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40390

Sigma-Aldrich

Dimethylglyoxime

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

Synonym(s):

2,3-Butanedione dioxime, Diacetyldioxime

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About This Item

Linear Formula:
CH3C(=NOH)C(=NOH)CH3
CAS Number:
95-45-4
Molecular Weight:
116.12
Beilstein:
506731
EC Number:
202-420-1
MDL number:
MFCD00002117
UNSPSC Code:
12352100
PubChem Substance ID:
329755984
NACRES:
NA.21

grade

ACS reagent
puriss. p.a.

Quality Level

200

Assay

≥99.0% (TLC)

form

solid

quality

for the detection of Ni

technique(s)

UV/Vis spectroscopy: suitable

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

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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.

Pictograms

Flame
GHS02

Signal Word

Warning

Hazard Statements

H228

Hazard Classifications

Flam. Sol. 2

Storage Class Code

4.1B - Flammable solid hazardous materials

WGK

WGK 3

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
1366220V
1421642V
1421642
1402056
1366220

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Application of adsorptive stripping voltammetry (AdSV) for the analysis of trace metals in brine.
Romanus A, et al.
Fresenius Journal of Analytical Chemistry, 340(6), 363-370 (1991)
Dimethylglyoxime doped sol-gel carbon composite voltammetric sensor for trace nickel.
Wang J, et al.
Electroanalysis, 9(9), 689-692 (1997)
Preparation and Spectral Properties of Mixed-Ligand Complexes of VO (IV), Ni (II), Zn (II), Pd (II), Cd (II) and Pb (II) with Dimethylglyoxime and N-Acetylglycine.
Shaker SA
Journal of Chemistry, 7(S1), S580-S586 (2010)
Jacob Pontoppidan Thyssen et al.
The Science of the total environment, 407(20), 5315-5318 (2009-07-28)
Nickel allergic subjects are at risk factor of acquiring hand eczema. In 1990 and 1994, respectively, Denmark and member states in the EU regulated nickel release from selected consumer products. The intention was that the nickel epidemic could be controlled
Jandee Kim et al.
Langmuir : the ACS journal of surfaces and colloids, 27(23), 14638-14646 (2011-10-18)
Dimethylglyoxime (DMG) adsorbed on Au(111) was investigated using electrochemical scanning tunneling microscopy (STM) and X-ray photoelectron spectroscopy (XPS). STM experiments revealed three different structures of adsorbed DMG at open circuit potential (~0.07 V versus Ag/AgCl): (2√3×2√3)R30°-α, (2√3×4√3)R30°-β, and (2√3×4√3)R30°-γ. The
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