Sodium Sulfide (Na₂S) Supplier
- Molecular formula:
- Na₂S
- Content:
- ≥60%
- Appearance:
- Yellow Flakes
- CAS No.:
- 1313-82-2
- HS Code:
- 28301010
Sodium Sulfide Specifications (Na₂S ≥60%)
| Item | Unit | Content |
|---|---|---|
| Product Name | / | Sodium Sulfide |
| Formula | / | Na₂S |
| CAS No. | / | 1313-82-2 |
| HS Code | / | 28301010 |
| Na₂S Content | % | ≥60 |
| Appearance | / | Yellow flakes |
| Fe Content | ppm | ≤30 ppm / 150 ppm |
| Na₂CO₃ | % | ≤2.0% |
| Water Insoluble | % | ≤0.2% |
| Application | / | Mining flotation, leather, dye and wastewater treatment |
| Documents | / | TDS, MSDS and CoA available on request |
Mining Flotation & Industrial Applications
YuXing sodium sulfide (Na₂S ≥60%) is supplied as industrial yellow flakes for mining flotation, leather dehairing, sulfur dye synthesis and wastewater treatment. Compared with crystalline sodium sulfide nonahydrate, Na₂S flakes provide lower moisture content and easier bulk handling for export customers.
In mining and mineral processing, sodium sulfide is used as a sulfide reagent and flotation modifier for copper, lead, zinc and other sulfide or oxide-sulfide ore circuits. It can support mineral surface sulfidization, improve flotation response and assist process control when matched with the correct collector system.
For broader reagent selection, browse our mining chemicals catalog or contact YuXing for flotation process support.
In a complete flotation reagent scheme, Na₂S may be evaluated together with copper sulfate activator, xanthate collectors and MIBC frother. Reagent selection should be confirmed by ore testing before plant-scale dosing.
How Sodium Sulfide Works in Mining Flotation
In flotation circuits, sodium sulfide can act as a sulfidizing or surface-modifying reagent. It supplies sulfide ions that react with mineral surfaces and metal ions, helping adjust surface chemistry before collector adsorption. This is especially relevant in oxide-sulfide transition ores and circuits where sulfidization is needed before flotation.
Actual performance depends on ore mineralogy, pH, oxidation state, pulp chemistry, dosing point and the selected collector. Dosage should be confirmed by metallurgical testing because excess sulfide can reduce selectivity or depress target minerals.
Sodium Sulfide vs Sodium Hydrosulfide (Na₂S vs NaHS)
| Product | Formula | Typical Use | Selection Note |
|---|---|---|---|
| Sodium Sulfide | Na₂S | Mining flotation, leather dehairing, dye production, wastewater treatment | Strong alkaline sulfide source supplied as yellow flakes. |
| Sodium Hydrosulfide | NaHS | Mining flotation, sulfidization and industrial treatment applications | Hydrosulfide reagent with different dosing behavior and handling requirements. |
If your process requires hydrosulfide dosing rather than sodium sulfide flakes, see the Sodium Hydrosulfide (NaHS) product page.
Industrial Applications
- Mining flotation: sulfide reagent and flotation modifier for selected copper, lead, zinc and oxide-sulfide circuits.
- Leather processing: dehairing and liming support in leather production.
- Dye and chemical manufacturing: sulfur dye synthesis and chemical intermediate production.
- Wastewater treatment: heavy metal precipitation where sodium sulfide treatment is specified.
Packaging, Storage & Documents
YuXing supplies Na₂S yellow flakes in export-standard packaging for bulk international shipment. TDS, MSDS and batch CoA are available for procurement review, customs clearance and quality confirmation. Request available documents through the contact page together with your formal quotation details.
Store sodium sulfide in sealed packaging in a cool, dry and well-ventilated warehouse. Keep away from moisture, acids and incompatible materials, and follow the supplied MSDS for handling, storage and emergency response requirements.
Shipment Photo:
How to Select a Sodium Sulfide Supplier
- Confirm Na₂S ≥60%, Fe content, water-insoluble matter and Na₂CO₃ against your application specification.
- Confirm required batch documents before bulk purchase; TDS, SDS and CoA are coordinated after inquiry or order confirmation.
- Confirm whether your process requires Na₂S or NaHS, because dosing behavior and handling differ.
- Share your application: mining flotation, leather, dye manufacturing or wastewater treatment.
- Confirm packaging, destination port, lead time, document requirements and quotation validity before shipment.
Sulfidization Flotation: Selection and Dosing
Sulfidization restores a sulfide-like surface on selected oxidized minerals before collector addition. Underdosing can leave the surface incompletely activated; overdosing can consume collector, reduce selectivity or depress recovery. Reagent choice, addition point and staged dosage should therefore be established from ore-specific laboratory and plant trials—not copied from another circuit.
For a practical circuit guide, read Sulfidization Flotation with Sodium Sulfide and NaHS. Buyers can also review our mining chemicals and mineral processing supply support.
Na₂S vs NaHS: Procurement Comparison
| Decision factor | Sodium sulfide (Na₂S) | Sodium hydrosulfide (NaHS) |
|---|---|---|
| Sulfide source | Fully sulfidic and more alkaline | Hydrosulfide source with lower alkalinity |
| Typical selection basis | Ore mineralogy, pulp pH and existing reagent scheme | Ore mineralogy, pH control, dosing system and safety plan |
| Process control | Use test-derived dosage and staged addition where required; monitor plant response rather than relying on a universal setpoint. | |
Information Needed for a Formal Quote
- Required product and active-content specification
- Application, ore type and current reagent scheme
- Required quantity, packaging preference and destination port
- Limits for iron, insoluble matter or other critical parameters
- Import, dangerous-goods and batch-document requirements
Packaging and available batch documents depend on the confirmed grade, order and destination. TDS, SDS and CoA are coordinated after inquiry or order confirmation; public file downloads are not provided.
Why Choose YuXing Na₂S
- Stable Na₂S content ≥60% with controlled Fe and water-insoluble levels for dependable industrial performance.
- Uniform yellow flakes for easy handling, dissolution and bulk export packaging.
- Applicable to mining flotation, leather processing, sulfur dye production and wastewater treatment.
- TDS, MSDS, CoA, export packaging support and technical communication through our mining and industrial chemical supply team.
Frequently Asked Questions
What is sodium sulfide used for?
Na₂S is used in sulfide-ore flotation, leather dehairing, sulfur dye synthesis, heavy metal precipitation and chemical intermediate production. YuXing supplies ≥60% sodium sulfide as yellow flakes for these applications.
Is sodium sulfide the same as sodium hydrosulfide?
No. Sodium sulfide is Na₂S, while sodium hydrosulfide is NaHS. They are related sulfide reagents but have different chemistry, dosing behavior and handling requirements.
Is sodium sulfide used as a sulfidizing agent in flotation?
Yes. Sodium sulfide can be used as a sulfidizing or surface-modifying reagent in selected flotation circuits. The correct dosage and dosing point should be confirmed by ore testing.
What Na₂S content does industrial sodium sulfide require?
Industrial applications typically require Na₂S ≥60% with controlled Fe and water-insoluble levels. YuXing can provide CoA verification for supplied batches.
What packaging form is available?
YuXing supplies Na₂S as yellow flakes in export-standard packaging suitable for bulk shipment to mining, leather and chemical industry customers.
Can YuXing provide TDS, MSDS and CoA?
Yes. YuXing can provide TDS, MSDS and batch CoA to support technical review, procurement approval and customs clearance.
How should sodium sulfide be stored?
Store sodium sulfide in sealed packaging in a cool, dry and well-ventilated area. Keep away from moisture, acids and incompatible materials, and follow the supplied MSDS.
What is the HS code for sodium sulfide?
The export HS code is 28301010. Confirm final import declaration requirements with your local customs broker before shipment.
How can I get a sodium sulfide quotation?
Submit your application, quantity, destination port and packaging preference through the contact page. YuXing will provide a formal quotation and available technical documents.
Request a Quote
If you need sodium sulfide Na₂S ≥60% yellow flakes for mining flotation, leather processing, dye manufacturing or wastewater treatment, contact YuXing with your required Na₂S content, quantity, destination port and packaging requirements. Our team will provide a quotation, CoA sample and technical support.
Product Information Notice
- The values shown are typical reference information and are not a guaranteed sales specification. Final specifications are subject to the confirmed product, grade and batch COA.
- Packaging, transport method and hazard classification must be confirmed according to product grade, order quantity, destination regulations, shipping route and the current SDS.
- TDS, SDS/MSDS and COA files are provided according to product, batch and destination requirements. Public documents should not be treated as final delivery documents unless issued for the current batch.
- This page is for procurement discussion and technical selection reference only. It does not replace safety, regulatory, process design or site operating advice. Users must follow local regulations and the latest SDS.
