Water Treatment Chemicals

Introduction to Didecyl Dimethyl Ammonium Chloride (DDAC) Didecyl dimethyl ammonium chloride (DDAC, CAS 7173-51-5) is a cationic quaternary ammonium compound (a “quat”) and one of the workhorse biocides of industry. Supplied as an 80% aqueous solution, it is a broad-spectrum antimicrobial and a cationic surfactant, used in disinfectants and sanitisers, water treatment, wood preservation, oilfield

Polyaspartic Acid: A Biodegradable Chelant from Aspartic Acid Polyaspartic acid (PASP) is a bio-based, water-soluble polymer built from repeating aspartic acid units. Because it binds metal ions and inhibits scale, it is increasingly used as a biodegradable alternative to non-degradable chelators and scale inhibitors such as EDTA and polyacrylates. Its starting material is aspartic acid

Phosphorus Removal: Why Ferric Sulphate Is Widely Used Eutrophication – the over-enrichment of water with nutrients – is driven largely by phosphorus, and tightening discharge limits have made chemical phosphorus removal a standard step in municipal and industrial wastewater treatment. Ferric sulphate (Fe2(SO4)3, CAS 10028-22-5) is one of the most effective and widely used reagents

Ferric vs Ferrous Sulphate: Why It Matters in Water Treatment Iron salts are among the most widely used coagulants in water and wastewater treatment, and buyers frequently have to choose between ferric sulphate (Fe2(SO4)3, CAS 10028-22-5) and ferrous sulphate (FeSO4). The two are related but behave differently in the plant, and the choice affects dosing,

What Buyers Need to Know Before Sourcing 5,5-Dimethylhydantoin 5,5-Dimethylhydantoin (CAS 77-71-4, DMH) is a white crystalline fine chemical bought primarily as an intermediate for downstream derivatives. That shapes what buyers should look for: consistent assay and colour, a tight melting range, low moisture, and clean documentation. This guide sets out the specifications, the quality checks

Why Halogenated Hydantoins Matter 5,5-Dimethylhydantoin (CAS 77-71-4) is often described as a disinfectant, but that description is imprecise. In the water-treatment, pool and industrial-sanitising markets, the antimicrobial and bleaching activity comes from halogenated derivatives of DMH – the 1,3-dihalo-5,5-dimethylhydantoins. Understanding this relationship is essential for anyone buying, formulating or specifying these products, because it explains

Aluminum sulfate (alum, CAS 10043-01-3) is a commodity chemical, but “commodity” does not mean “no quality differences” — the grade, the aluminum oxide content, the iron level and the COA all matter. This purchasing guide covers the specification sheet, the grades, packaging and the supplier checklist for aluminum sulfate. 1. Reading the Specification Parameter Typical

Aluminum sulfate (alum, CAS 10043-01-3) is best known for water treatment, but it is also a workhorse in papermaking, dyeing, construction and many other industries. This guide covers alum’s industrial uses beyond water treatment and what buyers should consider for each application. 1. Papermaking Alum is a traditional papermaking chemical, used for: Rosin sizing: alum

Aluminum sulfate (alum, CAS 10043-01-3) is one of the oldest and most widely used coagulants in water treatment. From drinking water clarification to industrial wastewater and papermaking, alum remains a cost-effective workhorse — despite being centuries old. This guide covers how aluminum sulfate works in water treatment, the dosing practice, and its role alongside modern

Morpholine (CAS 110-91-8) is a clear, hygroscopic liquid amine with real handling considerations — it is corrosive, flammable and regulated in some regions. Buying it well means checking the right specifications and following the right safety practices. This purchasing guide covers the specification sheet, the COA, packaging, storage and the supplier checklist for morpholine. 1.