Description
suitable for suitability for complexometry, ≥99.0%
Synonyms: (Carboxymethylimino)bis(ethylenenitrilo)tetraacetic acid, N,N-Bis(2-[bis(carboxymethyl)amino]ethyl)glycine, DETAPAC, DTPA, Penta(carboxymethyl)diethylenetriamine, Pentetic acid
General description
Diethylenetriaminepentaacetic acid (DTPA), also known as pentetic acid, is a polyamino carboxylic acid used as a chelating agent. It’s a synthetic molecule that can bind to metal ions, forming stable complexes. DTPA is a white solid with limited water solubility and is an expanded version of EDTA.
PROPERTIES
Assay
≥99.0% (KT)
≥99.0%
Pack Size
100g
ign. residue
≤0.05% (as SO4)
loss
≤0.1% loss on drying, 20°C, HV
mp
219-220 °C (lit.)
anion traces
chloride (Cl–): ≤1000 mg/kg
sulfate (SO42-): ≤200 mg/kg
cation traces
Ca: ≤10 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
K: ≤10 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Na: ≤500 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Zn: ≤5 mg/kg
suitability
suitable for suitability for complexometry
functional group
amine
carboxylic acid
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