Water Treatment Chemcals HEDP
|FOB Price:||US $830-860 / Ton|
|Min. Order:||24 Tons|
|Min. Order||FOB Price|
|24 Tons||US $830-860/ Ton|
|Payment Terms:||L/C, T/T|
- Model NO.: CAS No. 2809-21-4
- Certification: REACH, SGS
- Color: Clear, Colorless to Pale Yellow Aqueous Solution
- Type: Industrial Circulating Water Treatment Agent
- Terms and Paymet: T/T, L/C, D/P, D/a
- Trademark: Zaozhuang Jialu Chemical Co., Ltd
- Origin: China
- Acid-Base Property: Acidic Surface Disposal Agent
- Environmental Protection: Yes
- Appearance: Liquid
- Class: 8
- Packing: as Per Customers′requirement
- Transport Package: 200L Plastic Drum, IBC(1000L)
- HS Code: 2931901990
(HEDP) CAS No. 2809-21-4
HEDP is an organophosphoric acid corrosion inhibitor. It can chelate with Fe, Cu, and Zn ions to form stable chelating compounds. It can dissolve the oxidized materials on these metals' surfaces. It shows excellent scale and corrosion inhibition effects under temperature 250ºC.
HEDP has good chemical stability under high pH value, hard to be hydrolyzed, and hard to be decomposed under ordinary light and heat conditions. Its acid/alkali and chlorine oxidation tolerance are better than that of other organophosphoric acids (salt).
HEDP can react with metal ions in water system to form hexa-element chelating complex, with calcium ion in particular. Therefore, it has good antiscale and visible threshold effects. When built together with other water treatment chemicals, it shows good synergistic effects.
Solid HEDP is crystal powder, suitable for usage in winter and freezing districts. Due to its high purity, it can be used as cleaning agent in electronic fields and as additives in daily chemicals.
|Appearance||Clear, Colorless to pale yellow aqueous solution||White crystal powder|
|Active content (HEDP)%||60.0 min||90.0 min|
|Active content (HEDP·H2O)%||-||98.0 min|
|Phosphorous acid (as PO33-)%||1.0 max||0.8 max|
|Phosphoric acid (as PO43- )%||0.6 max||0.5 max|
|Chloride (as Cl-)%||0.01 max||0.01 max|
|pH (1% water solution)||2.0 max||2.0 max|
|Density (20ºC)g/cm3||1.40 min||-|
|Fe, mg/L||10.0 max||5.0 max|
|Colour APHA (Hazen)||10.0 max||-|
|Ca sequestration (mg CaCO3/g)||500.0 min|
Package and Storage:
HEDP liquid: Normally In 250kg net Plastic Drum, IBC drum can also be used as required HEDP solid: 25kg inner liner polyethylene (PE) bag, outer plastic woven bag, or confirmed by clients.
Storage for ten months in room shady and dry place.
Acidity, Avoid contact with eye and skin, once contacted, flush with water.
Zaozhuang Jialu Chemical Co.,Ltd