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[N-(2-hydroxyethyl) ethlenediamine-1,1,2-tri (methylene phosphonic acid) (HEDTMP)
Category:Organic phosphine scale and corrosion inhibitors chelating agents
- Product Description
-
Alias: Hydroxyethylethylenediamine Trimethylene Phosphonic Acid
CAS No.: 186614-90-4
Molecular Formula: C7H21O10N2P3
Relative Molecular Mass: 386
Structural Formula:Performance and Applications
Hydroxyethylethylenediamine trimethylene phosphonic acid is a multi-purpose scale inhibitor, strong chelating agent and excellent calcium carbonate and barium sulfate scale inhibitor. The product is easily soluble in water, non-toxic, has excellent tolerance to calcium and iron, and is resistant to high temperature. In the oilfield field, it is usually used as a scale and corrosion inhibitor to prevent scaling, precipitation and adhesion in production pipelines, completion systems and processing facilities.
Technical Specifications
Item
Index
Appearance
Light yellow transparent liquid
Active Component %
≥35.0
Chloride (as Cl-) %
≤6.0
Iron (as Fe2+) Content mg/L
≤20
Density (20℃) g/cm3
≥1.25
pH Value (10g/L Aqueous Solution)
≤2.0
Usage Method
This product is often formulated with other organophosphonic acids, polycarboxylic acids or their salts into organic water treatment agents for circulating cooling water systems under various water quality conditions. The optimal dosage is 1~20mg/L; when used as a corrosion inhibitor, the dosage is 20~60mg/L.
Packaging and Storage
The liquid product is packed in plastic drums, Standard capacities: 25kg, 250kg, 1250kg (IBC tank).Note: Packaging weight can be adjusted according to customer requirements. Store in a cool and ventilated indoor place, keep away from moisture and direct sunlight. The shelf life is twelve months.
Safety Protection
HEDTMP is acidic. Pay attention to labor protection during operation. Avoid contact with skin, eyes, etc. In case of contact, rinse immediately with plenty of clean water.






