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725358

Sigma-Aldrich

Iron oxide(II,III), magnetic nanoparticles solution

10 nm avg. part. size, 5 mg/mL in H2O

Synonyme(s) :

Magnetic iron oxide nanocrystals, Magnetite, Superparamagnetic iron oxide nanoparticles

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About This Item

Formule empirique (notation de Hill):
Fe3O4
Numéro CAS:
1317-61-9
Poids moléculaire :
231.53
Numéro MDL:
MFCD00011010
Code UNSPSC :
12352302
ID de substance PubChem :
329764149
Nomenclature NACRES :
NA.23

Forme

dispersion
nanoparticles

Niveau de qualité

100

Concentration

5 mg/mL in H2O

Magnétisation

>45 emu/g, at 4500Oe

Taille moy. des particules

10 nm

Taille des particules

9-11 nm (TEM)

Densité

1.00 g/mL at 25 °C

Chaîne SMILES 

O=[Fe].O=[Fe]O[Fe]=O

InChI

1S/3Fe.4O

Clé InChI

SZVJSHCCFOBDDC-UHFFFAOYSA-N

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Description générale

Concentration 5mg/ml includes total weight nanocrystals plus ligands.

Application



  • Optical resolution of ephedrine: A study explored the optical resolution of racemic ephedrine using various derivatives of tartaric acid, presenting a method that could refine the production of pharmaceutical-grade ephedrine hydrochloride (Bánhegyi et al., 2022).


  • Stereoselective forensic analysis: Supercritical fluid chromatography coupled with tandem mass spectrometry was used to perform a stereoselective analysis of ephedrine and its isomers in seized methamphetamine samples, offering insights into forensic applications of ephedrine hydrochloride (Segawa et al., 2021).


  • Chiral analysis of stimulants: A chiral high-performance liquid chromatography-tandem mass spectrometry method was applied to determine amphetamine-type stimulants, including ephedrine, in forensic samples, providing a tool for the precise separation and identification of chiral drugs (Schwelm et al., 2020).


Code de la classe de stockage

12 - Non Combustible Liquids

Classe de danger pour l'eau (WGK)

nwg

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

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Marina I Siponen et al.
Nature, 502(7473), 681-684 (2013-10-08)
Magnetotactic bacteria align along the Earth's magnetic field using an organelle called the magnetosome, a biomineralized magnetite (Fe(II)Fe(III)2O4) or greigite (Fe(II)Fe(III)2S4) crystal embedded in a lipid vesicle. Although the need for both iron(II) and iron(III) is clear, little is known
Jens Baumgartner et al.
Nature materials, 12(4), 310-314 (2013-02-05)
The formation of crystalline materials from solution is usually described by the nucleation and growth theory, where atoms or molecules are assumed to assemble directly from solution. For numerous systems, the formation of the thermodynamically stable crystalline phase is additionally
Yongxing Hu et al.
Journal of the American Chemical Society, 135(6), 2213-2221 (2013-01-26)
Controlled assembly of nanoparticles into asymmetric configurations is of great interest due to their novel properties and promising applications. In this Article, we report a generic strategy for the synthesis of dimer nanoclusters and asymmetric nanoassemblies by using magnetic colloidal
Kaori Kohara et al.
Chemical communications (Cambridge, England), 49(25), 2563-2565 (2013-02-21)
Carboxylated SiO2-coated α-Fe nanoparticles have been successfully prepared via CaH2-mediated reduction of SiO2-coated Fe3O4 nanoparticles followed by surface carboxylation. These α-Fe-based nanoparticles, which are characterized by ease of coating with additional functional groups, a large magnetization of 154 emu per
Leyong Zeng et al.
Nanoscale, 5(5), 2107-2113 (2013-02-06)
Multifunctional Fe(3)O(4)-TiO(2) nanocomposites with Janus structure for magnetic resonance imaging (MRI) and potential photodynamic therapy (PDT) were synthesized, in which Fe(3)O(4) was used as a MRI contrast agent and TiO(2) as an inorganic photosensitizer for PDT. Their morphology, structure, and
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