Skip to main content
    Back to Products

    Sodium Thiosulfate (Laboratory Grade)

    Na2S2O3
    CAS7772-98-7FormulaNa2S2O3Same-day Muscat · next-day Sohar, Salalah, DuqmSDS + CoA with every batch
    Request a Quote

    Product Overview

    High-purity sodium thiosulfate for titrations and analytical chemistry.

    Detailed Description

    Laboratory Grade Sodium Thiosulfate supplier in Oman - Global Chemicals LLC provides high-purity sodium thiosulfate for analytical laboratories and quality control facilities in Muscat, Sohar, Duqm, Salalah. Our ACS-grade Na2S2O3 pentahydrate is essential for iodometric titrations, chlorine neutralization, and analytical chemistry. The standard reducing agent is used for determining iodine, bromine, and oxidizing agents. Available as pentahydrate crystals and standardized solutions (0.1N, 0.01N). Widely used in water testing labs, pharmaceutical QC, oilfield laboratories, and university chemistry departments across Oman. Essential for determining dissolved oxygen (Winkler method) and chlorine residuals. Laboratory-grade sodium thiosulphate pentahydrate (Na₂S₂O₃·5H₂O, ACS reagent grade) is a critical analytical chemical in Oman's water quality and food safety testing laboratories. As a primary standard, sodium thiosulphate is used for iodometric titration of oxidising agents — including dissolved oxygen determination (Winkler method), chlorine residual testing, and oxidant concentration analysis. In Oman's water treatment industry, sodium thiosulphate is also used to quench chlorine in water samples before microbiological testing (neutralising residual chlorine that would otherwise inhibit bacterial growth and give false-negative coliform results). Global Chemicals LLC supplies sodium thiosulphate ACS grade in 500g, 1kg, and 5kg containers with CoA and SDS.

    Also Known As:

    Sodium thiosulphate, Hypo, Na2S2O3, Sodium thiosulfate pentahydrate

    CAS Number:7772-98-7

    Applications & Uses

    Iodometric titrations
    Chlorine and bleach analysis
    Dissolved oxygen determination (Winkler)
    Standardizing iodine solutions
    Dechlorination of water samples
    Silver recovery in photography
    Volumetric analysis
    Reducing agent in chemical reactions

    Technical Specifications

    Form
    Pentahydrate (Na2S2O3·5H2O)
    Purity
    99.5% minimum (ACS grade)
    Appearance
    Colorless crystals
    Assay
    Meets ACS specifications
    Standardized solutions
    0.1N, 0.01N available
    Available
    500g, 1kg, 5kg
    Store in tightly closed container
    ISO 9001 Certified Fast Delivery Oman & GCC Export

    Request a Quote

    Get pricing, availability, and technical specifications for Sodium Thiosulfate (Laboratory Grade). Our team responds within 24 hours.

    Related Products

    High-purity potassium permanganate for oxidation and titrations.

    View Details

    High-purity silver nitrate for titrations, silver staining, and analytical chemistry.

    View Details

    High-purity phenolphthalein indicator for acid-base titrations.

    View Details

    High-purity methyl orange indicator for acid-base titrations.

    View Details

    High-purity bromothymol blue indicator for neutral pH range titrations.

    View Details

    High-purity bacteriological agar for microbiology culture media.

    View Details