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Merck
CN

720704

Iron(III) oxide, dispersion

nanoparticles, ≤110 nm particle size, 20 wt. % in H2O

Synonym(s):

Iron oxide in water

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About This Item

Empirical Formula (Hill Notation):
Fe2O3
CAS Number:
1309-37-1
Molecular Weight:
159.69
NACRES:
NA.23
PubChem Substance ID:
329763741
UNSPSC Code:
12352300
MDL number:
MFCD00011008

Key Documents

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InChI

1S/2Fe.3O

SMILES string

O=[Fe]O[Fe]=O

InChI key

JEIPFZHSYJVQDO-UHFFFAOYSA-N

form

nanoparticles

concentration

20 wt. % in H2O

particle size

≤110 nm

pH

6-8

density

1.17 g/mL±0.1 g/mL at 25 °C

Quality Level

200

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Storage Class

10 - Combustible liquids

wgk

nwg

flash_point_f

Not applicable

flash_point_c

Not applicable

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Certificates of Analysis (COA)

Lot/Batch Number
MKCD8614
MKCD0610
MKCC4654
MKBT6315V
MKBQ3768V

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  1. Which document(s) contains shelf-life or expiration date information for a given product?

    If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.

  2. How do I get lot-specific information or a Certificate of Analysis?

    The lot specific COA document can be found by entering the lot number above under the "Documents" section.

  3. How do I find price and availability?

    There are several ways to find pricing and availability for our products. Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote.  USA customers:  1-800-325-3010 or view local office numbers.

  4. What is the Department of Transportation shipping information for this product?

    Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product. 

  5.  Product 720704 is a dispersion of iron(III) oxide particles in water. Is there also a dispersant present? If so, what is the structure of the dispersant?

    The dispersant is an ethoxylated carboxylic acid. Please see the structure in the attached pdf file. The carboxylic acid is esterified, so the terminus, as shown, is an alcohol.

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Magnetic iron oxide nanoparticles: synthesis, stabilization, vectorization, physicochemical characterizations, and biological applications
Laurent S, et al.
Chemical Reviews, 108(6), 2064-2110 (2008)
J Sangeetha et al.
Journal of biomedical nanotechnology, 9(5), 751-764 (2013-06-28)
We present methodologies to functionalize iron oxide (Fe3O4) nanoparticles with biosurfactants and biocompatibility results. Positively charged Fe3O4 nanoparticles of average hydrodynamic size -26 nm is functionalized with four different molecules of interest, viz., surfactin, rhamnolipid, polyethylene glycol (PEG) and dextran.
Alice Panariti et al.
Journal of biomedical nanotechnology, 9(9), 1556-1569 (2013-08-29)
Magnetic nanoparticles have emerged as important players in current research in modern medicine since they can be used in medicine for diagnosis and/or therapeutic treatment of diseases. Among many therapeutic applications of iron-based nanoparticles, drug delivery and photothermal therapy are
Andrew Pratt et al.
Nature materials, 13(1), 26-30 (2013-11-05)
Geometry and confinement effects at the nanoscale can result in substantial modifications to a material's properties with significant consequences in terms of chemical reactivity, biocompatibility and toxicity. Although benefiting applications across a diverse array of environmental and technological settings, the
Brian T Farrell et al.
Neurology, 81(3), 256-263 (2013-06-19)
The study goal was to assess the benefits and potential limitations in the use of ultrasmall superparamagnetic iron oxide (USPIO) nanoparticles in the MRI diagnosis of CNS inflammatory diseases and primary CNS lymphoma. Twenty patients with presumptive or known CNS
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