Description

Calcium Ferrocyanide is an inorganic salt widely recognized for its utility as a sequestering and anti-caking agent. Its primary commercial value lies in its ability to control metal ion activity and prevent clumping in solid mixtures. This makes it a critical processing aid for manufacturers in the food, industrial, and chemical synthesis sectors who require consistent product flow and stability. We supply high-purity Calcium Ferrocyanide CAS NO 13821-08-4 to meet stringent global quality standards.

Application

• Food Additive (E538): Used as an anti-caking agent in table salt and other powdered food products to ensure free flow.
• Wine Clarification: Acts as a fining agent to remove trace metal ions, such as iron and copper, that can cause cloudiness and instability.
• Pigment & Dye Manufacturing: Serves as a raw material or intermediate in the production of certain iron blue pigments and specialty dyes.
• Chemical Synthesis: Employed as a source of ferrocyanide ions in various inorganic and coordination chemistry applications.
• Industrial Process Aid: Functions as a sequestrant in water treatment and metallurgical processes to control soluble metal concentrations.
• Laboratory Reagent: Used in analytical chemistry for qualitative testing and as a standard in specific methodologies.

Basic Information

Product Name	Calcium Ferrocyanide
CAS No.	13821-08-4
Molecular Formula	Ca2[Fe(CN)6]
Molecular Weight	292.11 g/mol (anhydrous basis)
Synonyms	Calcium hexacyanoferrate(II); Tetracalcium ferrocyanide; Calcium ferrocyanide decahydrate; E538; INS 538; Calcium hexacyanoferrate(4-); Tetracalcium bis(hexacyanoferrate(4-)); Ferrocyanic acid, calcium salt
EINECS	237-508-7

Quality Control

Our Calcium Ferrocyanide is manufactured under a strict quality management system. Each batch is tested to ensure it meets specifications for identity, purity, and relevant heavy metal limits, aligning with standards such as the Food Chemicals Codex (FCC) for food-grade material. A comprehensive Certificate of Analysis (COA) documenting assay, impurity profile, and physical characteristics is provided with every shipment to guarantee traceability and compliance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and must be kept in a low-humidity environment to prevent caking and degradation. Keep away from strong acids.

Specification

Item	Specification
Appearance	Yellowish crystalline powder
Identification (IR)	Conforms
Assay (as Ca2[Fe(CN)6])	Min. 98.0%
Loss on Drying	Max. 1.0%
Water Insoluble Matter	Max. 0.5%
Chloride (as Cl)	Max. 0.1%
Sulfate (as SO4)	Max. 0.1%
Heavy Metals (as Pb)	Max. 20 ppm

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