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Merck
CN

40390

Dimethylglyoxime

ACS reagent grade, ≥99.0% (TLC), solid, suitable for UV/Vis spectroscopy, for the detection of Ni, puriss. p.a.

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
NACRES:
NA.21
PubChem Substance ID:
329755984
UNSPSC Code:
12352100
EC Number:
202-420-1
MDL number:
MFCD00002117
Beilstein/REAXYS Number:
506731
Assay:
≥99.0% (TLC)
Form:
solid

Key Documents

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Product Name

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

InChI key

JGUQDUKBUKFFRO-GGWOSOGESA-N

InChI

1S/C4H8N2O2/c1-3(5-7)4(2)6-8/h7-8H,1-2H3/b5-3+,6-4+

SMILES string

CC(=N/O)\C(C)=N\O

grade

ACS reagent
puriss. p.a.

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

functional group

amine
oxime

Quality Level

200

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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.

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).

pictograms

Flame
GHS02

signalword

Warning

hcodes

H228

Hazard Classifications

Flam. Sol. 2

Storage Class

4.1B - Flammable solid hazardous materials

wgk

WGK 3

ppe

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges

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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.
Journal of the American Academy of Dermatology, 58(6), 1000-1005 (2008-04-15)
Nickel sensitization is frequent among US patients with dermatitis and in the general population. In Europe, decreasing prevalences of nickel sensitization are observed as a result of the European Union Nickel Directive. However, no directive exists in the United States.
A nickel for your thoughts: determining relative nickel content using an analog color scale.
Elise M Herro et al.
Dermatitis : contact, atopic, occupational, drug, 23(4), 183-184 (2012-07-26)
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