HEDP

1.Water white to pale yellow liquid 2.low arsenic aqueous solution 3.1-Hydroxyethylidene -1, 1-diphosphonic acid, (HEDP) Chemical Name: (HEDP) Scale Inhibitor Applications:    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.

Technical specifications and features
1. Abbreviation	HEDP
2. Chemical Name	1-Hydroxyethylidene -1, 1-diphosphonic acid
3. Molecular Formula	C2H8O7P2
4. CAS	2809-21-4
5. Molecular Weight	206
6. Active acid, %	58.0 - 62.0
7. pH, 1% solution @ 25 °C	2.0 max
8. Specific gravity @ 20 °C , g/cm3	1.42 - 1.47
9. Arsenic, ppm	2 max
10. Iron, as Fe, ppm	20 max
11. Phosphorous acid, %	4.0 max
12. Color APHA (Hazen)	150 max
13. Chlorides (as Cl, ppm)	100 max
14. Appearance	Water white to pale yellow liquid
15. Packing	HDPE drum: 250 kg net;  Isotank:20 ton; IBC:1250 kg.

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HEDP