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Sulfurous Acid

    • Product Name Sulfurous Acid
    • Alias Dihydroxidooxosulfane
    • Einecs 231-973-1
    • Mininmum Order 1 g
    • Factory Site Tengfei Creation Center,55 Jiangjun Avenue, Jiangning District,Nanjing
    • Price Inquiry admin@sinochem-nanjing.com
    • Manufacturer Sinochem Nanjing Corporation
    • CONTACT NOW
    Specifications

    HS Code

    421000

    Chemical Name Sulfurous Acid
    Chemical Formula H2SO3
    Molar Mass 82.07 g/mol
    Appearance Colorless solution (exists only in solution)
    Odor Pungent, sulfurous
    Solubility In Water Highly soluble
    Acid Strength Weak acid
    Cas Number 7782-99-2

    As an accredited Sulfurous Acid factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing Sulfurous Acid is packaged in a 500 mL amber glass bottle with a secure, chemical-resistant cap and clear hazard labeling.
    Shipping Sulfurous acid is shipped as a solution since it cannot be isolated in pure form. Transport must occur in corrosion-resistant, tightly sealed containers, preferably made of materials like glass or certain plastics, and stored in a cool, ventilated area. Proper labeling and compliance with hazardous material regulations are essential during shipping.
    Storage Sulfurous acid should be stored in tightly sealed, corrosion-resistant containers, away from heat, sunlight, and incompatible substances such as oxidizers and alkalis. Store in a cool, well-ventilated area to minimize decomposition and release of sulfur dioxide gas. Care should be taken to prevent exposure to moisture and to regularly check containers for signs of corrosion or leaks.
    Application of Sulfurous Acid

    Purity 98%: Sulfurous Acid Purity 98% is used in industrial water treatment, where it ensures effective dechlorination and minimizes residual chlorine levels.

    Concentration 6%: Sulfurous Acid Concentration 6% is used in pulp and paper bleaching processes, where it enhances lignin removal and improves pulp brightness.

    Stability Temperature 25°C: Sulfurous Acid Stability Temperature 25°C is used in food preservation systems, where it maintains antioxidant properties and delays spoilage.

    Molecular Weight 82.07 g/mol: Sulfurous Acid Molecular Weight 82.07 g/mol is used in laboratory chemical synthesis, where it provides predictable reactivity for controlled experiments.

    Viscosity Grade Low: Sulfurous Acid Viscosity Grade Low is used in pharmaceutical manufacturing, where it allows easy mixing and uniform formulation of medicinal products.

    Dilution Ratio 1:10: Sulfurous Acid Dilution Ratio 1:10 is used in cleaning applications for breweries, where it efficiently sanitizes equipment without residue formation.

    Reactivity Grade High: Sulfurous Acid Reactivity Grade High is used in metal finishing operations, where it accelerates oxide removal and creates cleaner surfaces.

    Solubility in Water Complete: Sulfurous Acid Solubility in Water Complete is used in environmental remediation, where it guarantees homogenous dispersion for contaminant neutralization.

    pH Level 1.5: Sulfurous Acid pH Level 1.5 is used in electronics manufacturing, where it enables precise etching and reduces risk of over-etching on wafers.

    Shelf Life 6 Months: Sulfurous Acid Shelf Life 6 Months is used in textile processing, where it maintains its reducing power and ensures consistent fabric treatment quality.

    Free Quote

    Competitive Sulfurous Acid prices that fit your budget—flexible terms and customized quotes for every order.

    For samples, pricing, or more information, please call us at +8615371019725 or mail to admin@sinochem-nanjing.com.

    We will respond to you as soon as possible.

    Tel: +8615371019725

    Email: admin@sinochem-nanjing.com

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