Per the manufacturer, the oleic acid allows the iron oxide nanoparticles to be soluble in the solvent (i.e. toluene).
700320
Iron oxide(II,III), magnetic nanoparticles solution
5 nm avg. part. size, 5 mg/mL in toluene
Synonym(s):
Magnetic iron oxide nanocrystals, Magnetite, Superparamagnetic iron oxide nanoparticles
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5 ML
¥34,500
About This Item
Empirical Formula (Hill Notation):
Fe3O4
CAS Number:
Molecular Weight:
231.53
MDL number:
UNSPSC Code:
12352302
PubChem Substance ID:
NACRES:
NA.23
Recommended Products
form
nanoparticles
solution
Quality Level
concentration
5 mg/mL in toluene
magnetization
≥30 emu/g (at ambient temperature under 4500 Oe)
avg. part. size
5 nm
particle size
5 nm±1 nm (TEM; conforms)
density
0.865 g/mL at 25 °C
SMILES string
O=[Fe].O=[Fe]O[Fe]=O
InChI
1S/3Fe.4O
InChI key
SZVJSHCCFOBDDC-UHFFFAOYSA-N
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General description
Concentration 5mg/ml includes total weight nanocrystals plus ligands.
Signal Word
Danger
Hazard Statements
Precautionary Statements
Hazard Classifications
Aquatic Chronic 3 - Asp. Tox. 1 - Flam. Liq. 2 - Repr. 2 - Skin Irrit. 2 - STOT RE 2 - STOT SE 3
Target Organs
Central nervous system
Storage Class Code
3 - Flammable liquids
WGK
WGK 3
Flash Point(F)
39.9 °F
Flash Point(C)
4.4 °C
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
Regulatory Listings
Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.
PRTR
Class I Designated Chemical Substances
FSL
Group 4: Flammable liquids
Type 1 petroleums
Hazardous rank II
Water insoluble liquid
ISHL Indicated Name
Substances Subject to be Indicated Names
ISHL Notified Names
Substances Subject to be Notified Names
JAN Code
700320-VAR:
700320-BULK:
700320-5ML:4548173292472
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What is the purpose of the oleic acid in Product 700320, Iron oxide, magnetic?
1 answer-
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How is the magnetization of Product 700320, Iron oxide, magnetic, determined?
1 answer-
Per the supplier, the magnetization is determined by using a Magnetic Susceptibility Balance.
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What is the Department of Transportation shipping information for this product?
1 answer-
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.
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What method is used to determine the size of the particles in Product 700320, Iron oxide, magnetic?
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TEM used to check particle size. Light Scattering or similar methods are not utilized.
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How should a sample of the Iron oxide(II,III), magnetic nanoparticles solution in toluene be prepared for analysis by transmission electron microscopy (TEM)?
1 answer-
The particle size is determined by TEM.If the solution as provided is not diluted, a superlattice of multilayer nanocrystals will form on the grid, appearing to be an aggregate. The solution can be diluted with the same solvent that it was shipped in (toluene). A solution diluted to 0.1-0.5 mg/mL should be concentrated enough to get a nice picture. One drop per grid should be sufficient. (Since the solution is provided at a concentration of 5 mg/mL, this would be a 10- to 50-fold dilution.)After applying the sample to the grid, a drying time of a minimum of 10-15 minutes is recommended.After performing several successful dilutions and getting good results, the analyst will get a feel for the correct dilution just by judging the color and darkness of the diluted sample. If you see lone isolated dots in the TEM, then your sample is too dilute. If you cannot distinguish separate particles, it is too concentrated. Good record keeping will help to zero in on the best dilution factor for the type of picture that you want.
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What is the coating thickness of oleic acid on product number 700312, 700320, and 700304, Iron oxide(II,III), magnetic nanoparticles solution?
1 answer-
The suppliers of the magnetic iron oxide nanoparticles in toluene have indicated that the particles are essentially coated with a monolayer of oleic acid. Since the oleic acid is a long chain hydrocarbon there can exist some folding and irregular structure on the surface. The suppliers estimate that one should add 1-2 nm to the particle size due to the presence of the oleic acid coating. From this, 1.5 nm is the closest approximation of coating thickness as provided by our suppliers.
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