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1-Hydroxyethylidene-1,1-diphosphonic acid (HEDPA) is a deflocculant and sequestrant. It is used as a scale and corrosion inhibitor in cooling water systems, low pressure boiler water treatments. It has wide applications in industrial and institutional cleaners and swimming pool stain prevention.

250kg drum

Properties Typical Unit
Appearance Clear, colourless to pale yellow solution
Active Acid Content 58.0 – 62.0 Max. %
pH (1% solution @ 25°C) 2.0
Iron 35 max ppm
Phosphorus Acid 4.0 max %
Chlorides (Cl) 300 max ppm
Specific Gravity @20°C 1.42 – 1.47 g/mL

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