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Documenti fondamentali

40390

Sigma-Aldrich

Dimethylglyoxime

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

Sinonimo/i:

2,3-Butanedione dioxime, Diacetyldioxime

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About This Item

Formula condensata:
CH3C(=NOH)C(=NOH)CH3
Numero CAS:
Peso molecolare:
116.12
Beilstein:
506731
Numero CE:
Numero MDL:
Codice UNSPSC:
12352100
ID PubChem:
NACRES:
NA.21

Grado

ACS reagent
puriss. p.a.

Livello qualitativo

Saggio

≥99.0% (TLC)

Stato

solid

Qualità

for the detection of Ni

tecniche

UV/Vis spectroscopy: suitable

Impurezze

≤0.02% insoluble matter in ethanol

Residuo alla calcinazione

≤0.05% (as SO4)

Punto di fusione

240-241 °C (lit.)

Solubilità

water: soluble 0.1 g/10 mL, clear, colorless

Cationi in tracce

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

Gruppo funzionale

amine
oxime

Stringa SMILE

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+
JGUQDUKBUKFFRO-GGWOSOGESA-N

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Descrizione generale

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).

Applicazioni

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.

Pittogrammi

Flame

Avvertenze

Warning

Indicazioni di pericolo

Classi di pericolo

Flam. Sol. 2

Codice della classe di stoccaggio

4.1B - Flammable solid hazardous materials

Classe di pericolosità dell'acqua (WGK)

WGK 3

Dispositivi di protezione individuale

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


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I clienti hanno visto anche

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)
Dimethylglyoxime doped sol-gel carbon composite voltammetric sensor for trace nickel.
Wang J, et al.
Electroanalysis, 9(9), 689-692 (1997)
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)
Jacob P Thyssen et al.
The Science of the total environment, 409(22), 4663-4666 (2011-09-06)
Nickel and cobalt allergy remain frequent in dermatitis patients. It is important to determine possible nickel and cobalt exposures at work as these may offer important information to regulators and physicians who perform patch testing. Clinical relevance of metal exposure
Jacob P Thyssen et al.
Contact dermatitis, 62(5), 279-288 (2010-06-12)
The accuracy of the dimethylglyoxime (DMG) nickel spot test has been questioned because of false negative and positive test reactions. The EN 1811, a European standard reference method developed by the European Committee for Standardization (CEN), is fine-tuned to estimate

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