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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

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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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)
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)
Jacob Pontoppidan Thyssen et al.
Contact dermatitis, 59(1), 38-42 (2008-06-10)
Nickel dermatitis may be caused by frequent and prolonged use of cell phones. Because little is known about the frequency of nickel release from cell phones, it is difficult to estimate the risk of nickel sensitization and dermatitis among their
Jacob P Thyssen et al.
Contact dermatitis, 63(3), 151-156 (2010-08-10)
Nickel allergy is prevalent as assessed by epidemiological studies. In an attempt to further identify and characterize sources that may result in nickel allergy and dermatitis, we analysed items identified by nickel-allergic dermatitis patients as causative of nickel dermatitis by
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