

    General Characteristics

    Formula Na2SO4
    Molecular weight 142.0 g/mol
    CAS No.: 7757-82-6
    EINECS No.: 231-820-9
    HS No.: 28331100

    Product number Product parameter Storage conditions | Retest period Additional information
    522017010
    • crystalline powder
    • Ph.Eur.11.Ed.
    • approx. 32 % Na | white |
    Keep well closed, dry and at room temperature.; 36 months API documentation available (ASMF / DMF)
    522017013
    • crystalline powder
    • Ph.Eur.11.Ed. | Low in Endotoxins
    • approx. 32 % Na | white | Solubility 20 °C: ++ |
    Keep well closed, dry and at room temperature.; 36 months
    522017005
    • fine powder
    • Ph.Eur.11.Ed.
    • approx. 32 % Na | white |
    Keep well closed, dry and at room temperature.; 36 months
    522017002
    • crystalline powder
    • chem. pure | E 514(i)
    • approx. 32 % Na | white | Solubility 20 °C: ++ |
    Keep well closed, dry and at room temperature.; 36 months
    522017004
    • crystalline powder
    • Ph.Eur.11.Ed.
    • approx. 32 % Na | white |
    Keep well closed, dry and at room temperature.; 36 months

    ++ > 100 g/l | + 10 - 100 g/l | − 1 - 10 g/l | −− < 1 g/l
    The solubility specified here was measured in water. The solubility is influenced by many factors in the application.

    Benefits of Sodium Sulfate, Anhydrous (CAS No. 7757-82-6)

    With decades of expertise in the production of high-quality Mineral Salts, Dr. Paul Lohmann® offers Sodium Sulfate, Anhydrous with:

    • High Chemical Purity: Produced under strict quality controls to ensure reliable performance across regulated and industrial applications.
    • Anhydrous Composition: Ensures precise dosing, consistent quality, and excellent storage stability.
    • High Thermal and Chemical Stability: Suitable for demanding processing conditions.
    • Versatile Functionality: Can be used as filler, processing aid, carrier, or viscosity regulator.
    • Customizable Specifications: Available in different grades, particle sizes, and bulk densities.
       

    Certifications and Quality Standards

    Sodium Sulfate, Anhydrous is manufactured in compliance with internationally recognized quality and safety standards.

    Key Certifications:

    • GMP Compliance
    • ISO 9001 Quality Management
    • FSSC 22000 Food Safety
    • REACH Registration

    Applications of Sodium Sulfate, Anhydrous (CAS No. 7757-82-6)

    Industrial Applications

    In industrial applications, Sodium Sulfate, Anhydrous is primarily used as a functional auxiliary material that supports stable and reproducible manufacturing processes. In detergent and cleaning product formulations, it serves as a filler and carrier that improves powder flowability, enables uniform distribution of active surfactants, and ensures consistent dosing during large-scale production. Within chemical manufacturing, the product is valued as an inert drying agent, effectively removing residual moisture from solvents and reaction mixtures without interfering with sensitive chemical reactions. In the glass and ceramics industry, Lohtragon® V17 | Type 69 contributes to improved melting behavior, enhanced homogeneity, and reduced bubble formation. Additionally, in textile and dyeing processes, it helps regulate ionic strength in dye baths, enabling even dye uptake and consistent coloration results.

    Sodium Sulfate, Anhydrous is widely used in technical and industrial processes:

    • Detergents & Cleaning Agents: Acts as a filler and processing aid to improve flowability and dosing consistency.
    • Chemical Processing: Used as a drying agent and inert carrier in synthesis and formulation processes.
    • Glass & Ceramics Industry: Supports melting behavior and improves product homogeneity.

    Food Applications

    Authorised as a food additive under E 514(i), Sodium Sulfate Anhydrous is used for technological and processing-related purposes. It functions as a firming agent, acidity regulator, and carrier substance. Sodium Sulfate is commonly used as a carrier for coloring agents. Due to its chemical stability and lack of taste or odor, it is sensorially neutral and enables the homogeneous distribution of minor ingredients in dry food premixes without influencing the sensory characteristics of the final product.

    Pharmaceutical Applications

    Sodium Sulfate, Anhydrous is widely used in pharmaceuticals both as an active ingredient and as an excipient. As an active ingredient, it is primarily employed in osmotic laxatives, where it binds water in the intestine to facilitate bowel movement and support digestion. As an excipient, it serves as a filler, carrier, or stabilizing agent in tablets, capsules, and liquid formulations, helping to regulate ion concentration and maintain the chemical stability of sensitive active substances. During manufacturing, Sodium Sulfate, Anhydrous also aids crystallization and drying processes, acting as an inert agent that optimizes solution properties and processing performance without affecting the efficacy of the final formulation.

    Cosmetic Applications

    In cosmetic formulations, Sodium Sulfate, Anhydrous is valued for its inert nature, compatibility, and formulation stability. It is commonly used to adjust viscosity and texture in creams, lotions, gels, and cleansing products, helping manufacturers achieve consistent rheological properties. As a carrier and bulking agent, it supports the uniform distribution of pigments, fragrances, and cosmetic active ingredients. In addition, it contributes to formulation stability and batch-to-batch consistency, while also facilitating handling and dosing during cosmetic manufacturing processes.

    In cosmetic formulations, Sodium Sulfate, Anhydrous is valued for its stability and inert behavior:

    • Viscosity Control: Helps adjust texture and consistency in creams and lotions.
    • Carrier & Bulking Agent: Ensures homogeneous distribution of active ingredients.
    • Formulation Stabilizer: Contributes to stable and reproducible cosmetic products.

    Biopharmaceutical Applications

    Sodium Sulfate is an important excipient in biopharmaceutical and biotechnological processes. It enables controlled adjustment of process conditions, particularly in complex process steps, including targeted modification of pH and ionic strength. Sodium Sulfate thus contributes significantly to the stabilization of sensitive biomolecules such as proteins and enzymes.
    Sodium Sulfate is used in separation and purification processes, especially in chromatographic applications or precipitation and crystallization processes, to significantly improve selectivity, yield, and reproducibility. Due to its high chemical stability, good solubility, and broad regulatory acceptance, it is ideal for use in GMP-compliant manufacturing processes supporting robust and scalable process control.

    Main functions of Sodium Sulfate, Anhydrous:

    • Process aid: Adjustment and stabilization of pH and ionic strength, as well as increased efficiency in separation and purification processes.
    • Stabilizer: Protection and stabilization of sensitive products such as proteins and enzymes across various process steps.

    Why Choose Dr. Paul Lohmann® for Sodium Sulfate, Anhydrous?

    Dr. Paul Lohmann® combines advanced manufacturing technology with decades of mineral salt expertise. Our Sodium Sulfate, Anhydrous offers consistent quality, regulatory reliability, and application-oriented customization—making it the ideal choice for industrial, food, pharmaceutical, and cosmetic applications.
    Contact us for tailored grades, technical documentation, and formulation support.

    Frequently asked questions about this product

    What is Sodium Sulfate, Anhydrous?

    It is the water-free form of Sodium Sulfate, an inorganic salt used as a functional ingredient and processing aid in various industries.

    What are the physical properties of Sodium Sulfate, Anhydrous?

    It appears as a white, crystalline powder or granulate, is highly stable, and readily soluble in water.

    Is Sodium Sulfate, Anhydrous suitable for regulated applications?

    Yes. Food- and pharma-grade qualities are produced in compliance with GMP, ISO 9001, and FSSC 22000 standards.

    What is the advantage of the anhydrous form of Sodium Sulfate?

    The absence of crystal water ensures precise dosing, better storage stability, and predictable performance in formulations.

    In which industries is Sodium Sulfate, Anhydrous used?

    It is used in industrial manufacturing, detergents, food processing (where permitted), pharmaceuticals, and cosmetic formulations.

    The information given on this Website corresponds to our current knowledge. We warrant in the frame of our General Terms and Conditions of Sale that our products are manufactured in accordance with the specifications. However, we disclaim any liability with regard to the suitability of our products for a particular purpose or application or their compatibility with other substances. Tests have to be performed by the customer who also bears the risk in this respect. Nothing herein shall be construed as a recommendation to use our products in conflict with third parties' rights.

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