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03680 Sigma-Aldrich

Ethylenediaminetetraacetic acid disodium salt dihydrate

ACS reagent, for complexometry, ≥99.0%

Synonym: Disodium ethylenediaminetetraacetate dihydrate, EDTA disodium salt, EDTA-Na2, Edathamil, Edetate disodium salt dihydrate, Sequestrene Na2

  • CAS Number 6381-92-6

  • Empirical Formula (Hill Notation) C10H14N2Na2O8 · 2H2O

  • Molecular Weight 372.24

  •  Beilstein Registry Number 3900609

  •  EC Number 205-358-3

  •  PubChem Substance ID 57646723

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Properties

Related Categories Analytical Reagents, Analytical Reagents for General Use, Analytical/Chromatography, Biochemicals and Reagents, Chelators,
grade   ACS reagent
  for complexometry
assay   ≥99.0% (KT)
  ≥99.0%
pH   4-6 (25 °C, 50 mg/mL in H2O)
mp   248 °C (dec.)(lit.)
anion traces   chloride (Cl-): ≤50 mg/kg
  sulfate (SO42-): ≤50 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: ≤50 mg/kg
  Mg: ≤5 mg/kg
  Mn: ≤5 mg/kg
  Ni: ≤5 mg/kg
  Pb: ≤5 mg/kg
  Zn: ≤5 mg/kg

Description

Application

Chelator of divalent cations. Inhibits enzymes, such as metalloproteases, that require divalent cations for activity.

Other Notes

A -D suffix exists for administrative purposes only.
All -D packages are 100% the same product, same quality, same specification as the package sizes previously sold without a -D.

Price and Availability

Suggested Laboratory Gloves


Laboratory GlovesThis substance has been tested against several types of hand protection for CE compliance. Click below to find the recommended gloves for handling this product.



Safety & Documentation

Safety Information

Symbol 
Signal word 
Warning
Hazard statements 
Precautionary statements 
Target organs 
Respiratory Tract
RIDADR 
NONH for all modes of transport
WGK Germany 
2
RTECS 
AH4410000
Flash Point(F) 
>212 °F
Flash Point(C) 
>100 °C

Documents

Certificate of Analysis

Protocols & Articles
Peer-Reviewed Papers
15

References

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