Prussian White Powder

CAS Number 14038-43-8

Advanced Ceramic Materials, Battery Materials, Cathode Active Materials, Inorganic Electronic Materials, Materials, Sodium-Ion Battery Materials

MSDS

A Cathode Active Material for Sodium Batteries

Promising candidate for high-performance, next-generation batteries

Overview | Product Information | Related Products | Technical Support

Prussian White is a cathode active material used in sodium-ion batteries. It is the fully reduced form of Prussian blue, with a general chemical formula of A₂M'[M"(CN)₆], where A is alkali metal and M' and M" are transition metals. Prussian White has a rigid and spacious crystal lattice, allowing rapid intercalation and extraction of sodium ions. The excellent volumetric stability enables Prussian White to withstand internal swelling, stress, and strain that develop during charge–discharge cycling.

Manganese and iron-based Prussian White compositions are particularly attractive due to their elemental abundance and high theoretical capacity. A representative manganese–iron Prussian White delivers a first discharge capacity of 154 mAh/g, corresponding to 90% of the theoretical capacity of 171 mAh/g, and retains 81% of this capacity after 20 cycles.

High Specific Energy Density

Promising cathode material

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General Information

CAS Number	N/A
Chemical Formula	Na₂Mn[Fe(CN)₆]
Full Name	Sodium manganese hexacyanoferrate
Molecular Weight	312.87 g/mol
Synonyms	Berlin white, Everett's salt, PW, Prussian white analog
Classification or Family	Sodium iron batteries, Battery materials, Cathode active materials

Product Details

Particle Size	0.9 µm (D50)
Tap Density	0.8 g/cm³
Specific Surface Area	6.41 m²/g
First Discharge Capacity	145 mAh/g
Appearance	Off-white powder

MSDS Documentation

Prussian White Powder MSDS Sheet

References

Decoupling degradation at the electrode interfaces in Prussian white full cells, C. Misiewicz et al., Adv. Mater. Interfaces, 12, 2400854 (2025); DOI: 10.1002/admi.202400854.
Rhombohedral (R3) Prussian white as cathode material: an ab-initio study, S. Baumgart et al., Batteries & Supercaps., 6, e202300294 (2023); DOI: 10.1002/batt.202300294.
Electrochemical study of Prussian white cathodes with glymes – pathway to graphite-based sodium-ion battery full cells, S. Patnaik et al., Batteries & Supercaps., 5, e202200043 (2022); DOI: 10.1002/batt.202200043.

Design and validation of anode-free sodium-ion pouch cells employing Prussian white cathodes, A. Willow et al., Batteries, 11, 97 (2025); DOI: 10.3390/batteries11030097.
Dehydration conditions and ultrafast rehydration of Prussian white: phase transition dynamics and implications for sodium-ion batteries, ACS Materials Lett., 6, 5208–5214 (2024); DOI: 10.1021/acsmaterialslett.4c01833.
Unravelling the origin of capacity fade in Prussian white hard carbon full cells through operando X-ray diffraction, I. Nielsen et al., J. Mater. Chem. A, 12, 17413 (2024); DOI: 10.1039/d4ta02325k.
Water driven phase transitions in Prussian white cathode materials, I. Nielsen et al., J. Phys. Energy, 4, 044012 (2022); DOI: 10.1088/2515-7655/ac9808.

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