Diethylene Triamine Pentaacetic Acid (DTPA)

CAS No.: 67-43-6 (EINECS 200-652-8)

Molecular Formula: C₁₄H₂₃N₃O₁₀

Molecular Weight: 393.35

Structural Formula:

Properties:

Diethylenetriaminepentaacetic acid (DTPA) is a chelating agent that sequesters metal ions. Thus, DTPA cannot combine with other ingredients in a product.

The appearance of DTPA is a white crystal. It is soluble in hot water and alkaline solution, slightly soluble in water, and insoluble in organic solvents such as alcohol and ether. DTPA (diethylenetriaminepentaacetic acid) has a melting point of 230℃ (decomposition). Solubility in water (20℃) is 5g/L.

Specification:

Item	Index
Appearance	White crystalline powder
Assay	≥99%
Colority	≤250APHA
Specific gravity	1.3
Bulk density	1300kg/m3
pH value (1% of the solution)	2.1~2.5
Chelated value	250~254 mg CaCO3/g
Ash	≤0.2%
Water	≤0.3%
Iron (Fe)	≤0.001%
Heavy metals (Pb2+)	≤001%
Chloride(Cl-)	≤0.02%

Usage:

DTPA is used in soaps as a water softener, and it is also used to protect dyes and perfumes from combining with metals in solution, etc.

In addition, DTPA can be used as a highly effective chelating agent. Because of its strong chelation, DTPA chelating agent can be used as a color inhibitor in acrylic fiber production, the paper industry, water softener, textile auxiliaries, chelating titrants, etc.

Packing and storage:

PP bag lined with polyethylene bag net weight 25Kg/bag or as per customers requirement.

Store in a cool, dry place.

Keywords:

DTPA, DTPA Acid, diethylenetriaminepentaacetic acid; N, N-bis(2-(bis-(carbo xymethyl)amino) ethyl)-glycine; pentetic acid.