How to Buy Polyaluminium Chloride (PAC): Specs, Al2O3 and Basicity PAC (polyaluminium chloride, CAS 1327-41-9) is not a single specification – two suppliers can quote “PAC” at very different quality and price. To buy it well you need to fix three things: the Al2O3 content, the basicity and the grade (drinking water or industrial). This
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Polyaluminium Chloride (PAC) in Water Treatment in Africa Africa’s water sector is expanding fast – municipal supply, industrial wastewater, mine water and reuse. Polyaluminium chloride (PAC, CAS 1327-41-9) suits that environment well: it works across a wide pH range, is effective in cold water, forms flocs quickly and needs less pH correction than alum, which
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PAC vs Aluminium Sulfate vs Ferric Sulphate: Choosing a Coagulant Coagulant choice drives the whole treatment train: dose, pH correction, sludge volume and the clarity you can achieve. The three workhorses are polyaluminium chloride (PAC), aluminium sulfate (alum) and ferric sulphate. This article compares them on the things that matter in practice – pH window,
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Mining Reagents: Flotation Collectors, Depressants and Gold-Plant Chemicals Mineral processing uses a suite of reagents, each with a specific job in the circuit. This page is the overview of the mining reagents we supply – flotation collectors, depressants, frothers and modifiers, plus the chemicals used in gold leaching and cyanide destruction and in tailings dewatering.
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Water Treatment Chemicals: How the Pieces Fit Together Water and wastewater treatment is a sequence of chemical steps, and buying it product-by-product leads to mismatched doses, incompatible grades and missed savings. This page is the overview of the water-treatment chemicals we supply, why each is used, and how they work together – from coagulation and
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Sodium Metabisulfite Export to Africa: Grades, Packaging, Ports and Documents Buying sodium metabisulfite (Na2S2O5, CAS 7681-57-4) for an African mine, utility or food processor is mostly a logistics and paperwork exercise once the specification is fixed. This article covers the grades and specifications you should confirm, the packaging and container options, the ports and trade
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Sodium Metabisulfite for Water Treatment in Africa Water treatment is one of the biggest uses of sodium metabisulfite (Na2S2O5, CAS 7681-57-4), and Africa is one of the regions where the demand is growing fastest. Municipal utilities, desalination and reverse-osmosis plants, mines and food processors all use it to remove chlorine and control oxidation. This article
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Sodium Metabisulfite in Gold Mining and Flotation Sodium metabisulfite (Na2S2O5, CAS 7681-57-4) is a workhorse reagent in mineral processing. In gold plants it destroys the cyanide left after leaching; in flotation circuits it depresses unwanted sulphide minerals and controls pulp chemistry. This article explains where it is used, how much is typically needed, and what
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Food-Grade Phosphoric Acid (E338): Uses and Selection Food-grade phosphoric acid is the same molecule as the industrial acid – H3PO4, CAS 7664-38-2 – but it is made and controlled so that arsenic, fluoride and heavy metals stay inside food limits. In the EU it is known as the food additive E338, and it is one
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Phosphoric Acid in Metal Phosphating and Surface Treatment Phosphating is one of the largest industrial uses of phosphoric acid. In the process, phosphoric acid reacts with the metal surface (and with dissolved metal ions in the bath) to form an adherent, crystalline phosphate conversion coating. That coating improves paint adhesion, slows corrosion and provides a
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