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HEDP Low Arsenic
 HEDP Low Arsenic |
Product Description
Chemical name: 1-Hydroxyethylidene-1, 1-Diphosphonic Acid
Abbreviation: HEDP LAs
Molecular Formula: C2H8O7P2
Molecular Weight: 206
CAS Number: 2809-21-4
Application Notes: Noted for its excellent CaCO3 scale inhibition and chlorine stability.
Recommended Uses: Cooling water treatment, boiler treatment, I & I cleaners, swimming pool stain prevention, metal ion control.
Typical Properties:
Appearance: Clear colourless to pale tan liquid, free from foreign matter.
Odour
Slight to none: Assay (%w/w HEDP): 59.5 - 61.0
pH at 20° C (1% w/v): 2.0 max
pH at 20° C (1% v/v): 2.5 max
Sequestrant value (CaCO3) mg/g: 400 min
Iron content (Fe ppm): 30.0 max
Phosphorous acid as H3PO33+ phosphoric acid as H3PO44+ (%w/w): 4.0 max
Orthophosphate as PO4 (%w/w): 0.5 max
Viscosity at 25° C (mm2/sec): 35.0 - 41.0
Specific Gravity at 20/20° C: 1.440 - 1.455
Chloride as Cl (%w/w): 1.0 max
Colour (APHA): 30 max
Arsenic content (As ppm): 1.0 max
| Origin: | China |
|---|---|
| Company: | Henan Qingshuiyuan Technology Co., Ltd. |
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