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SHMP is used as a sequestrant and has applications within a wide variety of industries, including as a food additive in which it is used under the E number E452i. Sodium carbonate is sometimes added to SHMP to raise the pH to 8.0–8.6, which produces a number of SHMP products used for water softening and detergents.
Learn how sodium hexametaphosphate can prevent scale, corrosion and precipitation in various water systems. Find out its functions, properties and applications in different industries and get a free quote.
The use of 2-4 ppm of a polyphosphate such as sodium hexametaphosphate (SHMP), sodium tripolyphosphate (STP) or tetrasodium pyrophosphate (TSPP) before chlorination results in the formation of colorless phosphate complexes of the heavy metal and elimination of the formation of insoluble compounds.
Hardness ions are metal ions commonly found in water and include calcium and magnesium. Sequestration is dependent upon pH; a given sequestrant works best in a particular pH range. Sodium hexametaphosphate (SHMP) performs very well at neutral pH ranges, while pyrophosphates and polyphosphates work best under alkaline conditions. B. Threshold ...
The ability of SEC to detect lead-polyphosphate complexes was confirmed by separating deionized water with sodium bicarbonate (60 mg L −1), lead nitrate (65 μg Pb L −1), and sodium hexametaphosphate (2 mg P L −1), a strong complexing agent for lead.
1 paź 2020 · This study investigated the efficiency of sodium hexametaphosphate (SHMP) as scale inhibitor for calcium carbonate, as a function of pH and SHMP concentration, under drastic conditions of temperature, scaling ions concentration and pressure.
13 cze 2024 · How SHMP Works its Magic in Water Treatment. SHMP’s effectiveness in water treatment stems from its multi-faceted action: 1. Scale Inhibition: Hard water, rich in calcium and magnesium ions, can lead to scale formation in pipes, boilers, and other equipment.
