Pentetic acid or diethylenetriaminepentaacetic acid (DTPA) is an aminopolycarboxylic acid consisting of a diethylenetriamine backbone with five carboxymethyl groups. The molecule can be viewed as an expanded version of EDTA and is used similarly. It is a white solid with limited solubility in water.

Carboxylic acid pK A (DTPA) = 1.68, 2.1, 2.6, 4.15, 8.2, 9.9. This report presents a summary of the work performed in the area of thermodynamics and kinetics of advanced separations systems...

2025年1月27日 · Diethylenetriaminepentaacetic acid (CAS 67-43-6) information, including chemical properties, structure, melting point, boiling point, density, formula, molecular weight, uses, prices, suppliers, SDS and more, available at Chemicalbook.

Pentetic acid, also known as diethylenetriaminepentaacetic acid (DTPA), is a synthetic polyamino carboxylic acid with eight coordinate bond forming sites that can sequester metal ions and form highly stable DTPA-metal ion complexes.

ChemicalBook 致力于为化学行业用户提供DTPA的性质、化学式、分子式、比重、密度,同时也包括DTPA的沸点、熔点、MSDS、用途、作用、毒性、价格、生产厂家、用途、上游原料、下游产品等信息。

二乙烯三胺五醋酸 (DTPA)又叫二乙烯三胺五乙酸，是一种优良的氨羧络合剂，螯合性强，它与大多数阳离子形成的整合物比乙二胺四乙酸的相应螯合物要稳定。 作为高效螯合剂，二乙烯三胺五醋酸可应用于腈纶生产中颜色抑制剂、造纸行业、软水剂、纺织助剂、螯合滴定剂、彩色照相和食品工业中等，其同时在医疗、稀土元素分离及农业生产中也有着广泛的应用。 本品为白色结晶或结晶状粉末。 熔点230 ℃（分解），溶于热水和碱溶液，微溶于冷水，不溶于醇醚等有机溶剂。 …

2014年6月23日 · A surprisingly high value of the last DOTA dissociation constant (pKa =12.9) was determined by potentiometry and confirmed by using NMR spectroscopy. Stability constants of scandium(III) complexes (log KScL 27.43 and 30.79 for DTPA and DOTA, respectively) were determined from potentiometric and (45)Sc NMR spectroscopic data.

pH值：在酸性条件下（pH 5），DTPA具有较高的配位能力。 用途： 土壤改良剂：DTPA用作污染土壤的重金属螯合剂，能与土壤中的铁、锰、铜等重金属形成螯合络合物，减少其毒性。

二乙烯三胺五醋酸 ≥99% (titration); CAS Number: 67-43-6; EC Number: 200-652-8; Synonyms: DETAPAC,DTPA,二乙三胺五乙酸,二乙三胺五醋酸,二乙烯三胺五醋酸,二亚乙基三胺五乙酸; Linear Formula: [(HOOCCH2)2NCH2CH2]2NCH2COOH at Sigma-Aldrich

What are the pKa values for Product D6518, Diethylenetriaminepentaacetic acid? The pKa values for the carboxyl groups as reported in the reference book "Data for Biochemical Research, 3rd ed., page 402, Oxford University Press, New York (1986)." are 1.8, 2.6, 4.4, 8.8, and 10.4.