Sodium Sulfide Price per Ton — Na₂S 60% Flakes, FOB Türkiye & UAE

Table of Content
Price basis · · valid 1 week

Sodium Sulfide Price per Ton
Na₂S 60% Flakes, FOB

Sodium sulfide 60% flake is USD 890 per metric ton FOB, and the low-iron grade at ppm Fe ≤ 10 is USD 940 per MT — ex Jebel Ali or Mersin, 25 kg bags, one 20ft container of about 20 MT. Below: both prices converted to per kg, per bag and per container, plus the calculation that shows which grade is actually cheaper for your process. Updated . Valid for 1 week.

Grades
Standard · Low iron
Assay
60% active Na₂S
Packing
25 kg bags
MOQ
20 MT · 1×20ft
HS / CAS
2830.10 · 1313-82-2
Dangerous goods
UN 1849 · IMDG 8
Validity
1 week
Request a firm quotation Calculate my order
  • 20 MTMOQ · 1×20ft
  • 7–10 daysLoading ex stock
  • Fe ≤ 10 ppmGuaranteed grade
  • 24 hQuote turnaround
Price list

Sodium sulfide price per ton, per kg and per container

Two grades, one chemistry. Both are 60% active Na₂S flake in 25 kg bags; the difference is the guaranteed iron limit. Every figure below is derived from the per-ton price — 1 MT = 1,000 kg = 40 bags, and one 20ft container loads about 20 MT.

Sodium sulfide FOB prices by grade and unit
Grade USD / MT USD / kg USD / 25 kg bag USD / 20ft FCL USD / kg active Specified for
Na₂S 60% flake — standard $890 $0.89 $22.25 $17,800 $1.48 Mining flotation, Kraft pulping, sulfur dyeing, effluent treatment, synthesis
Na₂S 60% flake — low iron, Fe ≤ 10 ppm $940 $0.94 $23.50 $18,800 $1.57 Leather dehairing and any process where iron staining of the end product matters

← Swipe the table sideways to see every column.

What FOB does and does not include

FOB covers the goods loaded on board at Jebel Ali or Mersin. It excludes ocean freight, marine insurance, destination terminal handling, import duty and inland delivery.

Sodium sulfide moves as UN 1849, IMDG Class 8, so dangerous-goods surcharges apply and vary by carrier and route — a CFR number cannot be estimated from a standard freight table. Send your destination port and CFR, CIF, CPT or DAP is calculated properly.

Market context — September 2026

What is moving the sodium sulfide price this quarter?

While Na₂S does not have a published daily index, its cost base is shaped by sulfur, energy, and chlor-alkali operating rates. Here is the snapshot for Q3 2026.

📊 Current drivers

Sulfur prices have remained firm through August 2026, supported by tighter global refined sulfur supply from lower refinery runs. This directly feeds the sodium sulfide cost curve, because sulfur is the primary raw material. Energy costs in the Gulf and Turkiye have held steady after the summer peak, keeping production economics predictable.

Demand from the leather and textile sectors in South Asia and Africa remains consistent, while mineral flotation consumption in Latin America and Australia has softened slightly. The net effect is a balanced market with no sharp upward pressure — which is why the FOB levels on this page have held since mid-August.

Outlook for the next 30–60 days: We expect the standard grade to trade in a $880–$910/MT range and the low-iron grade between $930–$960/MT, assuming no major sulfur supply shock or freight spike. Buyers committing to quarterly volumes at current levels are well positioned.

Procurement tip: With the market range-bound, covering 60–70% of your next 3 months' requirement now and leaving the rest to spot usually outperforms trying to time a seasonal low. Request a multi-container quote to see the volume advantage.
Choosing between them

Is the low-iron grade worth $50 a ton to you?

The premium is $50/MT, about 5.6% — $1,000 on a 20 MT container. Whether that is money well spent depends entirely on what iron does to your end product.

Buy low iron (Fe ≤ 10 ppm) if…

  • You are a tannery — iron above roughly 15 ppm leaves dark iron-sulfide staining on finished crust that cannot be corrected without downgrading the hide
  • You produce light or pastel shades where any discoloration is visible
  • Your customer's specification names an iron limit in ppm
  • One rejected hide batch costs you more than the $1,000 per container premium — which, for most tanneries, it does

Standard grade is enough if…

  • You run mineral flotation — sulfidization does not care about trace iron
  • You dose into Kraft white liquor, where the recovery cycle already carries metals
  • You precipitate heavy metals from effluent — the iron ends up in the sludge either way
  • You use it as a reducing agent in synthesis and your own specification sets no iron limit
Not sure? Send your finished-product specification or the COA you buy against today. If iron is not named in either, the standard grade at $890 is almost certainly the right call and the $50 is not buying you anything.
Order value

Work out what your shipment costs

Pick the grade, enter your tonnage, and the FOB goods value is calculated with containers required, bag count and the cost of the active Na₂S you actually consume.

Grade
MT

Based on 25 kg bags at 20 MT per 20ft container. FOB goods value only — freight, insurance, duty and destination charges are quoted separately against your port.

Containers required1 × 20ft
Bags of 25 kg800
Active Na₂S delivered12,000 kg
Cost per kg active$1.48
FOB goods value$17,800

Indicative for budgeting. Send tonnage, grade and destination port for a firm, contractable offer with the TDS and COA format attached.

Buying monthly? Put the annual tonnage in your enquiry even if you ship one container at a time. Committed volume is quoted differently from repeated spot loads, and over a year the difference is larger than any single-shipment negotiation.
How to compare offers

The cheapest per ton is not the cheapest per kilogram

Sodium sulfide is bought as tonnage but consumed as active chemical. Two offers at an identical USD/MT can differ by several percent in real cost — which is how a cheap-looking quotation turns expensive by the third container.

Step 1 — convert every offer to active content

One metric ton of 60% flake contains 600 kg of active Na₂S. So:

cost per kg active = price per MT ÷ (assay % × 10)

At $890/MT that is $1.48 per active kilogram; at $940/MT it is $1.57. Run the division with the assay printed on the certificate of analysis, not the nominal grade on the offer sheet — material that assays 58% is about 3.4% more expensive per active kilogram than the same money at 60%.

Step 2 — subtract the tonnage you throw away

Water-insoluble matter is contracted at 12% maximum. At that ceiling, up to 2.4 MT of a 20 MT container is material you pay ocean freight on and then filter out. Price it as waste plus disposal, not as product — and ask every supplier for their insolubles figure in writing.

Step 3 — compare landed, never FOB

Freight, insurance, terminal handling and duty are charged per container, not per ton, so they fall as a per-ton cost on a full load and rise sharply on part loads. Ask for FOB and CFR side by side to your own port; the gap between them is your real decision.

Why some quotations look far cheaper than these

Headline numbers on trading platforms are frequently for a different product: a lower assay, an unstated iron level, higher insolubles, red flake instead of yellow, or a per-ton figure that assumes you accept the shipment without a batch certificate of analysis or inspection.

Before comparing anything, get four things in writing from each supplier — assay minimum, iron in ppm, water-insoluble maximum, and whether a batch COA and pre-shipment inspection are included. Then convert both offers to cost per kilogram of active Na₂S. That is the only comparison that survives contact with a real shipment.

How buyers take it

Three ways to buy — and what changes in each

The prices above are the standard full-container levels. What changes with commitment is not only the number but the schedule, the terms and the priority you get when availability tightens.

Spot container

1 × 20ft · 20 MT
List price$890 or $940 per MT, priced against stock on the day. Valid for 1 week.
  • Fastest route to a first shipment
  • Loading in 7–10 working days ex stock
  • T/T — 30% advance, balance against B/L copy
  • Full document set and batch COA

Repeat buyer

3–5 FCL · 60–100 MT
Quoted on requestVolume booked against a production slot rather than leftover stock.
  • Consistent source, so assay does not drift between shipments
  • Shipment schedule agreed in advance
  • L/C at sight accepted
  • Retained samples for your own QC comparison

Annual contract

6–12 months · 240 MT +
Contract structureFixed or indexed pricing instead of repeated spot exposure.
  • Priority loading when availability tightens
  • Longer price validity, protected from spot swings
  • Extended terms discussed after a shipment history
  • Specification locked in writing for the term
What the price is quoted against

Specification behind both prices

A price without a specification is not a price. These are the contracted limits behind $890 and $940.

Contracted specification of both sodium sulfide grades
Parameter Standard · $890/MT Low iron · $940/MT Method
Na₂S active content60% min60% minTitrimetric
Iron (Fe)Reported on COA≤ 10 ppm guaranteedICP-OES
Sodium sulfite (Na₂SO₃)≤ 2.0%≤ 2.0%Titrimetric
Sodium carbonate (Na₂CO₃)≤ 0.5%≤ 0.5%Titrimetric
Water-insoluble matter≤ 12%≤ 12%Gravimetric
AppearanceFlakeYellow to light amber flakeVisual
Packing25 kg bags25 kg bags—

← Swipe the table sideways to see every column.

CAS
1313-82-2
HS code
2830.10
UN / class
UN 1849 · IMDG 8
MOQ
20 MT · 1×20ft
Loading
Jebel Ali · Mersin
Payment
T/T · L/C · D/P
Shelf life
12–24 months sealed
Documents
COA · SDS · CO · B/L
Inspection
SGS / BV on request

Applications, handling and storage detail sit on the sodium sulfide product page. Chlor-alkali levels are on the caustic soda price page.

Price mechanics

What moves the sodium sulfide price

There is no published index for Na₂S. These are the variables behind the two numbers on this page, and how the levels are maintained.

Cost base

  • Sulfur and soda ash — the feedstocks that set the floor
  • Reduction energy — energy-intensive, so power tariffs feed straight through
  • Origin — plant scale, local demand and export policy differ by country
  • Utilisation — turnarounds tighten availability quickly

Specification

  • Assay — contracted as a minimum, the basis of every honest comparison
  • Iron limit — the $50/MT step between the two grades here
  • Sulfite — a tight limit means fresh stock, not aged inventory
  • Insolubles — the line between product and freight-paid waste

Freight & terms

  • Class 8 surcharges — UN 1849 freight varies by carrier and route
  • Destination — port, transit time and local handling
  • Incoterm — FOB, CFR, CIF and CPT move different cost blocks
  • Payment — L/C and D/P carry bank cost inside the quoted number

How these levels are maintained

  • Basis — FOB Jebel Ali or Mersin, 25 kg bags, full container load
  • Reviewed weekly, and whenever feedstock or freight moves sharply
  • Excludes freight, insurance, duty, inspection and palletising
  • Last reviewed
  • Validity 1 week from the date of enquiry
Getting a firm offer

Six lines in your enquiry, one contractable price back the same day

The two numbers above are list levels for a standard container. These six details turn them into an offer you can open a letter of credit against.

GradeStandard 60% at $890, or low iron Fe ≤ 10 ppm at $940 — and any other limit your specification names.
QuantityTonnage per shipment and expected annual volume. Both, not one.
Destination portNamed discharge port, plus the inland destination if you want a door-to-door comparison.
IncotermFOB, CFR, CIF or CPT. Unsure? Say what you want the number to include and the right term is suggested.
Packing and handling25 kg bags palletised or loose, and whether the receiving warehouse unloads by forklift or by hand.
Schedule and paymentShipment window, spot or repeating, whether SGS or BV inspection is required, and preferred terms — T/T, L/C at sight or D/P.
Send a formal RFQ WhatsApp the desk info@causticsodaco.com
Common questions

Sodium sulfide price — FAQ

As of , Na₂S 60% flake is $890 per metric ton FOB and the low-iron grade (Fe ≤ 10 ppm) is $940 per MT FOB, ex Jebel Ali or Mersin, in 25 kg bags at full container load. Both are firm export levels for one 20ft container of about 20 MT; freight, insurance and destination charges are additional on FOB terms. The quoted price is valid for 1 week.

Divide the per-ton price by 1,000. At $890/MT the standard grade is $0.89 per kg, or $22.25 per 25 kg bag. The low-iron grade at $940/MT is $0.94 per kg, or $23.50 per bag. Export business is priced per ton, so a per-kg figure is a conversion, not a separate offer.

One 20ft container holds about 20 MT — 800 bags of 25 kg. At $890/MT that container is $17,800 FOB; at $940/MT for the low-iron grade it is $18,800 FOB. Ocean freight, marine insurance, duty and destination handling are additional.

$50 per metric ton — $940 against $890, a premium of about 5.6%, or $1,000 on a 20 MT container. Tanneries pay it because iron above roughly 15 ppm leaves dark iron-sulfide staining on finished crust that cannot be corrected without downgrading the hide. For flotation, pulping or effluent treatment the premium usually buys nothing.

One metric ton of 60% flake contains 600 kg of active Na₂S, so the active cost is the per-ton price ÷ 600: $1.48/kg active at $890/MT and $1.57/kg active at $940/MT. Always run it with the assay on the certificate of analysis rather than the nominal grade — a cheaper 58% offer can cost more per active kilogram than a 60% one.

Cheaper headline numbers are usually a different product: lower assay, unstated iron, higher water-insoluble matter, red flake instead of yellow — or a price that assumes no batch certificate of analysis, no inspection and minimal dangerous-goods documentation. Ask every supplier for assay minimum, iron in ppm, insoluble maximum and what documentation is included, then convert both offers to cost per kilogram of active Na₂S before comparing.

Export business is quoted from one full container load — 1×20ft, about 20 MT in 25 kg bags. Smaller LCL trial quantities can be arranged but price higher per ton, because part-load freight, dangerous-goods handling and documentation are spread over less tonnage. Multi-container and contracted annual volume are quoted on request.

FOB covers the goods loaded on board at Jebel Ali or Mersin. CFR adds ocean freight to your destination port; CIF adds marine insurance on top; CPT covers carriage to a named destination place. Na₂S moves as UN 1849 IMDG Class 8, so dangerous-goods surcharges apply and vary by carrier and route — which is why CFR and CIF are quoted per destination rather than from a table.

Both prices are quoted on standard 25 kg bags, the export format. Palletising improves handling but reduces net payload per container, which raises the effective freight cost per ton — so state in your enquiry whether your warehouse needs pallets or unloads loose.

Each offer states its own validity period. The levels on this page are reviewed weekly and are generally valid for 1 week from the date of enquiry. Because the cost base tracks sulfur, energy and ocean freight, validity is short for spot business and longer for contracted annual volume. Re-confirm the price before opening a letter of credit.

Send the specification. Get the contractable number.

Grade, tonnage, destination port and Incoterm — that is all it takes. A firm FOB or CIF quotation comes back with the technical data sheet and the certificate-of-analysis format attached, normally within 24 hours on working days. Valid for 1 week.

Request a firm quotation WhatsApp: +971 50 720 9246