Description

Potassium Ferrocyanide Trihydrate is a yellow crystalline inorganic salt of significant industrial importance. Its primary value lies in its role as a key precursor for the production of the pigment Prussian Blue and as a versatile anti-caking agent. This compound is essential for manufacturers in the food, chemical, and metallurgical sectors. It is also utilized in analytical chemistry and as a starting material for other ferrocyanide salts.

Application

• Pigment Manufacturing: Serves as the primary raw material for synthesizing Iron Blue (Prussian Blue) pigments used in paints, inks, and plastics.
• Food Additive (Anti-caking Agent): Used as additive E536 to prevent clumping in table salt and other powdered food products.
• Metallurgy: Employed in metal surface treatment processes, including case hardening of steel and as a component in electroplating baths.
• Chemical Synthesis: Acts as a key intermediate for producing other cyanide compounds and complexing agents.
• Analytical Chemistry: Utilized as a reagent for the detection and determination of various metal ions, particularly iron and copper.
• Photography: Historically used in certain toning and bleaching processes in photographic development.

Basic Information

Product Name	Potassium Ferrocyanide Trihydrate
CAS No.	14459-95-1
Molecular Formula	K4Fe(CN)6 · 3H2O
Molecular Weight	422.39 g/mol
Synonyms	Potassium hexacyanoferrate(II) trihydrate; Yellow prussiate of potash trihydrate; Tetrapotassium hexacyanoferrate trihydrate; Ferrate(4-), hexakis(cyano-κC)-, potassium (1:4), trihydrate; E536; K4[Fe(CN)6]·3H2O; Potassium ferrocyanide yellow.
EINECS	238-696-8 (for the anhydrous form)

Quality Control

Our Potassium Ferrocyanide Trihydrate is manufactured under strict quality control protocols to ensure batch-to-batch consistency and reliability. Production adheres to relevant industry standards, including Food Chemical Codex (FCC) specifications for food-grade material. Each batch is supported by a comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles, available upon request to support your quality assurance processes.

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 acids and strong oxidizing agents. The product is hygroscopic (moisture-sensitive); ensure containers are sealed after use to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Yellow crystals or crystalline powder
Identification (IR)	Conforms
Assay (K4Fe(CN)6·3H2O)	≥ 99.0%
Water Insoluble Matter	≤ 0.01%
Chloride (as Cl)	≤ 0.01%
Sulfate (as SO4)	≤ 0.01%
Heavy Metals (as Pb)	≤ 10 ppm
Loss on Drying	11.0 - 13.0%

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