32319

Diethylenetriaminepentaacetic acid

for complexometry, ≥99.0%

• Synonym(s): (Carboxymethylimino)bis(ethylenenitrilo)tetraacetic acid, N,N-Bis(2-[bis(carboxymethyl)amino]ethyl)glycine, DETAPAC, DTPA, Penta(carboxymethyl)diethylenetriamine, Pentetic acid
• Linear Formula: [(HOOCCH₂)₂NCH₂CH₂]₂NCH₂COOH
• CAS Number: 67-43-6
• Molecular Weight: 393.35
• Beilstein: 1810219
• EC Number: 200-652-8
• MDL number: MFCD00004289
• UNSPSC Code: 41116105
• PubChem Substance ID: 329754138
• NACRES: NA.21

Properties

• grade: for complexometry
• Assay: ≥99.0% (KT); ≥99.0%
• 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 (SO₄^2-): ≤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
• functional group: amine; carboxylic acid
• SMILES string: OC(=O)CN(CCN(CC(O)=O)CC(O)=O)CCN(CC(O)=O)CC(O)=O
• InChI: 1S/C14H23N3O10/c18-10(19)5-15(1-3-16(6-11(20)21)7-12(22)23)2-4-17(8-13(24)25)9-14(26)27/h1-9H2,(H,18,19)(H,20,21)(H,22,23)(H,24,25)(H,26,27)
• InChI key: QPCDCPDFJACHGM-UHFFFAOYSA-N

Description

General description

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Application

• Grafting nanocellulose with diethylenetriaminepentaacetic acid: Development of a novel paper additive for enhancing recycled OCC pulp fibers by functionalizing nanocellulose with DTPA (Li et al., 2022).
• Controlling multivalency and multimodality: Study on up to pentamodal dendritic platforms based on DTPA cores, illustrating DTPA′s role in multivalency and drug delivery systems (Pulido et al., 2014).
• Adsorption of Hg (II) ions by DTPA-modified cellulose: Exploration of a DTPA-modified cellulose adsorbent for removing mercury ions from aqueous solutions (Li et al., 2019).
• DTPA-functionalized multi-walled carbon nanotubes/titanium oxide-PVDF nanofiber membrane: Study on the effective separation of oil/water mixtures using a DTPA-functionalized membrane (Venkatesh et al., 2021).

Other Notes

Complexing agent for the chelation of iron in solution

Safety Information

• Pictograms: GHS08,GHS07
• Signal Word: Danger
• Hazard Statements: H319,H332,H360D,H373
• Precautionary Statements: P202 - P260 - P264 - P304 + P340 + P312 - P305 + P351 + P338 - P308 + P313
• Hazard Classifications: Acute Tox. 4 Inhalation - Eye Irrit. 2 - Repr. 1B - STOT RE 2 Inhalation
• Target Organs: Respiratory Tract
• Storage Class Code: 6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
• WGK: WGK 2
• Flash Point(F): 392.0 °F - closed cup
• Flash Point(C): 200 °C - closed cup
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves