Pentasodium Salt of Diethylene Triaminepentaacetic Acid, Pentasodium DTPA, Pentasodium Pentetate, DTPA·Na₅, 140-01-2

PENTASODIUM SALT OF DIETHYLENE TRIAMINEPENTAACETIC ACID (DTPA·Na₅)

1. PRODUCT IDENTIFICATION AND CHEMICAL IDENTITY

Short Identity Section

Detailed Identification

Description:
DTPA·Na₅ is a high-performance chelating agent capable of forming strong and stable complexes with various metal ions. It effectively binds metal ions such as iron, copper, manganese, zinc, and calcium, preventing their precipitation and enhancing process efficiency. Due to its high chelating capacity, it is used in many industrial applications requiring water softening, metal passivation, bleaching stabilization, and metal ion control. It also serves as a chelating agent in the agricultural sector to enhance the uptake of micronutrients by plants. According to ECHA, it is registered with EC number 205-391-3 and CAS number 140-01-2.

2. PHYSICAL AND CHEMICAL PROPERTIES

50% Active Matter Solution

30% Active Matter Solution

Note: Values are typical and may vary by source and production batch. The molecular weight is 503.26 g/mol (anhydrous basis).

3. SOLUBILITY PROFILE

Note: DTPA·Na₅ is completely soluble in water and miscible with many organic solvents.

4. CHEMICAL PROPERTIES AND REACTIONS

Incompatibilities

• Strong oxidizing agents

• Strong acids (pH-lowering effect)

• Active metals

Chemical Reactions

• Chelation: Forms stable, water-soluble complexes with metal ions (Fe³⁺, Cu²⁺, Mn²⁺, Zn²⁺, Ca²⁺).

• Metal Passivation: Prevents protective layer formation on metal surfaces.

• Bleaching Stabilization: Binds metal ions in peroxide bleaching processes, preventing bleach decomposition.

5. SPECIFICATIONS

Packaging Options

6. APPLICATIONS AND INDUSTRIAL USES

6.1 Primary Application Areas

6.2 Key Advantages

• Strong metal ion complexing ability

• High performance under hard water conditions

• Effectively binds iron, copper, manganese, and calcium ions

• Increases bleach stability

• Reduces metal-induced discoloration

• Prevents precipitate formation

• Wide range of industrial applications

• Forms stable complexes completely soluble in water

6.3 Usage Information

DTPA·Na₅ can be used alone or as an auxiliary component in detergent formulations, bleaching systems, water treatment chemicals, and micronutrient fertilizers. The application dosage should be determined based on the concentration of metal ions present in the system.

7. BIOLOGICAL AND STRUCTURAL PROPERTIES

Note: This product is an industrial chelating agent. It is not intended for biological, pharmaceutical (except pharmaceutical applications), or food applications.

8. BIOCHEMICAL APPLICATIONS

Note: Not applicable for this industrial chelating agent.

9. SAFETY AND TOXICOLOGY

9.1 Acute Toxicity

Note: The acute inhalation toxicity (ATE) is 1.5 mg/L (dusts or mists), classified as Acute Tox. 4 (H332).

9.2 Chronic Toxicity

9.3 GHS Classification

Note: The harmonized classification from ECHA includes Met. Corr. 1 (H290), Eye Irrit. 2 (H319), Acute Tox. 4 (H332), and Repr. 2 (H361). Some notifiers also include Skin Irrit. 2 (H315) and STOT RE 2 (H373).

9.4 Precautionary Statements

9.5 Safety Precautions and PPE

Hazards:

• May be corrosive to metals

• Harmful if inhaled

• Causes skin irritation

• Causes serious eye irritation

• Suspected of damaging fertility or the unborn child

• May cause damage to organs through prolonged or repeated exposure

PPE (recommended):

• Chemical-resistant gloves

• Safety goggles

• Suitable work clothing

• Face shield when necessary

9.6 Environmental Fate

10. TRANSPORT INFORMATION

Note: Transport classification is UN 3267, Class 8, Packing Group III, as confirmed by Fisher Scientific.

11. REGULATORY INFORMATION

Note: DTPA·Na₅ is registered under REACH with EC number 205-391-3 and CAS number 140-01-2. It is listed in the TSCA Inventory.

12. STORAGE AND HANDLING

13. FIREFIGHTING MEASURES

14. ACCIDENTAL RELEASE MEASURES

15. FIRST AID MEASURES

16. RAW MATERIALS AND DOWNSTREAM PRODUCTS

16.1 Raw Materials (Upstream)

16.2 Downstream Products

17. SECTORAL SUITABILITY AND USAGE LEVELS

18. CARBON DIOXIDE ABSORPTION AND REAGENTS

Not applicable. DTPA·Na₅ is an industrial chelating agent and is not used for CO₂ absorption or as a chemical reagent.

19. DERIVATIVES AND RELATED COMPOUNDS

Note: DTPA·Na₅ has a stronger chelating capacity than EDTA and demonstrates superior performance, especially in high-iron systems.

20. SUMMARY AND CRITICAL WARNINGS

SUMMARY

DTPA·Na₅ is a high-performance chelating agent capable of forming strong and stable complexes with various metal ions. It effectively binds metal ions such as iron, copper, manganese, zinc, and calcium, preventing their precipitation and enhancing process efficiency. Due to its high chelating capacity, it is used in many industrial applications requiring water softening, metal passivation, bleaching stabilization, and metal ion control. It also serves as a chelating agent in the agricultural sector to enhance the uptake of micronutrients by plants.

It appears as a clear yellow to pale yellow liquid. For the 50% active matter solution, active content is ≥50.0%, density is ≥1.30 g/cm³ (20°C), pH is 10.5–12.5, and chelation value is ≥99 mg CaCO₃/g. For the 30% active matter solution, active content is ≥30.0%, density is ≥1.18 g/cm³, and chelation value is ≥60 mg CaCO₃/g. The molecular weight is 503.26 g/mol.

It is used in the detergent and cleaning industry, textile industry, paper and pulp industry, metal treatment and plating, water treatment, and agricultural applications.

Key Properties

Main Application Areas

Key Safety Points

• CORROSIVE: May be corrosive to metals (H290).

• HARMFUL: Harmful if inhaled (H332).

• SKIN/EYE IRRITATION: Causes skin irritation (H315) and serious eye irritation (H319).

• REPRODUCTIVE TOXICITY: Suspected of damaging fertility or the unborn child (H361).

• ORGAN DAMAGE: May cause damage to organs through prolonged or repeated exposure (H373).

• AQUATIC TOXICITY: Harmful to aquatic life with long-lasting effects (H412).

• PPE REQUIRED: Use chemical-resistant gloves, safety goggles, and suitable work clothing.

• STORAGE: Store in a cool, dry place, protected from direct sunlight. Keep container closed after use.

• DISPOSAL: Dispose of according to local regulations.

Critical Warnings

• DTPA·Na₅ is alkaline; avoid contact with skin and eyes.

• May be corrosive to metals.

• Harmful if inhaled.

• Suspected of damaging fertility or the unborn child (Repr. 2).

• May cause damage to organs through prolonged or repeated exposure.

• Harmful to aquatic life with long-lasting effects.

• This TDS contains complete toxicological, transport, firefighting, and first aid data, but always refer to the supplier's official SDS/MSDS.

• Do not use this TDS as a substitute for the official SDS/MSDS.

• Users are responsible for determining the suitability of the product for their specific applications and for complying with all applicable regulations and safety requirements.

Disclaimer:
This Technical Data Sheet (TDS) is for informational purposes only. The information provided is based on the original source document, verified CAS/EC numbers, and data completed from reliable sources (ECHA, Fisher Scientific, CDH Fine Chemical, manufacturer SDSs). However, the user is solely responsible for determining the suitability of the product for their specific applications and for complying with all applicable regulations and safety requirements. For complete safety, handling, storage, and regulatory compliance information, always refer to the official Safety Data Sheet (SDS/MSDS) provided by the manufacturer/supplier. Users are responsible for testing the product in their own processes and applications. All local, national, and international regulations must be followed when working with DTPA·Na₅.