Sodium Sulfide Supplier | Na₂S 60% Yellow Flakes – Dubai & Turkey Export
What Is Sodium Sulfide (Na₂S)?
Sodium sulfide — also spelled sodium sulphide in British usage — is an inorganic alkali sulfide with the molecular formula Na₂S and CAS number 1313-82-2. In commercial form, it is supplied as the hydrated salt Na₂S·9H₂O, yielding 60% active Na₂S content in yellow-to-amber flakes. Its defining properties are strong alkalinity (pH 11–13 in solution), powerful reducing action, and a high affinity for heavy metals and sulfur-deficient substrates — making it chemically irreplaceable across leather processing, mining flotation, Kraft pulping, and industrial wastewater treatment.
As a dedicated Sodium Sulfide Supplier operating from Turkey and the UAE, SUHA International has developed deep expertise in the specific grade requirements, packaging tolerances, and hazardous-goods logistics that large-volume industrial buyers demand. We do not resell third-party stock. Our Na₂S is sourced directly from ISO-certified manufacturers, inspected in-house, and shipped under full documentation control — so your production line never faces a quality surprise at customs clearance.
📊 Market Insight (2026): The global sodium sulfide market is projected to grow at a CAGR of 3.8–4.5% through 2030, driven by leather industry expansion in South and Southeast Asia, accelerating mineral flotation activity in sub-Saharan Africa, and rising Kraft pulp demand from Vietnam, Indonesia, and South America. Buyers in these growth corridors are actively consolidating their sodium sulphide supply chains around dual-origin exporters to mitigate single-source risk.
Source: Global Chemical Market Reports, Mordor Intelligence, 2025–2026
Technical Specifications — Na₂S 60% Industrial Flakes
| Parameter | Specification | Test Method | Notes |
|---|---|---|---|
| Chemical Formula | Na₂S / Na₂S·9H₂O | — | Anhydrous / Hydrated commercial form |
| CAS Number | 1313-82-2 | — | — |
| Na₂S Active Content | 60 ± 2% | Titrimetric | Guaranteed per batch, COA included |
| Na₂SO₃ (Sulfite) | ≤ 2.0% | ISIRI-6135 | — |
| Na₂CO₃ (Carbonate) | ≤ 0.5% | ISIRI-6135 | — |
| Fe (Iron) | ≤ 10 ppm | ICP-OES | Critical for leather tannery grade |
| Insoluble Content | ≤ 12% | Gravimetric | — |
| Appearance | Yellow to light amber flakes | Visual | Darker color = higher iron; our spec ensures pale yellow |
| Bulk Density | ~1,600 kg/m³ | ISO 758 | — |
| Melting Point | ~92 °C (Hydrated) / ~1,175 °C (Anhydrous) | — | — |
| pH (1% solution, 25 °C) | 11.0 – 13.0 | pH Meter | Strongly alkaline |
| Solubility in Water (20 °C) | ~180 g/L | — | Forms clear alkaline solution |
| UN Number | UN 1849 | IMDG Code | Hazard Class 8 — Corrosive |
| HS Code | 2830.10 | Harmonized System 2022 | Sodium sulfides (inorganic sulfides, metal) |
| Shelf Life | 12 – 24 months (sealed) | — | Sealed away from air and moisture |
★ Full Technical Data Sheet (TDS) and Safety Data Sheet (SDS/MSDS) supplied with every order. Available on request prior to ordering.
Where Is Sodium Sulphide Used?
Understanding your production process is central to how we operate as a Sodium Sulfide Supplier. Na₂S and sodium sulphide are used interchangeably in global trade, referring to the same compound. Below we outline the primary industries we serve and the precise role Na₂S plays in each — along with the complementary chemicals from our portfolio that complete your process.
Leather Dehairing — Beam House
The global leather industry accounts for roughly 60% of industrial Na₂S consumption. Sodium sulphide cleaves the disulfide bonds in keratin, dissolving hair at the follicle level without damaging the hide grain. For tanneries, iron content is the critical variable — our guaranteed ≤10 ppm Fe specification prevents iron staining on finished crust leather, protecting the premium end value of every hide.
Mining & Mineral Flotation
In extractive metallurgy, Na₂S sulfidizes the oxidized surface of lead, copper, zinc, and gold-bearing minerals, rendering them responsive to xanthate collectors in froth flotation circuits. Frequently used in combination with Soda Ash (Na₂CO₃) for pH conditioning. We supply both, enabling single-source procurement for mining operations.
Kraft Pulp & Paper Production
Sodium sulphide is combined with Caustic Soda (NaOH) to form "white liquor" — the cooking liquor for the Kraft process. It selectively breaks lignin ether bonds while preserving cellulose chains, producing high-tensile unbleached pulp. Kraft mills typically require consistent Na₂S purity and low sulfite impurity for stable cooking performance.
Chemical Synthesis & Wastewater Treatment
Na₂S is the preferred reagent for precipitating dissolved heavy metals (Pb²⁺, Cu²⁺, Ni²⁺, Cr³⁺, Zn²⁺) as insoluble metal sulfides in industrial effluent treatment. It is also a key reducing agent in the synthesis of specialty chemicals, dye intermediates, and rubber processing auxiliaries. Hydrogen Peroxide is often used downstream for oxidation polishing after Na₂S precipitation.
Textile — Sulfur Dye Reduction
Na₂S reduces insoluble sulfur dye pigments to their soluble leuco form, allowing deep penetration into cotton and blended fabrics before re-oxidation fixes the color. After dyeing, surfactants such as LABSA and SLES are applied for scouring and finishing.
Rubber Vulcanization
In rubber compounding, Na₂S participates in sulfur-crosslink chemistry that builds the elasticity, resilience, and heat resistance of finished rubber goods. Processing aids such as Polyethylene Wax (PE Wax) are used alongside sodium sulphide in rubber formulations to improve dispersion and surface finish.
Industry Application & Buyer Region Matrix
| Industry | Function of Na₂S / Sodium Sulphide | Grade Required | Key Buyer Regions |
|---|---|---|---|
| Leather Processing | Hair removal — dehairing & liming | 60% ≤10 ppm Fe (tannery grade) | India, Bangladesh, Pakistan, Ethiopia, Tanzania |
| Mining — Flotation | Sulfidization of oxide ore surfaces | 60% standard flakes | South Africa, Zambia, Ghana, DRC, Peru, Chile |
| Kraft Pulp & Paper | White liquor cooking agent — lignin removal | 60% flakes, low sulfite | Indonesia, Vietnam, Brazil, Chile, Finland |
| Chemical Manufacturing | Reducing agent, metal sulfide precipitation | 60% flakes | India, Germany, Turkey, UAE, South Korea |
| Textile — Dyeing | Sulfur dye reduction (leuco form conversion) | 60% standard flakes | Bangladesh, Pakistan, Vietnam, Cambodia |
| Wastewater Treatment | Heavy metal precipitation as metal sulfides | 60% flakes | Global industrial zones |
| Rubber Manufacturing | Vulcanization crosslink chemistry | 60% flakes | Southeast Asia, India, Turkey, Malaysia |
Why Partner with a Sodium Sulfide Supplier Like SUHA?
Large-volume procurement managers and export buyers need more than a price list. They need a Sodium Sulfide Supplier that can guarantee batch consistency, absorb logistics complexity, and maintain supply continuity across 12-month contracts. SUHA International is built specifically for that profile — direct factory access in Turkey, a Dubai consolidation hub, and an in-house QC process that verifies every shipment before it leaves the warehouse. Here is precisely what differentiates our offer:
Packaging Options & Global Export Shipping
As an export-specialist Sodium Sulfide Supplier, we manage the complete logistics chain — from warehouse QC through to destination port clearance support. All Na₂S shipments comply with IMDG Code (UN 1849, Hazard Class 8) for international sea freight. We have active shipping routes to India, Southeast Asia, Africa, South America, and the Middle East from both Jebel Ali and Mersin ports.
25 kg PP/PE Bags
- Multi-layer polypropylene / polyethylene construction
- Inner vapour-barrier PE liner — moisture protection
- Palletized, stretch-wrapped, corner-board reinforced
- 800 bags per 20' FCL = 20 MT per container
- Best for: distributors, tanneries, small chemical plants
150 kg Sealed Iron Drums
- UN-approved sealed steel drums with gasket lid
- Airtight seal — maximum shelf life protection
- Preferred for long transit or remote site storage
- ~133 drums per 20' FCL = 20 MT per container
- Best for: mining operations, chemical plants, offshore use
1,000 kg Jumbo Bags (FIBC)
- Flexible intermediate bulk container — tubular construction
- Inner PE liner, moisture-sealed, lift loops reinforced
- 20 jumbo bags per 20' FCL = 20 MT per container
- Lowest cost-per-MT packaging option
- Best for: large-scale Kraft mills, mining concentrators
Step-by-Step Order Process — From Inquiry to Delivery
Submit Your Inquiry (Day 1)
Contact us via our inquiry form, WhatsApp (+971 50 720 9246), or info@causticsodaco.com. Provide: product grade (Na₂S 60% flakes / sodium sulphide), quantity (MT per order or per month), destination port, preferred incoterm, and application (leather / mining / pulp / other).
Receive Formal Quotation (Within 24 Hours)
A formal commercial offer including unit price (USD/MT), total container value, payment terms, loading port (Jebel Ali or Mersin), estimated transit time, and shipping schedule. Not a ballpark — a bankable quote you can use for import budget approval.
Confirm Order & Payment Terms (Day 2–3)
We accept T/T wire transfer, Letter of Credit (L/C at sight), and D/P (Documents against Payment). Standard for first-time buyers: 30% advance deposit + 70% against copy of Bill of Lading. Long-term contract buyers may qualify for open-account terms after the first two shipments.
Pre-Shipment Inspection — Optional (Day 4–6)
Arrange SGS or Bureau Veritas (BV) inspection at our warehouse before container loading. Full inspection report and COA issued prior to balance payment. Particularly recommended for first orders and L/C-based transactions.
Loading & Vessel Departure (Day 7–10)
Container loaded and shipped from Jebel Ali (UAE) or Mersin (Turkey). Full documentation package — Bill of Lading, Packing List, Commercial Invoice, Certificate of Origin, SDS, COA — issued within 24 hours of vessel departure and transmitted electronically.
In-Transit Tracking & After-Sale Support
Container number and B/L reference shared immediately for real-time vessel tracking. Our export team remains available throughout transit for documentation queries, port agent coordination, customs pre-clearance support, and repeat order planning.
Safe Handling, Storage & Compliance — Na₂S
Any professional Sodium Sulfide Supplier communicates hazard information without ambiguity. Sodium sulphide (Na₂S) is a corrosive, moisture-reactive compound classified under UN 1849 and IMDG Hazard Class 8. Under acidic conditions it releases hydrogen sulfide (H₂S), a highly toxic gas. We provide a complete SDS/MSDS with every order and are available to advise on Na₂S GHS hazard classification per your destination country's regulatory framework.
GHS Hazard Classification
GHS05 — Corrosive (skin & eye damage) · GHS06 — Acute toxicity · GHS09 — Environmental hazard (aquatic). UN Number: UN 1849. IMDG Class 8 (Corrosive). Must be segregated from acids, oxidizing agents, and strong bases during storage and sea transit.
Hydrogen Sulfide (H₂S) Risk
Contact between Na₂S and any acidic material releases H₂S — a flammable, highly toxic gas. H₂S is detectable by smell at 0.5 ppm but causes olfactory fatigue at higher concentrations, meaning the odor disappears despite dangerous levels remaining. Refer to the H₂S PubChem safety profile for full exposure limits.
Required PPE
Chemical-resistant nitrile or neoprene gloves · Splash-proof sealed safety goggles · Full-body chemical-resistant coveralls · Acid-gas cartridge respirator (or SCBA) in enclosed or confined spaces. Emergency eyewash station within 10 seconds of any handling area.
Storage Requirements
Cool, dry, well-ventilated warehouse. Containers sealed airtight — air exposure progressively oxidizes Na₂S to Na₂SO₃ (sodium sulfite) and Na₂S₂O₃ (thiosulfate), reducing active content. Isolate from all acids and oxidizing agents. Properly sealed flakes maintain full specification for 12–24 months. Avoid direct sunlight and heat sources.
Ready to Source Sodium Sulphide in Volume?
Share your required grade, annual volume in MT, destination port, and preferred incoterm. Our export team responds within 24 hours with a formal FOB or CIF price, lead time, and a tailored logistics plan. Partner with a Sodium Sulfide Supplier whose quality you can measure — batch by batch.
Speak Directly With
Our Export Team
We respond to all sodium sulphide and Na₂S inquiries within 24 business hours — typically much faster. For urgent supply requirements or large-volume tender participation, WhatsApp is the fastest channel.
Include in Your Na₂S Inquiry for Fastest Quote
FAQ — Sodium Sulfide Supplier
What is the minimum order quantity (MOQ) for sodium sulfide from SUHA International?
Our standard MOQ is 20 metric tons (1 × 20' FCL) for Na₂S 60% flakes (sodium sulphide). For buyers with regular monthly volumes of 5–20 FCL, we offer preferential long-term pricing and flexible schedule agreements. Trial orders of 5–10 MT may be considered for new buyers in select markets — contact us to discuss your specific situation.
What purity and grade of sodium sulphide do you export?
We export sodium sulphide as 60% active-content yellow flakes in hydrated form (Na₂S·9H₂O), with iron guaranteed at ≤10 ppm per batch — meeting tannery-grade and mining-grade specifications. Every shipment includes a Certificate of Analysis (COA) from an accredited laboratory confirming Na₂S content, iron level (Fe ppm), moisture, sulfite (Na₂SO₃), carbonate (Na₂CO₃), and insoluble matter percentage.
How quickly can SUHA ship sodium sulfide from Turkey or Dubai?
For in-stock product, container loading and shipment can be completed within 7–10 working days from order confirmation and deposit receipt — from either Jebel Ali (Dubai) or Mersin (Turkey). Rush loading within 5–7 days can be accommodated depending on current stock levels. We maintain buffer stock specifically for high-priority buyers.
What documents come with each sodium sulfide shipment?
Every shipment of Na₂S includes: Certificate of Analysis (COA) · Safety Data Sheet (SDS/MSDS) · Commercial Invoice · Packing List · Bill of Lading (B/L) · Certificate of Origin (Turkey or UAE) · IMDG dangerous goods declaration. SGS or Bureau Veritas (BV) pre-shipment inspection certificates are available at buyer's request and cost.
What is the correct HS Code for sodium sulfide?
The correct HS Code for sodium sulfide (Na₂S) under the Harmonized System 2022 is 2830.10 — covering sodium sulfides and polysulfides. Note: the older code 2813.90 applied to non-metal sulfides. We handle all export customs documentation from Turkey and UAE using the correct classification, ensuring smooth import clearance at destination ports.
How should sodium sulphide be stored to protect quality and shelf life?
Store in a cool, dry, well-ventilated warehouse in tightly sealed containers — temperature below 35 °C, away from direct sunlight, acids, and oxidizing agents. Air exposure causes progressive oxidation: Na₂S → Na₂SO₃ (sulfite) → Na₂S₂O₃ (thiosulfate), steadily reducing active content. Properly sealed Na₂S flakes in original packaging maintain full specification for 12–24 months.
Do you ship sodium sulfide to Africa?
Africa is one of our core export markets. We regularly ship Na₂S to South Africa, Nigeria, Kenya, Tanzania, Ghana, Ethiopia, Zambia, DRC (Congo), Mozambique, and Uganda — from both Jebel Ali (UAE) and Mersin (Turkey). Both ports offer strong carrier coverage to East and West African hubs with competitive transit times and freight rates.
Why does iron content matter so much in sodium sulphide for leather tanneries?
Iron contamination above 15–20 ppm in Na₂S causes persistent dark staining on finished crust and upper leather during the beam house dehairing process. The iron bonds with residual sulfur compounds in the hide, producing iron sulfide discolorations that are impossible to remove without further processing. Tanneries specifically source from a Sodium Sulfide Supplier that guarantees ≤10 ppm Fe — which is the specification we deliver on every batch, documented in the COA.
What payment terms do you accept for large sodium sulphide orders?
We accept T/T (wire transfer) — typically 30% advance + 70% against B/L copy — Letter of Credit (L/C at sight) from any prime bank, and D/P (Documents against Payment) through a correspondent bank. For established buyers with a track record of two or more completed shipments, open-account terms on a 30-day net basis may be available for discussion.
