Chemical name:

Diethylenetriaminepentaacetic acid (DTPA)

Molecular formula:

C₁₄H₂₃N₃O₁₀

Molecular weight:

393.35

CAS No:

67-43-6

White crystal powder

Content %

99.0  min

PH(1% solution, 25℃):

2.1-2.5

Heavy metal as Pb %

0.001 max

Iron(Fe)%

0.001 max

Chloride(Cl)%:

0.01 max

Sulfate (SO₄) %:

0.05 max

Chelated: mgCaCO₃/g

252 min (PH=11)

Loss on drying:

0.2 max

Characteristics:

White crystalline granules, soluble in hot water and lye, slightly soluble in water, solubility in water (20℃) 5 g / l, and do not dissolve in organic solvents such as alcohols and ethers. Melting point: 230℃(decomposition)