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72560 Sigma-Aldrich

Nitrilotriacetic acid

ACS reagent, ≥99.0%

Synonym: N,N-Bis(carboxymethyl)glycine, NTA, Tris(carboxymethyl)amine

  • CAS Number 139-13-9

  • Linear Formula N(CH2COOH)3

  • Molecular Weight 191.14

  •  Beilstein/REAXYS Number 1710776

  •  EC Number 205-355-7

  •  MDL number MFCD00004287

  •  PubChem Substance ID 57652425

  •  NACRES NA.21

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Properties

Related Categories Acids, Acids & Bases, Analytical Reagents, Analytical Reagents for General Use, Analytical/Chromatography,
Quality Level   200
grade   ACS reagent
assay   ≥99.0% (T)
  ≥99.0%
ign. residue   ≤0.1% (as SO4)
loss   ≤0.1% loss on drying
mp   245 °C (dec.) (lit.)
anion traces   chloride (Cl-): ≤100 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: ≤20 mg/kg
  K: ≤50 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
SMILES string   OC(=O)CN(CC(O)=O)CC(O)=O
InChI   1S/C6H9NO6/c8-4(9)1-7(2-5(10)11)3-6(12)13/h1-3H2,(H,8,9)(H,10,11)(H,12,13)
InChI key   MGFYIUFZLHCRTH-UHFFFAOYSA-N

Description

Application

An excellent chelating agent.

Safety & Documentation

Safety Information

Symbol 
Signal word 
Warning
Hazard statements 
Precautionary statements 
RIDADR 
NONH for all modes of transport
WGK Germany 
2
RTECS 
AJ0175000
Flash Point(F) 
212 °F
Flash Point(C) 
100 °C

Documents

Certificate of Analysis

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Protocols & Articles

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Peer-Reviewed Papers
15

References

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