HEDP

Categories	Water Treatment Chemical
Brand	NGO CALCIUM CARBIDE
Appearance	Water white to pale yellow liquid
Molecular Weight	206
Active acid, %	58.0 – 62.0
pH, 1% solution @ 25 ℃	2.0 max
Specific gravity@ 20 ℃ , g/cm3	1.42 – 1.47
Arsenic, ppm	2 max
Iron, as Fe, ppm	20 max
Phosphorous acid, %	4.0 max
Color APHA (Hazen)	150 max
Chlorides (as Cl, ppm)	100 max
Update Time	Apr 25,2024

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It is a low arsenic aqueous solution of 1-Hydroxyethylidene -1, 1-diphosphonic acid, (HEDP), and is noted for excellent CaCO3 scale inhibition and chlorine stability. (HEDP) Scale Inhibitor is widely used in industries as a sequestering agent and calcium carbonate scale inhibitor for applications in food processing, cosmetics and personal care products.

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