CAS: 7216-95-7
Molecular Formula: C₁₄H₁₈K₅N₃O₁₀
Molecular Weight：583.8 g/mol
Synonyms: N,N-bis[2-[bis(Carboxymethyl)amino]ethyl]glycine pentapotassium salt; DTPA 5K; Glycine, N,N-bis[2-[ bis(carboxymethyl)amino]ethyl]-, potassium salt (1:5); Pentapotassiumdiethylenetriaminepentaacetate
DTPA-5K CAS 7216-95-7
DTPA-5K (Glycine, N,N-bis2-bis(carboxymethyl)aminoethyl-, pentapotassium salt) is a strongly basic and highly soluble amino poly-carboxylic acid chelating agent. In industry, it is mainly in the form of a 40%–45% aqueous solution.
DTPA-5K is an alkaline highly soluble chelating agent. It is used for removing sulfate scale in oil fields, as well as in industrial water treatment, electroplating, and general metal control in the cosmetics industry.
Specification
| CAS | 7216-95-7 |
| Form | Liquid |
| Density | 1.25–1.35 g/mL (at 25℃) |
| pH | 11–13 (highly alkaline) |
Application
Oilfield Sulfate Scale Removal (Core)
DTPA-5K is specifically designed to dissolve refractory sulfate scales such as barite (BaSO₄), celestite (SrSO₄), and gypsum (CaSO₄).
It is used for descaling oil wells, pipelines, and formations, and is stable in high alkaline environments, outperforming EDTA and DTPA-5Na.
DTPA-5K Industrial Water Treatment
Boiler and cooling water system control scale, scale removal, metal ions, to prevent the Ca/Mg/Fe precipitate.
Hydrogen peroxide bleaching stabilizer, inhibiting the catalytic decomposition of metal ions.
DTPA-5K Electroplating and Metal Processing
It is a metal ion complexing agent for electroplating solutions, enhancing the uniformity and brightness of the coating.
Metal cleaning and surface treatment chelation for removing impurities.
DTPA-5K Cosmetics and Papermaking
Detergents, cleaning agents, soft water, and stain removal enhancement.
Paper bleaching stabilizer and resin control agent. Other
DTPA-5K is used for controlling metal impurities in photographic, printing inks, rubber, synthetic paper, etc.
Packaging
25kg/drum.
