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Nantong Shengfeng Chemical Co., Ltd. is located in Fengli Town, Nantong City, bordering the Yangtze River to the south and the Yellow Sea to the east. Situated within Shanghai's one-hour economic circle, it enjoys convenient land and water transportation, giving it a significant geographical advantage. The company specializes in producing a series of phosphonates, including phosphonic acid, potassium dihydrogen phosphate, and potassium phosphonate.

Solid Sodium Cyanide
Sodium Ferrocyanide (commonly known as yellow prussiate of soda, with the English name Sodium Ferrocyanide), has a CAS No. of 13601-19-9 (for the decahydrate form). It appears as lemon-yellow monoclinic crystalline powder, is odorless,
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Solid Cyanide
Sodium ferrocyanide (commonly known as yellow prussiate of soda, with the English name Sodium Ferrocyanide), also named sodium hexacyanoferrate(II), is a type of solid cyanide with an EINECS number of 237-081-9.
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Why Choose Us

Rich Experience

We have accumulated 16 years of mature, All products strictly adhere to national standards, ensuring stable and reliable quality.

Sales Market

Our products are exported to South America, North America, Australia, and most parts of Europe, winning unanimous praise from customers both domestically and internationally.

Production Equipment

The production equipment is fully equipped, including 20 reaction kettles, 4 centrifuges, a thermal oil circulating boiler, and a small packaging filling line, which can fully meet the needs of large-scale production and standardized packaging of a series of phosphonate products.

Our Service

We have a professional service team that can provide clients with end-to-end problem solutions. We also support customized formulations with different content specifications and packaging methods based on clients' usage habits and individual needs, maximizing the satisfaction of diverse client requirements.

Common types

We offers the following product introduce：

Solid Sodium Cyanide

Sodium Ferrocyanide (commonly known as yellow prussiate of soda, with the English name Sodium Ferrocyanide), has a CAS No. of 13601-19-9 (for the decahydrate form). It appears as lemon-yellow monoclinic crystalline powder, is odorless, highly soluble in water to form a yellowish-green solution, and insoluble in ethanol. Notably, it should never be mixed with solid sodium cyanide in any handling process, as such a combination may trigger unforeseen chemical reactions.

Solid Cyanide

Sodium ferrocyanide (commonly known as yellow prussiate of soda, with the English name Sodium Ferrocyanide), also named sodium hexacyanoferrate(II), is a type of solid cyanide with an EINECS number of 237-081-9. Its anhydrous form has the molecular formula Na₄[Fe(CN)₆] (molecular weight: 303.91), while the decahydrate form has the molecular formula Na₄[Fe(CN)₆]·10H₂O (molecular weight: 484.06).

Product Specificatio

Solid Cyanide
Item	Specification
Assay (as Na₄Fe(CN)₆·10H₂O)	≥ 98.0%
Water-insoluble matter	≤ 0.1%
Chloride (as Cl⁻)	≤ 0.2%
Sulfate (as SO₄²⁻)	≤ 0.2%
Solid Sodium Cyanide
Item	Specification
Assay (calculated as Na₄Fe(CN)₆·10H₂O)	≥ 99.0%
Water-insoluble Matter	≤ 0.05%
Chloride (Cl⁻)	≤ 0.1%
Sulfate (SO₄²⁻)	≤ 0.1%

Application

Solid Sodium Cyanide

Metallurgy and Electroplating: It is used for the bluing treatment of precision steel components, forming a dense anti-corrosion oxide film. As an effective complexing agent, it is applied in advanced electroplating processes for brass and bronze to ensure uniform and smooth coating layers.

Chemical Pigments: It serves as a key raw material for manufacturing high-purity premium pigments such as Prussian blue, ensuring the color purity and stability of the final products.

Other Industries: It is also suitable for precision chemical experiments in laboratories as a specialized reagent. Additionally, it can be used in high-end leather tanning and in the production of photosensitive materials to enhance product quality.

Solid Cyanide

It is mainly used in the metallurgical industry for the bluing and anti-corrosion treatment of steel. By forming a dense oxide film, it improves the corrosion resistance of steel products. In the electroplating industry, it acts as a complexing agent for zinc and copper ions, facilitating the formation of uniform coatings, and is suitable for low- to medium-grade electroplating and conventional metallurgical processing applications.

Meanwhile, it serves as a basic raw material in the dye and pigment industry for producing general-grade colorants. In addition, it can be used in the standard production processes of leather tanning and photographic light-sensitive materials, as well as in routine laboratory chemical analysis.

Precautions

Storage
Store in a sealed package in a cool, dry and well-ventilated warehouse. Maintain the storage conditions as follows: temperature ≤30℃, relative humidity ≤75%. Keep away from ignition sources, heat, strong acids, strong bases and oxidants. Strictly prohibit mixed storage with food and feed. The shelf life is 6 months.

Transportation
Transport as hazardous goods. Avoid exposure to sunlight, rain and high temperatures. Handle with care during loading and unloading to prevent package damage. The transport vehicle must be equipped with leakage emergency treatment equipment.

Leakage
Isolate the leakage area and wear protective equipment. Cover and collect solid leakage with dry sand; adsorb liquid leakage with vermiculite. Prevent dust from spreading. Wastewater shall be treated by professional institutions.

Exposure
Skin Contact: Rinse the affected area thoroughly with soapy water for 15 minutes.
Eye Contact: Rinse eyes with flowing clean water for 15 minutes and then seek medical attention immediately.
Inhalation: Move the victim to fresh air. Administer oxygen if breathing is difficult.
Ingestion: Rinse the mouth immediately, drink a sufficient amount of warm water to induce vomiting, and seek medical treatment promptly.

Fire
Extinguish the fire with dry powder, carbon dioxide or foam. Do not directly spray water on molten substances. Firefighters must wear full-body fire suits and gas masks.

Package & Delivery

Regular Packaging: 25 kg per fiber drum (lined with plastic bag)
Customized Packaging: 1 kg, 5 kg, 25 kg and other specifications available according to customer requirements

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FAQ

Q: What is solid sodium cyanide and where is it primarily used?

A: Solid sodium cyanide (NaCN) is a highly reactive inorganic compound widely used in gold and silver extraction, electroplating, and chemical synthesis. It is valued for its strong complexing ability with metal ions.

Q: What is meant by “solid cyanide” in industrial supply?

A: “Solid cyanide” typically refers to cyanide salts in solid form, most commonly sodium cyanide or potassium cyanide, supplied for metallurgical, electroplating, and chemical manufacturing applications.

Q: How does solid sodium cyanide differ from potassium cyanide?

A: Both function similarly as cyanide sources, but sodium cyanide is generally more cost-effective and widely used in mining, while potassium cyanide is often preferred in specific electroplating applications due to solubility characteristics.

Q: What are the main applications in the metallurgical industry?

A: Solid sodium cyanide is primarily used in precious metal recovery processes, such as gold cyanidation, where it forms soluble complexes with gold and silver to enable efficient extraction.

Q: How is it used in electroplating?

A: It acts as a complexing agent for metal ions such as copper, zinc, and gold, helping to produce uniform, adherent, and high-quality plating layers.

Q: Is it used in pigment manufacturing?

A: Yes, it serves as a precursor in the production of certain pigments, including iron-based compounds such as Prussian blue, where purity and reaction control are critical.

Q: Are there laboratory applications?

A: It may be used as a specialized reagent in controlled laboratory environments, strictly under regulated conditions with appropriate safety infrastructure.

Q: What purity levels are typically available?

A: Industrial-grade solid sodium cyanide is commonly supplied at ≥98% purity, with tight control over moisture content and impurities to ensure consistent performance.

Q: What physical forms are available?

A: It is typically supplied as briquettes, pellets, or flakes to improve handling safety and reduce dust generation during transport and use.

Q: What quality documentation should suppliers provide?

A: Standard documentation includes a Certificate of Analysis (COA), Safety Data Sheet (SDS), Technical Data Sheet (TDS), and regulatory compliance declarations.

Q: What are the key hazards associated with solid cyanide?

A: Cyanides are acutely toxic and can release hydrogen cyanide gas upon contact with acids or moisture. Strict handling protocols and trained personnel are essential.

Q: What personal protective equipment (PPE) is required?

A: Recommended PPE includes chemical-resistant gloves, protective clothing, eye/face protection, and appropriate respiratory protection where exposure risk exists.

Q: How should solid sodium cyanide be stored?

A: It should be stored in tightly sealed containers in a cool, dry, and well-ventilated area, away from acids, moisture, and incompatible substances.

Q: What emergency measures should be in place?

A: Facilities must have cyanide antidote kits (where permitted), gas detection systems, emergency showers, and trained response personnel in accordance with local regulations.

Q: What regulations apply to the transport of solid cyanide?

A: It is classified as a hazardous material and must be transported in accordance with regulations such as ADR (Europe), DOT (USA), and IMDG (sea transport).

Q: What certifications should a reliable supplier have?

A: Suppliers should comply with ISO 9001 and relevant environmental and safety standards, as well as regional regulatory frameworks such as REACH.

Q: Are there restrictions on purchasing cyanide products?

A: Yes, buyers are typically required to provide end-use declarations and demonstrate compliance with local safety and regulatory requirements.

Q: What packaging options are available for bulk orders?

A: Packaging typically includes sealed steel drums, IBC containers, or specially designed containers that prevent moisture ingress and ensure safe handling.

Q: What is the typical lead time for supply?

A: Lead times generally range from 2 to 6 weeks depending on order volume, regulatory clearance, and logistics arrangements.

Q: What factors should buyers consider when selecting a supplier?

A: Key considerations include product consistency, regulatory compliance, safety record, packaging quality, logistics capability, and technical support for safe handling and application.

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