Sodium Ferrocyanide CAS 13601-19-9
Factory wholesale Sodium Ferrocyanide CAS 13601-19-9
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- Purity:99.8%
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Name: Sodium Ferrocyanide
CAS: 13601-19-9
MOQ: 1KG
Directory Guidance on Sodium Ferrocyanide
Chemical Structure
Basic Info:
| Melting Point | 82°C -10H₂O |
| Density | 1.458 |
| Solubility | insoluble in organic solvents |
| Form | yellow monoclinic crystals |
Sodium Ferrocyanide Introduction:
Sodium Ferrocyanide, chemical name Sodium Ferrocyanide decahydrate, molecular formula Na₄[Fe(CN)₆]·10H₂O, is a light yellow monoclinic crystal or powder solid. Its crystal structure contains four sodium ions, one ferric cyanide ion and ten crystal water molecules. This unique structure gives it good water solubility and chemical stability.
At room temperature, Sodium Ferrocyanide can be dissolved in about three times the mass of water, and the solution is neutral or weakly alkaline, but it is easy to decompose to produce hydrocyanic acid under acidic conditions, so it must be strictly avoided from contact with strong acid during storage and use. As an important member of the ferrocyanide family, it has a history of more than 100 years of application in the industrial field. Its production process is mainly achieved through the double decomposition reaction of sodium cyanide and ferrous sulfate under specific conditions, and the finished product is obtained through crystallization, centrifugation, drying and other steps.
Chemical properties aside, the coordination structure between cyanide and iron ions in Sodium Ferrocyanide molecules is highly stable, making its molecules resilient against high temperature or oxidative environments and maintaining structural integrity in high-temperature metallurgy and material processing applications. Due to forming stable complexes with iron ions that do not release free cyanide easily, its toxicity is considerably less than free cyanide; nevertheless, strict safety operating procedures must still be observed during industrial applications in order to avoid accidental exposure or ingestion of free cyanide itself.
Physical properties of Sodium Ferrocyanide include its density being 1.46 g/cm3, its melting point being 435 (loss of crystal water), and decomposability at higher temperatures. While its crystals tend to be stable when exposed to dry air for extended periods, their crystals can absorb moisture and agglomerate when exposed to humid environments, so industrial products are typically packaged using double-layer sealed packaging in order to extend shelf life and prolong shelf life. Furthermore, its spectrum analysis shows characteristic absorption peaks within ultraviolet-visible light range used for quantitative detection in analytical chemistry fields such as analysis.
With the development of modern industrial technology, the preparation process of Sodium Ferrocyanide continues to be optimized. At present, mainstream manufacturers generally adopt continuous production equipment, which can stabilize the product purity at more than 99% by precisely controlling the reaction temperature, pH value and material ratio. Some high-end products also use recrystallization technology to further remove trace impurities to meet the needs of electronic or pharmaceutical grade applications. In the quality control link, in addition to conventional chemical titration, advanced detection methods such as X-ray diffraction (XRD) and inductively coupled plasma (ICP) are widely used in crystal analysis and trace metal detection.
Nature and Specifications:
| Item | Specification |
| Product Name | Sodium Ferrocyanide |
| CAS No. | 13601-19-9 |
| Appearance | Powder |
| Shelf Life | 2 years |
| Packing | As Your Requirements |
| Color | yellow monoclinic crystals, crystalline |
| Water Solubility | soluble |
| Merck | 14,8616 |
Product service:
- Certificate Of Analysis (COA)
- Material Safety Data Sheet (MSDS)
- Route of synthesis (ROS)
- Method of Aanlysis (MOA)
- Nuclear Magnetic Resonance (NMR)
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- Factory audit
The Application Situation Of Sodium Ferrocyanide
In the metallurgical industry, Sodium Ferrocyanide is mainly used as a metal surface treatment agent and mineral flotation agent. Its ferric cyanide ions can form stable complexes with a variety of metal ions. This property is widely used as a plating solution stabilizer in the electroplating process.
In the field of non-ferrous metal smelting, it is used as a leaching aid for metals such as copper and zinc to accelerate the decomposition of minerals through complexation. Production data from a large steel company shows that the nitriding process of adding 0.05% of this product can increase the surface hardness by about 15% and reduce energy consumption by 8%.
In the preparation of ceramic glazes, as a flux, it can lower the melting point of the glaze and endow the products with a unique blue and white effect at the same time. The printing ink industry develops anti-counterfeiting inks by taking advantage of their color reactions with specific metal ions. Such products exhibit special fluorescence characteristics under ultraviolet light.
In the field of food additives, Sodium Ferrocyanide is allowed to be used in powdered foods such as table salt as an anti-caking agent. Its mechanism of action is to form a microcrystalline isolation layer on the surface of salt particles to prevent moisture absorption and agglomeration. The International Joint Expert Committee on Food Additives (JECFA) stipulates that its maximum use amount is 10 mg/kg, and it is usually controlled within 5 mg/kg in actual application.
It should be noted that despite the similar names, food-grade Sodium Ferrocyanide and industrial-grade products have significant differences in purity indicators, heavy metal content, etc., and manufacturers must obtain food safety licenses.
Innovative applications in the field of environmental protection in recent years are particularly eye-catching. In industrial wastewater treatment, Sodium Ferrocyanide can be used as an efficient precipitant for heavy metal ions. Experiments show that its removal rate for toxic metals such as lead and cadmium can reach more than 98%, and the treated wastewater meets national emission standards.
In the flue gas desulfurization system, its catalytic effect can improve the absorption efficiency of limestone slurry for sulfur dioxide. The pilot data of an environmental technology company showed that adding 0.1% of the product’s desulfurizer can increase the system’s desulfurization efficiency by 12 percentage points.
In the field of in vitro diagnostic reagents, its color reaction with trivalent iron ions is used to develop serum iron detection kits. However, pharmaceutical-grade products have strict requirements on indicators such as microbial limits and endotoxins, and usually require multiple recrystallization and membrane filtration.
Emerging application directions include new energy material preparation and the electronics industry. In the production of lithium-ion battery cathode materials, Sodium Ferrocyanide can improve the layered structure stability of the material as a precursor.
In the chemical mechanical polishing (CMP) process in semiconductor manufacturing, its addition can effectively adjust the redox potential of the polishing liquid. Patent data from a certain research institute shows that polishing liquid containing this product can reduce the surface roughness of silicon wafers to below 0.2nm.
The Advantages Of Sodium Ferrocyanide
High efficiency is another key factor for Sodium Ferrocyanide to win market favor. At the same addition amount, its metal complexing ability is more than 3 times that of sodium citrate, which means that less dosage is required to achieve the same process effect. In the electroplating process, only a concentration of 0.5g/L is required to achieve plating solution stability, while the dosage of traditional stabilizers usually requires 1.2g/L. This high efficiency not only reduces the cost of raw materials, but also reduces the pressure of subsequent wastewater treatment. The cost analysis report of an electroplating company shows that after switching to Sodium Ferrocyanide, the stabilizer cost per ton of plating solution has dropped by 42%.
Multifunctionality has broadened the application boundaries of Sodium Ferrocyanide. The same product can not only participate in high-temperature reactions as a metallurgical additive, but also play a physical anti-caking role in food processing. This cross-field application capability is rare in inorganic chemicals. The sodium ions and ferric cyanide ions in its molecular structure can act with different substances respectively. For example, in wastewater treatment, sodium ions promote colloid coagulation, while ferric cyanide ions specialize in heavy metal precipitation. This dual action mechanism makes it outstanding in the treatment of complex systems.
Safety and environmental protection characteristics are in line with the development trend of modern industry. Although it contains cyanide groups, Sodium Ferrocyanide does not release free hydrogen cyanide under normal use conditions, and its acute oral toxicity (LD50) is greater than 5000mg/kg, which is a practical non-toxic substance. It is listed as a low-risk chemical in both the EU REACH regulations and my country’s “Environmental Management Measures for New Chemical Substances”. Compared with traditional cyanide, its environmental residual risk is reduced by more than 90%, which makes it more competitive in the context of stricter environmental protection policies.
The economic benefits are reflected in the cost control of the whole life cycle. Although the price per unit mass is slightly higher than some alternatives, its high purity (≥99%) reduces the subsequent processing costs caused by the introduction of impurities. In the field of pigment production, Prussian blue pigment prepared by Sodium Ferrocyanide does not require additional stabilizers, and the comprehensive cost is 30% lower than that of organic pigments. Long-term storage stability (shelf life up to 36 months) also reduces the inventory turnover pressure of enterprises.
The potential for technological innovation provides the driving force for its sustainable development. The particle size of Sodium Ferrocyanide can be controlled below 100nm through nano-processing, and the catalytic activity is increased by 2-3 times after the specific surface area is increased. Composite studies with new materials such as graphene show that its specific capacity as a battery electrode material is increased to 1.8 times that of traditional materials. These cutting-edge explorations indicate that Sodium Ferrocyanide will open up new application space in strategic emerging industries such as new energy and electronic information.
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Related References:
Chemicalbook-Sodium Ferrocyanide
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