Berlin Blue Insoluble CAS NO 25869-98-1

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CAS No.:25869-98-1

Grade:Pharmacy Grade

Content:99.9%

Brand:Customizable

Packaging:Customizable

Description

Berlin Blue Insoluble is a synthetic inorganic pigment, chemically known as ferric ferrocyanide. This compound is valued for its intense, stable blue coloration and its insolubility in water and common solvents, making it a reliable colorant for demanding applications. It is primarily utilized in industries requiring permanent, non-bleeding pigments, such as paints, coatings, plastics, and specialty inks.

Application

As a blue pigment in the formulation of industrial paints, coatings, and primers.
For coloring plastics, masterbatches, and synthetic fibers where color fastness is critical.
In the production of printing inks, including security inks and specialty graphic arts applications.
As a colorant in construction materials like concrete, mortar, and decorative plasters.
In the manufacture of artists' colors and high-grade crayons.
For tinting paper and paperboard products.
Potential use as a catalyst or reagent in specific chemical synthesis processes.

Basic Information


Product Name	Berlin Blue Insoluble
CAS No.	25869-98-1
Molecular Formula	Fe4[Fe(CN)6]3•xH2O
Molecular Weight	859.23 (anhydrous basis)
Synonyms	Ferric Ferrocyanide; Iron(III) Hexacyanoferrate(II); Prussian Blue; Iron Blue; Chinese Blue; Paris Blue; Milori Blue; Pigment Blue 27; CI 77510
EINECS	247-304-1

Quality Control

Our Berlin Blue Insoluble is manufactured under a strict quality management system. Each batch undergoes rigorous testing for key parameters including color strength, purity, particle size distribution, and chemical composition to ensure consistency and performance. Certificates of Analysis (COA) detailing these specifications are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong alkalis and organic solvents. The product is stable under normal storage conditions.

Specification

Item	Specification
Appearance	Dark blue, fine powder
Identification (IR)	Conforms to standard
Assay (as Fe4[Fe(CN)6]3)	≥ 95.0%
Water Soluble Matter	≤ 1.0%
Moisture Content	≤ 5.0%
Particle Size (D50)	Contact for details
Oil Absorption	Contact for details
pH (10% aqueous slurry)	3.0 - 5.0