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40390 Sigma-Aldrich

Dimethylglyoxime

puriss. p.a., ACS reagent, for the detection of Ni, ≥99.0% (TLC)

Synonym: 2,3-Butanedione dioxime, Diacetyldioxime

  • CAS Number 95-45-4

  • Linear Formula CH3C(=NOH)C(=NOH)CH3

  • Molecular Weight 116.12

  •  Beilstein/REAXYS Number 506731

  •  EC Number 202-420-1

  •  MDL number MFCD00002117

  •  PubChem Substance ID 329755984

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Properties

Related Categories Analytical Reagents, Analytical Reagents for General Use, Analytical/Chromatography, C-D, Puriss p.a. ACS, Derivatization Reagents,
Quality Level   200
grade   ACS reagent
  puriss. p.a.
assay   ≥99.0% (TLC)
quality   for the detection of Ni
impurities   ≤0.02% insoluble matter in ethanol
ign. residue   ≤0.05% (as SO4)
mp   240-241 °C (lit.)
solubility   water: soluble 0.1 g/10 mL, clear, colorless
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
  Na: ≤50 mg/kg
  Ni: ≤5 mg/kg
  Pb: ≤5 mg/kg
  Zn: ≤5 mg/kg
SMILES string   CC(=N/O)\C(C)=N\O
InChI   1S/C4H8N2O2/c1-3(5-7)4(2)6-8/h7-8H,1-2H3/b5-3+,6-4+
InChI key   JGUQDUKBUKFFRO-GGWOSOGESA-N

Description

General description

Dimethylglyoxime (DMG) is a complexing ligand. Dimethylglyoxime forms a number of mixed ligand complexes with N-acetylglycine with metals such as VO(IV), Ni(II), Zn(II), Pd(II), Cd(II) and Pb(II). It is a useful reagent for the spectrophotometric determination of Co(II), Fe(II), Ni(II), Pd(II) and Re(VII).

Application

Dimethylglyoxime (DMG) was used as complexing agent for cobalt(II) and nickel(II) metals for the analysis of brine for trace metals by adsorptive stripping voltammetry. DMG was used in a study to develop a new DMG containing modified sol-gel carbon composite electrode for voltammetric sensing of heavy metals.

Safety & Documentation

Safety Information

Symbol 
GHS02  GHS02
Signal word 
Warning
Hazard statements 
Precautionary statements 
RIDADR 
UN1325 - class 4.1 - PG 3 - Flammable solids, organic, n.o.s., HI: all
WGK Germany 
3
RTECS 
EK2975000

Documents

Certificate of Analysis (COA)

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Protocols & Articles
Peer-Reviewed Papers
15

References

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