DTPA-5Na Solution

Pentasodium DTPA Chelating Agent — Available in 40% & 50% Concentrations

Chelating Agent for Modern Fertilizer Formulations

DTPA-5Na Solution (Pentasodium Diethylenetriaminepentaacetate) is a highly water-soluble liquid chelating agent designed to bind and control metal ions in aqueous formulations and industrial processes.

As the fully neutralized pentasodium salt of DTPA, DTPA-5Na provides the strong metal-binding capability of DTPA in a convenient, ready-to-use liquid form.

TerraNutrix supplies DTPA-5Na 40% Solution and DTPA-5Na 50% Solution, providing formulators with different concentration options according to their production requirements.

For fertilizer and micronutrient manufacturers, DTPA-5Na can be evaluated as a chelating raw material for the preparation of metal complexes and specialty micronutrient formulations.

It can also be used in industrial applications requiring effective control of metal ions.

DTPA-5Na Solution
WHY DTPA-5Na Solution

Key Benefits

Strong Metal Ion Control

DTPA contains multiple coordination sites capable of binding metal ions.

Ready-to-Use Liquid Form

DTPA-5Na Solution eliminates the need to first dissolve and neutralize solid DTPA Acid.

Two Concentration Options

TerraNutrix offers both: 40% Solution for standard liquid formulation requirements. and 50% Solution for customers seeking a more concentrated DTPA-5Na source.

Product Information

Test Item DTPA-5Na 40% Solution DTPA-5Na 50% Solution
DTPA-5Na Content ≥40.0% ≥50.0%
Specific Gravity (25°C) 1.25–1.35 g/mL 1.30–1.40 g/mL
pH (1% Solution) 11.0–12.5 11.0–12.5
Chelating Value ≥80 mg CaCO₃/g ≥99 mg CaCO₃/g
Appearance Yellow to Light Yellow Clear Liquid Yellow to Light Yellow Clear Liquid
* Specifications are for reference only. Please contact TerraNutrix for the latest Technical Data Sheet (TDS) and batch-specific Certificate of Analysis (COA).

DTPA-5Na Solution vs DTPA Acid

Feature DTPA-5Na Solution DTPA Acid
Chemical Form Pentasodium Salt of DTPA Free Acid Form of DTPA
Physical Form Liquid White Powder
Available Grade 40% / 50% Solution ≥99.0% Assay
Water Solubility Highly Water Soluble Lower Water Solubility; Neutralization May Be Required
pH 11.0–12.5 (1% Solution) 2.1–2.5 (10 g/L, 25°C)
Neutralization Before Use Generally Not Required May Be Required for Aqueous Formulations
Handling in Liquid Production Easy Pumping, Metering & Dosing Requires Solid Handling, Dissolution and/or Neutralization
Active Material Concentration Lower Due to Water Content High-Purity Solid
Transportation Efficiency Lower Active Content per Unit Weight Higher Active Content per Unit Weight
Typical Manufacturing Fit Liquid Formulators & Aqueous Production Systems Manufacturers Processing Their Own Chelating Systems
Typical Applications Liquid Formulations, Metal-Ion Control, Micronutrient & Specialty Formulations Chelated Micronutrient Production, Specialty Chemical & Fertilizer Manufacturing
Key Advantage Convenient, Ready-to-Use Water-Soluble DTPA Form High Active Content & Greater Formulation Control
Which DTPA form should you choose?
DTPA-5Na Solution is particularly suitable for manufacturers seeking a ready-to-use, highly water-soluble DTPA source for liquid production systems. DTPA Acid is better suited to manufacturers that prefer a high-purity solid raw material and have the capability to manage dissolution, neutralization, and downstream processing. The appropriate choice depends on formulation chemistry, manufacturing process, handling requirements, logistics, and cost.

Looking for DTPA-5Na Solution for Your Fertilizer Formulations?

Contact TerraNutrix to discuss ingredient sourcing, custom formulations, OEM production, and private label opportunities.

Scroll to Top

Chelating Agents Inquiry

General Contact

Ingredient Inquiry

Become a Distributor

Partner with TerraNutrix to supply crop nutrition products in your market.

Download Product Data Sheet

Enter your email to receive the full technical data sheet.