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Sodium thiosulfate

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8 articles

Water & EnvironmentalSep 25, 2026 16 min

The Gas Mask Made of Photo Fixer: How Sodium Thiosulfate Met Chlorine in 1915

The Hypo helmet was the first gas mask issued in bulk to British and Canadian troops in the First World War. It was a flannel hood soaked in a solution of sodium...

Water & EnvironmentalFeb 6, 2026 16 min

Cooling Tower Water Treatment: The Plant Engineer's Complete Chemical Guide

Cooling tower water treatment is the process of using industrial chemicals to control mineral scale, corrosion, and microbiological fouling in cooling water systems. Key chemicals include Sulfuric Acid 93% (CAS 7664-93-9, boiling...

Water & EnvironmentalAug 26, 2025 22 min

An Engineer's Guide to Sodium Bisulfite for Dechlorination

Residual chlorine from pre-oxidation is a silent killer of expensive ion exchange resins, causing premature failure and crippling treatment efficiency. For engineers and operators of arsenic removal and other high-purity water systems,...

Water & EnvironmentalJul 7, 2025 15 min

Ferric Chloride vs. Alum: The 2025 Coagulant Showdown for Your Plant

Ferric chloride is an iron-based coagulant (CAS 7705-08-0) supplied as a dark brown, fuming, highly water-soluble liquid with a molecular weight of 162.20 and a boiling point of 280°C (536°F). Alum refers...

Water & EnvironmentalMay 30, 2025 16 min

Ultimate Guide to Water Treatment Chemicals: Industrial, Municipal & Pool Care

Water treatment chemicals are substances used in industrial, municipal, and pool systems to manage pH, clarify water, and control biological contaminants. Key chemicals include Aluminum Sulfate 50% (CAS 10043-01-3, 342.2 g/mol, boiling...

Safety & HandlingFeb 6, 2024 15 min

Taming the Tides: How Sodium Bisulfite Revolutionizes Ballast Water Treatment

Sodium bisulfite is a clear, colorless to pale yellow liquid chemical used for neutralizing residual oxidants in maritime and industrial water systems. Its chemical formula is HNaO₃S, with a molecular weight of...

Water & EnvironmentalDec 11, 2023 16 min

From Cloudy to Clear: The Essential Role of Aluminum Sulfate in Coagulation & Flocculation

Aluminum sulfate is a highly water-soluble white crystalline powder used as a coagulant and flocculant in municipal and industrial water treatment. Its chemical identifiers are CAS numbers 10043-01-3 and 7784-31-8, with molecular...

Water & EnvironmentalFeb 5, 2023 15 min

Using Sodium Hypochlorite for Water Purification: A Detailed Guide

Sodium hypochlorite is a highly water-soluble compound with the formula NaOCl and CAS number 7681-52-9, used in water purification for municipal treatment plants, industrial cooling towers, and aquatic facilities. It is a...

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8 articles

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