Description

Prussian Blue CAS NO 14038-43-8 is a synthetic inorganic pigment and coordination compound, chemically known as ferric ferrocyanide. This deep blue compound is valued for its intense color, chemical stability, and unique properties, making it a critical material in several advanced industrial and technical fields. It is primarily sought after by manufacturers and researchers in the pharmaceutical, analytical chemistry, and specialty materials sectors for its precise functional characteristics.

Application

• Pharmaceutical Antidote: As the active pharmaceutical ingredient (API) in treatments for internal contamination with radioactive cesium (137Cs) or non-radioactive thallium.
• Analytical Chemistry Reagent: Used as a key staining agent in histology for the detection of iron (Perls' Prussian blue stain) and in various colorimetric assays.
• Pigment & Dye Manufacturing: Serves as a classic blue pigment in inks, paints, plastics, and coatings, prized for its color fastness.
• Electrochemical Applications: Utilized in the research and development of battery electrodes and electrochromic devices due to its redox activity.
• Decontamination & Environmental Remediation: Employed in filters and adsorbents for the selective removal of heavy metal ions, particularly cesium, from aqueous solutions.
• Specialty Catalyst: Investigated for use in certain oxidation and photocatalytic reactions.

Basic Information

Product Name	Prussian Blue
CAS No.	14038-43-8
Molecular Formula	Fe4[Fe(CN)6]3 • xH2O
Molecular Weight	859.23 (anhydrous basis)
Synonyms	Ferric ferrocyanide; Iron(III) hexacyanoferrate(II); Berlin blue; Chinese blue; Paris blue; Milori blue; Pigment Blue 27; CI 77510; Ammonium ferric ferrocyanide (related compounds); Potassium ferric ferrocyanide (related compounds); Soluble Prussian Blue; Insoluble Prussian Blue.
EINECS	237-875-5

Quality Control

Our Prussian Blue is produced and tested under a strict quality management system. We offer grades suitable for technical, reagent, and pharmaceutical applications, with specifications aligned to relevant industry needs. For pharmaceutical-grade material, production can adhere to current Good Manufacturing Practice (cGMP) guidelines. A comprehensive Certificate of Analysis (COA), detailing parameters such as assay, heavy metal limits, and identification, is provided with each batch to ensure traceability and compliance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (15-25°C). Keep away from strong acids and strong oxidizing agents.

Specification

Item	Specification
Appearance	Dark blue, fine powder
Identification (IR)	Conforms to standard
Assay (Fe4[Fe(CN)6]3)	≥ 96.0%
Loss on Drying	≤ 15.0 %
Water-soluble substances	≤ 1.0 %
Heavy Metals (as Pb)	≤ 20 ppm
Arsenic (As)	≤ 3 ppm
Cyanide, soluble	≤ 10 ppm
Particle Size (D90)	≤ 45 µm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.