DIETHYLENE TRIAMINE PENTAACETIC ACID SODIUM SALT 40% AQ. SOLUTION For Synthesis | 3326B | Loba Chemie

Description

Specifications Table

Product Name – DIETHYLENE TRIAMINE PENTAACETIC ACID SODIUM SALT 40% AQ. SOLUTION For Synthesis Quantity/Pack Size – 500 ml Form – Liquid (Aqueous Solution) Grade – For Synthesis Application – Chelating agent, metal ion sequestration

Product Overview

DIETHYLENE TRIAMINE PENTAACETIC ACID (DTPA) sodium salt 40% aqueous solution is a high-purity chelating agent designed for synthesis applications. This water-soluble compound forms stable complexes with a wide range of metal ions, making it highly effective in preventing metal interference in chemical reactions. The 40% concentration ensures optimal solubility and reactivity without requiring additional dilution for most laboratory protocols. Its molecular structure contains five acetate groups and three amine nitrogens, providing multiple coordination sites for metal binding. The synthesis grade purity guarantees minimal impurities, ensuring reliable and reproducible results in analytical and preparative chemistry. This solution is particularly valued for its ability to sequester transition metals and alkaline earth metals, which can otherwise catalyze unwanted side reactions or degrade sensitive reagents. The aqueous formulation eliminates the need for weighing solid DTPA, offering convenience and accuracy in liquid handling. Stable under normal laboratory conditions, this solution maintains its chelating efficiency over extended storage periods when properly sealed.

FAQs

1. What is the shelf life of DTPA sodium salt 40% solution when stored properly?

The solution remains stable for 24 months from the date of manufacture when stored in a tightly sealed container at room temperature, protected from light and moisture. Always check for any precipitation or color change before use as indicators of potential degradation.

2. Can this DTPA solution be used for complexometric titrations?

While DTPA is a strong chelating agent, its use in complexometric titrations is less common compared to EDTA due to its higher affinity for certain metals. The 40% concentration may require dilution for precise titration applications, and standardization against a primary metal standard is recommended for accurate results.

3. How does DTPA sodium salt compare to EDTA in terms of metal binding?

DTPA generally forms more stable complexes with larger metal ions and at higher pH ranges compared to EDTA. It exhibits particularly strong binding with iron(III), copper(II), and rare earth metals. The choice between DTPA and EDTA depends on the specific metal ions present and the pH conditions of your application.

4. What precautions should be taken when handling this 40% DTPA solution?

Always wear appropriate personal protective equipment including nitrile gloves, safety goggles, and a lab coat. The solution may cause skin and eye irritation upon direct contact. Work in a well-ventilated area or under a fume hood, especially when handling larger quantities, as the amine odor can be noticeable.

5. Is this DTPA solution compatible with common organic solvents?

The aqueous solution is primarily designed for water-based systems. While DTPA itself has limited solubility in most organic solvents, the sodium salt form in this solution may show partial miscibility with polar organic solvents like methanol or ethanol. For organic-phase applications, consider using solid DTPA or preparing solutions in appropriate solvent mixtures.