HEDP CAS 2809-21-4

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Model: MOS 2809-21-4
Brand Name: MOSINTER
CAS: 2809-21-4
Molecular formula: C2H8O7P2
Category:

HEDP CAS 2809-21-4

The pure product is white crystal. The industrial product is colorless to pale yellow transparent liquid. Soluble in water, soluble in methanol and ethanol. Hydroxyethylidene diphosphonic acid is a chemical raw material commonly used in industrial water treatment, household cleaning products and personal care products. It is the main material for cyanide-free electroplating. It is formulated into a cyanide-free copper electroplating solution, and the direct electroplating copper layer on sodium iron has good adhesion. The coating is smooth and the color is good. 

Appearance White crystalline powder Conform
Active content (as HEDP) ≥90.0% 90.75%
Active content (as HEDP·H2O) ≥98.0% 98.60%
phosphorous acid (as PO33-) ≤ 0.8% 0.20%
Phosphoric acid (as PO43-) ≤ 0.5% 0.10%
Chloride (as Cl–) ≤ 100ppm 19ppm
PH(1% water solution@20℃) ≤2.0 1.6
Iron (as Fe) ≤20.0ppm 5.6ppm

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