1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP) - Product
Place of Origin : Wuhan,China
Product Description
items index
Appearance Clear, Colorless to pale yellow aqueous solution White crystal powder
Active content (HEDP)% 58.0-62.0 90.0min
Phosphorous acid (as PO33-)% 1.0 max 0.8 max
Phosphoric acid (asPO43- )% 0.6 max 0.5 max
Chloride (as Cl-) ppm 100.0 max 100.0max
pH (1% solution) 2.0 max 2.0 max
Density (20.C)g/cm3 1.43-1.47
Fe,mg/L 10.0 max 5.0 max
Colour APHA (Hazen) 30.0 max
Acetic acid % 0.5 max
Ca sequestration (mg CaCO3/g) 500.0 min
Physical Specification
Other Specification : Specification:
Items Index
Appearance Clear, Colorless To Pale Yellow Aqueous Solution White Crystal Powder
Active Content (HEDP)% 58.0-62.0 90.0min
Phosphorous Acid (as PO33-)% 1.0 Max 0.8 Max
Phosphoric Acid (asPO43- )% 0.6 Max 0.5 Max
Chloride (as Cl-) Ppm 100.0 Max 100.0max
PH (1% Solution) 2.0 Max 2.0 Max
Density (20.C)g/cm3 1.43-1.47
Fe,mg/L 10.0 Max 5.0 Max
Colour APHA (Hazen) 30.0 Max
Acetic Acid % 0.5 Max
Ca Sequestration (mg CaCO3/g) 500.0 Min
Usage:
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.
