White crystalline powder of Sodium Thiosulphate in a 25 kg white polypropylene sack labeled for industrial use

Finstar

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Sodium Thiosulphate 99%

Sodium Thiosulphate 99% is a versatile chemical used extensively in photographic fixing, water purification, and chemical processing. Supplied in 25 kg bags, it supports various industrial operations in Kenya.

Technical Specifications

CAS Number7772-98-7

Chemical FormulaNa2S2O3

AppearanceWhite crystalline powder

Packaging25 kg polypropylene bags

StorageCool, dry, ventilated chemical storage

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Safety InformationWear protective gloves and eye protection Store away from moisture in sealed containers Avoid inhalation of dust; use local exhaust ventilation during handling — use correct personal protective equipment (PPE) and follow site safety procedures before handling.

Full Product Details

Sodium Thiosulphate 99% — Specifications, Uses & Availability

Product Overview

Product NameSodium Thiosulphate 99%

CategoryWater treatment

AvailabilityIn Stock — Ready for Dispatch

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About Sodium Thiosulphate 99%

Sodium Thiosulphate 99% is primarily employed as a photographic fixer to remove unexposed silver halide from film and paper, ensuring image stability. In water treatment, it neutralizes residual chlorine, making water safe for use. It is also utilized in chemical manufacturing and gold leaching processes. For effective handling, it is recommended to store the chemical in cool, dry, and ventilated areas to prevent moisture absorption and degradation. Finstar Chemicals supplies Sodium Thiosulphate 99% in 25 kg bags suitable for direct industrial use or further formulation, catering to Kenya and neighboring markets. Procuring this grade ensures consistency in reactivity and impurity limits critical for sensitive applications like photography and water purification.

External references: PubChem · Wikipedia

Applications

Photographic fixingRemoves unreacted silver halide crystals from exposed film and paper, stabilizing images.

Water treatmentNeutralizes residual chlorine and chloramine to prevent harmful reactions and protect aquatic life.

Gold leaching processUsed as a lixiviant to reduce gold-thiosulfate complexes enabling gold recovery in mining.

Chemical manufacturingActs as a reducing agent and neutralizer in various chemical synthesis pathways.

Disinfection neutralizerDeactivates disinfectant residues in industrial effluents to meet environmental release standards.

Benefits

Consistent reaction controlHigh assay reduces variability in photographic fixing, ensuring uniform image quality and faster processing.

Chlorine scavenging efficiencyEffectively neutralizes chlorine residuals in water treatment plants, protecting downstream equipment and living organisms.

Reduced chemical wasteHigh purity minimizes by-product formation in gold leaching, improving yield and reducing environmental load.

Safe handling in humid climatesStable crystalline form with low hygroscopicity reduces caking and maintains flowability during storage.

Features

Guaranteed 99% purity gradeEnsures performance consistency in sensitive industrial applications requiring precise chemical reactions.

Packed in 25 kg robust polypropylene bagsProtects contents from moisture ingress and facilitates manual handling and storage.

Batch-specific Certificate of AnalysisAvailable on request, verifying assay and compliance with industrial standards for procurement confidence.

Industries Served

Photography and ImagingUsed in film processing labs for developing and fixing photographic materials.

Water TreatmentEmployed in municipal and industrial water to neutralize disinfectants before discharge or reuse.

Mining and MetallurgyUtilized in gold extraction plants for environmentally safer gold recovery methods.

Chemical ManufacturingIncorporated in synthesis routes requiring reducing agents or neutralizers.

Environmental ServicesUsed in effluent treatment processes to neutralize harmful residual chemicals before release.

Sodium Thiosulphate 99% is supplied by Finstar to industrial buyers across Kenya, Uganda, Tanzania, and Rwanda. Read our chemical safety guides for handling best practices.

Supply in Kenya, Uganda, Tanzania & Rwanda

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MSDS & Certificate of Analysis available on request
Nairobi warehouse dispatch with East Africa-wide delivery
Technical sales team for formulation & dosage support

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Safety & Handling

Wear protective gloves and eye protection Store away from moisture in sealed containers Avoid inhalation of dust; use local exhaust ventilation during handling

Always consult the product Safety Data Sheet (SDS) before handling. Contact Finstar for GHS-compliant documentation.

Frequently Asked Questions

Where can I buy Sodium Thiosulphate 99% in Kenya?

Finstar Chemicals supplies Sodium Thiosulphate 99% for industrial buyers in Kenya, Uganda, Tanzania, and Rwanda. Request a quote for pricing and availability.

Is a Certificate of Analysis available?

Yes, COA and batch documentation are available upon request for qualified industrial orders.

What packaging sizes are available?

Standard packaging is 25 kg polypropylene bags suitable for industrial handling and storage.

How should Sodium Thiosulphate be stored?

Store in a cool, dry, well-ventilated area away from moisture and incompatible substances to preserve quality.

Delivery Coverage Across Kenya’s Counties

Finstar is a leading supplier of industrial chemicals across Kenya’s counties. Sodium Thiosulphate 99% is dispatched from our Nairobi Industrial Area warehouse to businesses nationwide — including Nairobi, Mombasa, Kisumu, and Nakuru counties — plus cross-border delivery to Uganda, Tanzania, and Rwanda. Towns we regularly supply include:

NairobiMombasaKisumuNakuruEldoretThikaRuiruKiambuMachakosNaivashaNyeriMeruKerichoKakamegaKitaleMalindiNanyukiAthi RiverVoiKilifi

Delivering to a different town or county? Request a quote and our logistics team will confirm delivery timelines to your location.

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