What Is Yellow Flakes Sodium Sulfide 60? Specifications, Uses, and Buying Considerations
What Is Yellow Flakes Sodium Sulfide 60? Specifications, Uses, and Buying Considerations
Yellow Flakes Sodium Sulfide 60 is an industrial sodium sulfide product supplied in yellow flake form with a nominal sodium sulfide content of 60%. Buyers commonly use it in mineral processing, leather processing, pulp and paper, textile and dye production, and selected water-treatment processes. The number “60” generally refers to the stated active sodium sulfide concentration, while the exact assay, moisture, iron, insoluble matter, and packaging specifications must be confirmed in the supplier’s technical data sheet and certificate of analysis.
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At Songyi, I treat this product as a specification-driven industrial chemical rather than a one-size-fits-all commodity. Its suitability depends on the process chemistry, required purity, handling equipment, delivery regulations, and final application. In this guide, I explain what Yellow Flakes Sodium Sulfide 60 is, how it works, where it is used, and what I recommend checking before placing a B2B order.
Key Takeaways
- Yellow Flakes Sodium Sulfide 60 is a yellow flake-form sodium sulfide product with a nominal 60% active content.
- Its principal functions include sulfide conversion, metal-ion precipitation, reducing action, and assistance in breaking down sulfur-containing or protein-related materials.
- Important purchasing factors include assay, moisture, iron content, water-insoluble matter, flake size, packaging, documentation, and shipping conditions.
- Buyers should match the grade to the process instead of selecting only by price or nominal concentration.
What Is Yellow Flakes Sodium Sulfide 60?
Sodium sulfide is an inorganic sulfide compound commonly represented by the formula Na2S. Commercial material may contain water of crystallization and minor process-related components, so the product’s commercial specification is more important than the formula alone. In “Sodium Sulfide 60,” the figure 60 usually indicates approximately 60% sodium sulfide content on the supplier’s stated test basis.
The material is typically supplied as yellow to yellowish flakes. Color can vary with manufacturing route, hydration state, impurities, and storage conditions, so color by itself should not be used as the only quality criterion. Buyers should review the assay method and complete specification sheet before comparing products from different suppliers.
Why Is It Supplied as Flakes?
Flakes are convenient for industrial handling, weighing, storage, and controlled dissolution. Their larger form can reduce dust compared with some powdered materials, although sodium sulfide flakes still require appropriate ventilation and personal protective equipment. Flake size and uniformity may affect feeding behavior and dissolution speed, particularly in automated or continuous processes.
Core Functions and Chemical Behavior
Sodium sulfide provides sulfide ions when dissolved in water. These ions can react with certain metal ions to form metal sulfides, which is one reason the product is important in mineral processing and selected wastewater-treatment applications. The reaction outcome depends on pH, temperature, concentration, competing chemicals, residence time, and the composition of the process stream.
In some industrial systems, sodium sulfide also acts as a reducing or sulfurizing agent. In leather processing, it helps loosen hair and other keratinous materials during dehairing operations. In chemical manufacturing, it can serve as a sulfur source or reaction reagent, but the required purity and impurity limits may differ significantly from those used in ore processing.
Common Application Scenarios
Mining and Mineral Processing
Mining operations may use sodium sulfide in flotation and selective separation systems involving sulfide minerals or metal-bearing ores. It can help modify mineral surfaces and influence the interaction between minerals and flotation reagents. The correct dosage cannot be selected from the product name alone; it must be established through process testing because ore mineralogy and water chemistry strongly affect performance.
Leather Processing
Leather manufacturers use sodium sulfide in hair removal and hide preparation. It can support the breakdown and loosening of hair while working with other process chemicals. Because the process is sensitive to concentration, contact time, temperature, and alkalinity, buyers should confirm whether they need a general industrial grade or a specification with tighter impurity and consistency requirements.
Pulp, Paper, Textile, and Dye Production
Sodium sulfide may be used in selected pulping, dyeing, sulfur-dye, and chemical synthesis processes. Its value in these applications comes from its sulfide chemistry and ability to participate in reducing or sulfur-based reactions. The precise grade depends on whether trace metals, insoluble matter, or color could affect the final product.
Water and Wastewater Treatment
Some treatment systems use sodium sulfide to convert dissolved metals into less soluble metal sulfides for subsequent separation. This approach requires careful control because excess sulfide can remain in treated water and may create hazardous hydrogen sulfide under acidic conditions. A qualified process engineer should define dosing, pH control, gas monitoring, and emergency procedures.
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Types and Material Options
Sodium sulfide is available in different commercial forms, including flakes, crystals, and sometimes solutions. Yellow flakes are often selected when the buyer wants a dry material with a defined active concentration and practical storage characteristics. A solution may be more suitable for facilities that prioritize direct metering and have compatible liquid storage equipment.
Within flake products, the main differences can include active content, moisture, iron, carbonate, water-insoluble matter, particle size, and color. These factors are not equally important for every application. For example, a mining customer may focus on active content and cost per usable kilogram, while a chemical manufacturer may place greater emphasis on trace impurities and batch-to-batch consistency.
Key Specifications Buyers Should Review
| Specification | Why It Matters | What to Confirm |
|---|---|---|
| Active sodium sulfide content | Determines usable chemical strength and dosing calculations. | Nominal value, test method, and allowable range; “60%” is the central commercial reference. |
| Moisture or hydration | Affects effective concentration, weight calculations, and storage behavior. | Test basis and maximum permitted level. |
| Iron and insoluble matter | May influence color, reactions, filtration, or downstream product quality. | Limits appropriate for the intended process. |
| Flake size | Influences feeding, dissolution, dust control, and handling. | Typical size range and whether screening is available. |
| Packaging | Protects the product from moisture and supports transport handling. | Bag material, liner, net weight, palletization, and labeling. |
For a practical reference, a 25 kg bag is a common industrial packaging format, but packaging is not universal and should be confirmed before quotation. Larger bags or customized packing may be available depending on order volume, destination, and transport requirements. I recommend comparing products using active chemical delivered per metric ton rather than comparing only the nominal price per bag.
Buying Considerations for B2B Purchasers
Match the Grade to the Process
First, define the application and the process sensitivity. Ask whether the product will contact ore, hides, wastewater, dyes, pulp, or another chemical intermediate. Then identify the impurity limits, dissolution requirements, dosage range, and safety controls that your plant actually needs.
Request Complete Technical Documents
A reliable inquiry should include a current technical data sheet, safety data sheet, packing details, storage instructions, and a batch-specific certificate of analysis when available. The certificate should identify the lot number and test results rather than presenting only a general brochure specification. I also recommend confirming the applicable transport classification and import documentation for the destination country.
Evaluate Storage and Handling
Sodium sulfide should be kept dry, sealed, and away from incompatible acids and moisture-sensitive conditions. Acid contact can release hydrogen sulfide gas, which is toxic and requires strict process controls. Your facility should use suitable ventilation, protective equipment, written handling procedures, and trained personnel before receiving the material.
Consider Supply Reliability
Price is only one part of the purchasing decision. Buyers should compare minimum order quantity, production capacity, lead time, loading schedule, packaging consistency, inspection arrangements, and communication quality. A supplier that can clarify specifications before production may reduce the risk of receiving material that is technically compliant but unsuitable for the actual process.
How Songyi Supports Industrial Buyers
Songyi supplies Yellow Flakes Sodium Sulfide 60 for industrial and international B2B requirements. I can help buyers review the intended application, confirm available product specifications, discuss packaging options, and prepare commercial information for evaluation. Where the application is sensitive, I recommend starting with a documented sample or trial order before scaling to regular shipments.
Our support is focused on clear communication and specification alignment. We do not assume that one grade is appropriate for every industry, so I encourage buyers to provide their target assay, impurity limits, packaging preference, destination, and estimated annual demand. This information allows the quotation and technical discussion to be more useful than a generic price offer.
Conclusion: Is Yellow Flakes Sodium Sulfide 60 Right for Your Application?
Yellow Flakes Sodium Sulfide 60 is a dry, yellow flake-form industrial sodium sulfide product with a nominal 60% active content. It can be suitable for mineral processing, leather dehairing, selected pulp and dye processes, chemical manufacturing, and controlled wastewater-treatment applications. Its actual suitability depends on verified specifications, process conditions, safe handling capability, and supply requirements.
The next step is to define your application and request the complete specification, safety documentation, packaging details, and commercial terms. Send Songyi your required quantity, destination, target specifications, and intended use so I can help you evaluate the appropriate supply option. A careful comparison at the specification stage can support safer handling, more predictable processing, and better long-term purchasing decisions.
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The Yellow Flakes Sodium Sulfide 60, a specific grade of Sodium Sulfide Flakes, is widely utilized in various industrial applications, including paper manufacturing and water treatment processes, due to its excellent ability to act as a reducing agent while also playing a crucial role in the pulp and textile industries, thereby enhancing efficiency and productivity in these sectors.
The Yellow Flakes Sodium Sulfide 60, known for its excellent solubility and efficiency, is a highly sought-after form of Sodium Sulfide Flakes used in various industrial applications, including the manufacturing of paper, textiles, and the treatment of wastewater, where its ability to reduce metal ions proves invaluable, thereby enhancing both environmental and production processes while ensuring safety and effectiveness in handling.
Yellow Flakes Sodium Sulfide 60 is a high-quality form of Sodium Sulfide Flakes that is commonly utilized in various industrial applications, including paper manufacturing, leather processing, and water treatment, due to its effective reducing properties and ability to remove impurities; its yellow flakes ensure easy handling and precise measurements, making it a preferred choice among manufacturers looking for efficient and reliable chemical solutions.
Yellow Flakes Sodium Sulfide 60, a specific form of Sodium Sulfide Flakes, is widely utilized in various industrial applications, particularly in the textile and leather industries, where it serves as a crucial chemical agent for dyeing and tanning processes, thereby enhancing the quality and durability of the final products while also contributing to environmental sustainability by facilitating the removal of harmful impurities.
The Yellow Flakes Sodium Sulfide 60, a specific grade of Sodium Sulfide Flakes, is widely utilized in various industrial applications, including the production of dyes, leather processing, and as a reducing agent, showcasing its versatility and importance in chemical manufacturing, while its vibrant yellow color indicates the presence of a specific concentration that meets quality standards necessary for effective use in these applications.

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