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Merck
CN

940895

Iron(III) phosphate dihydrate

greener alternative

≥99.99% trace metals basis

Synonym(s):

Ferric orthophosphate, Ferric phosphate, Ferric phosphate dihydrate

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About This Item

Linear Formula:
FePO4 · 2H2O
CAS Number:
13463-10-0
Molecular Weight:
186.85
MDL number:
MFCD00221523
NACRES:
NA.21
Assay:
≥99.99% trace metals basis (≤ 100 ppm trace metals), ≥99.99% trace metals basis
Form:
powder or crystals
Solubility:
water: soluble

Key Documents

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InChI key

BMTOKWDUYJKSCN-UHFFFAOYSA-K

InChI

1S/Fe.H3O4P.2H2O/c;1-5(2,3)4;;/h;(H3,1,2,3,4);2*1H2/q+3;;;/p-3

SMILES string

O.O.[Fe+3].[O-]P([O-])([O-])=O

grade

(Titration with Na2S2O3)

assay

≥99.99% trace metals basis (≤ 100 ppm trace metals), ≥99.99% trace metals basis

form

powder or crystals

greener alternative product characteristics

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solubility

water: soluble

anion traces

chloride (Cl-): ≤20 ppm, sulfate (SO42-): ≤50 ppm

cation traces

Al: ≤10 ppm, Cd: ≤10 ppm, Cr: ≤10 ppm, K: ≤10 ppm, Mg: ≤10 ppm, Mn: ≤10 ppm, Na: ≤20 ppm, Ni: ≤10 ppm, Pb: ≤10 ppm, Zn: ≤10 ppm

greener alternative category

Enabling

Quality Level

200

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General description

Iron(III) phosphate dihydrate, with a purity of ≥99.99% trace metals, is a high-purity chemical. It is a hydrated form of iron(III) phosphate, appearing typically as a solid with a slightly off-white to light yellow color. It comes with a purity ≥99.99% , and trace metal content ≤ 100 ppm. Its high purity makes it suitable for sensitive applications where trace metal contamination must be minimized.
We are committed to bringing you Greener Alternative Products, which belongs to one of the four categories of greener alternatives. This product belongs to an Enabling category. Iron phophate dihydrate precursor enables greener synthesis of high-performance LiFePO4/C cathodes, demonstrating sustainable production for advanced lithium-ion batteries, offering a promising solution in greener energy storage technology. Click here for more information.

Application

Iron(III) phosphate dihydrate with a purity of ≥99.99% trace metals can be used in various research applications. It is suitable to use as a precursor in the production of lithium iron phosphate (LiFePO4) for use in lithium-ion batteries (LIBs) particularly in the cathode material. It can be used as an efficient catalyst for the chemo selective acetylation of alcohols and phenols under solvent free condition at room temperature and with high yields. Apart from the product also widely used in waste water purification and ferroelectric applications. [,]

Features and Benefits

With 99.99% purity, the product contains minimal trace metal impurities, making it ideal for use in sensitive processes where contamination must be strictly controlled. The high purity ensures consistent performance, which is essential in research and production environments that require reproducibility and precision.

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

Regulatory Information

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Certificates of Analysis (COA)

Lot/Batch Number
0000437628
0000437629
0000437629
0000437628
0000401237

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An improved synthesis of iron phosphate as a precursor to synthesize lithium iron phosphate
Jiang D, et al.
Bulletin of Materials Science, 43, 50-50 (2020)
Effects of temperature and phosphoric acid addition on the solubility of iron phosphate dihydrate in aqueous solutions
Zhang T, et al.
Chinese Journal of Chemical Engineering, 25, 211-215 (2017)

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