Business Type: Manufacturer/Factory,Trading Company
Binzhou, Shandong, China
HEDP(1-Hydroxy Ethylidene-1,1-Diphosphonic Acid)
The specification of HEDP as follow:
- Appearance : Clear, Colorless to pale yellow aqueous solution ;White crystal powder
-Solubility: Readily soluble in water
HEDP is used as scale and corrosion inhibition in circulating cool water system, oil field and low-pressure boilers in fields such as electric power, chemical industry, metallurgy, fertilizer, etc..
In light woven industry, HEDP is used as detergent for metal and nonmetal.
In dyeing industry,HEDP is used as peroxide stabilizer and dye-fixing agent;
In non-cyanide electroplating,HEDP is used as chelating agent. The dosage of 1-10mg/L is preferred as scale inhibitor, 10-50mg/L as corrosion inhibitor, and 1000-2000mg/L as detergent.
Usually,HEDP is used together with polycarboxylic acid.
Package and storage :
HEDP liquid: 200L plastic drum,IBC(1000L),customers' requirement.
HEDP solid: 25kg/bag,customers' requirement.
Storage for ten months in room shady and dry place.
|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|
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