Wholesale Caustic Soda Flakes, Shipped by the Container From Türkiye and the UAE
SUHA International Trading is a caustic soda flakes supplier and exporter for distributors, traders and manufacturing plants. We ship membrane-grade sodium hydroxide flakes 98–99% in 25 kg bags, from one full container load, loading at Mersin (Türkiye) and Jebel Ali (UAE) or by truck from Türkiye — with a certificate of analysis for every lot and a firm, dated quotation within 24 hours. We are a supplier, not a manufacturer: the flakes come from membrane-cell chlor-alkali plants.
Caustic Soda Flakes Supply — the Short Version
In short — caustic soda flakes are solid caustic soda (sodium hydroxide), NaOH, CAS 1310-73-2, cast into thin white flakes at 98–99% NaOH. SUHA International supplies them wholesale in 25 kg PP bags with a PE liner, palletised or packed inside jumbo bags, from a minimum of one full container load (about 25 tonnes in a 20ft container), loading at Mersin or Jebel Ali.
Every shipment travels with a certificate of analysis for its lot, the safety data sheet, certificate of origin and the IMDG Class 8 dangerous-goods declaration. We also supply caustic soda pearls 99% and liquid caustic soda 48–50%.
- Chemical name
- Sodium hydroxide (NaOH)
- CAS / EC number
- 1310-73-2 · 215-185-5
- HS code
- 2815.11 (solid)
- UN number
- UN 1823, Class 8, PG II
- Assay
- 98–99% NaOH, one grade
- Production route
- Membrane cell
- Minimum order
- 1 FCL, 20ft or 40ft
- Packing
- 25 kg bags, palletised or in jumbo bags
- Loading
- Mersin · Jebel Ali · road from Türkiye
Wholesale Caustic Soda Flakes: Price per Ton, per 25 kg Bag and by Volume
Buyers looking for a wholesale price or a factory price for caustic soda flakes are usually comparing quotes on different bases. Wholesale caustic soda flakes are sold per metric ton on an Incoterm — FOB, CFR or CIF — and the per-bag figure follows from that.
| Order | Quantity | 25 kg bags | Pricing |
|---|---|---|---|
| One 20ft container | ≈ 25 MT | ≈ 1,000 | Wholesale price per ton, minimum order |
| One 40ft container | Loaded weight confirmed on the quotation | Per packing list | Wholesale price per ton |
| Three or more containers | ≥ 75 MT | ≥ 3,000 | Priced below a single container |
| Regular contract | Monthly or quarterly shipments | Per schedule | Contract price for the agreed volume |
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Bag, container and price-per-bag calculator
Enter your tonnage and, if you have one, the price per ton from your quotation. Calculated in your browser only.
- 25 kg bags
- 1,000
- 20ft containers
- 1
- Price per 25 kg bag
- —
- Order value
- —add a quoted price
For caustic soda flakes distributors and traders
Distributors, re-packers and traders buy on the same wholesale export terms as plants, from one container. Each lot comes with the certificate of analysis, safety data sheet and technical data sheet you need to resell the flakes in your own market, and we can split a multi-container order between our two loading origins if that shortens your lanes. Current indicative levels: caustic soda flakes price (FOB Mersin) and the wider caustic soda price board.
Caustic Soda Flakes Manufacturer, Distributor or Supplier — Which Do You Need?
Buyers search for a caustic soda flakes manufacturer, distributor or supplier as if they were the same thing. They are not, and the difference decides your minimum order, your paperwork and who carries the risk if a container arrives caked or under assay.
| Source | What they do | Typical minimum | Best for |
|---|---|---|---|
| Manufacturer (chlor-alkali plant) | Produces NaOH by electrolysis and flakes it on site; sells mainly on term contracts | Contract volume, often many containers a month | Large plants buying steadily from one origin |
| Local distributor | Holds stock in your country and sells by the bag or pallet, duty paid | One bag to one pallet | Small users with no import licence |
| Supplier and exporter — SUHA | Buys membrane-grade flakes from manufacturers, packs for export, prepares Class 8 documents and ships FOB, CFR or CIF | One full container load | Importers, distributors and plants buying container loads |
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Where SUHA fits. We do the part a manufacturer usually will not do for a one-container buyer: lot selection against your specification, moisture-barrier packing, the IMDG dangerous-goods paperwork, inspection on request and a choice of two loading origins. If you resell, you are the distributor in your market and we are your import source. More on the company: about SUHA.
Caustic Soda Flakes 98–99%: Specification and TDS
Our caustic soda flakes are one membrane-grade product at 98–99% NaOH. We do not supply a 96% flake grade. If your process needs a guaranteed 99% minimum, choose pearls; if you dose liquid, choose 48–50% solution.
Caustic soda flakes
98–99% NaOH · white flakes · the standard export form for soap, water treatment, pulp, textiles and general chemical use.
This pageCaustic soda pearls
99% minimum · free-flowing beads · low dust for automated feeders; priced below flakes on current offers.
99% NaOH Caustic soda pearls supplierLiquid caustic soda
48–50% NaOH solution · no dissolving on site · IBC tanks or PE drums.
48–50% Liquid caustic soda supplierCaustic soda flakes — technical data sheet values
| Component | TDS value | Unit | Why buyers check it |
|---|---|---|---|
| NaOH (assay) | 98 ± 1 | % w/w | Active alkali you pay for |
| Na₂CO₃ (carbonate) | 0.43 | % w/w | Rises if flakes absorb CO₂ in poor packing |
| NaCl (chloride) | 0.0085 | % w/w | Low value confirms membrane-cell origin |
| Na₂SO₄ (sulfate) | 0.0047 | % w/w | Brine purity |
| SiO₂ (silica) | 0.0019 | % w/w | Scaling in boilers and evaporators |
| Fe (iron) | 10 | ppm | Colour in soap, textiles and pulp |
| Al₂O₃ (alumina) | max 3 | ppm | Trace impurity |
| Heavy metals (as Pb) | max 2 | ppm | Food and water duties |
| Insoluble in water | 0 | % w/w | Clean dissolution |
| Flake size | 0.3–1 | cm | Handling and dissolving rate |
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How the flakes are made
Purified brine is split by membrane-cell electrolysis into chlorine, hydrogen and a caustic solution of about 32%, which is evaporated to 50% and then to molten anhydrous NaOH. The melt is cast on a chilled rotating drum and scraped off as flakes; pearls are made instead by prilling the melt in a cooling tower. Because NaOH picks up CO₂ from the air, the carbonate figure on a COA is a freshness indicator — rising Na₂CO₃ and falling assay mean the material has sat in poor packing. Full process: how caustic soda is made.
Physical properties of sodium hydroxide flakes
| Property | Value | Note |
|---|---|---|
| Formula / molar mass | NaOH · 39.997 g/mol | Strong inorganic base |
| Appearance | White, opaque, brittle flakes | Odourless — smell gives no warning |
| Density | ≈ 2.13 g/cm³ | True density of the solid |
| Melting point | 318 °C (604 °F) | Anhydrous NaOH |
| Boiling point | 1,388 °C | Not relevant to normal handling |
| Solubility in water | ≈ 111 g / 100 mL at 20 °C | Strongly exothermic — add flakes to water, never water to flakes |
| pH, 1% solution | ≈ 13.4 | Corrosive to skin and eyes |
| Hygroscopic | Absorbs moisture and CO₂ | Why the PE liner matters |
| Incompatible with | Acids, aluminium, zinc, tin, brass | Amphoteric metals release hydrogen |
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Flakes vs Pearls vs Liquid — How to Choose
All three are sodium hydroxide. They differ in dust, dosing, freight efficiency and price — and for an importer, freight per tonne of NaOH usually decides.
| Criterion | Flakes 98–99% | Pearls 99% | Liquid 48–50% |
|---|---|---|---|
| NaOH per tonne shipped | ≈ 0.98–0.99 t | ≈ 0.99 t | ≈ 0.48–0.50 t |
| Freight per tonne of NaOH | Low | Low | About double |
| Dust | Moderate | Very low | None |
| Dosing | Batch, by bag | Automated feeders | Metering pump |
| Dissolving on site | Yes, releases heat | Yes, releases heat | No |
| Price position | Standard export benchmark | Below flakes on current offers | Lowest per tonne of product, highest per tonne of NaOH over long hauls |
| Cold weather | Cakes if damp | Little caking | 50% crystallises below ≈ 12 °C |
| Packing | 25 kg bags | 25 kg bags | IBC tanks or PE drums |
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The practical rule. If the material has to cross an ocean, buy solid: a 50% solution is half water, so you pay freight and dangerous-goods charges on twice the weight for the same alkali. Between flakes and pearls the choice is operational — pearls suit automatic feeders and dust-sensitive sites, and on our current offers they also cost less. More: caustic soda flakes vs liquid caustic soda · types and grades of caustic soda.
Export Packing and Container Loading
Caustic soda flakes absorb moisture and cake. Our bags are specified for long voyages through humid transit ports, where a single-layer woven sack does not survive intact.
| Format | Unit | Per 20ft container | Best for |
|---|---|---|---|
| 25 kg PP bag + PE liner, palletised | 25 kg | ≈ 24–25 MT | Forklift discharge, distributors, warehouse storage |
| 25 kg PP bags packed inside jumbo bags | 25 kg bags | Per packing list | Crane or forklift discharge with fewer units to handle |
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Why the liner matters. The bag is a woven polypropylene outer with a separate polyethylene inner liner. The outer takes the handling; the liner is the moisture barrier. A bag described only as “PP bag” with no liner is a cheaper product and the most common reason a buyer receives a caked container.
Storage. Keep flakes in sealed bags in a dry, covered and ventilated store, off the floor on pallets and away from acids, aluminium, zinc and water. Caked flakes are still sodium hydroxide but are harder to weigh and dose. Full guidance: how to store caustic soda safely.
What Caustic Soda Flakes Are Used For
Fifteen industries that buy caustic soda flakes. Each card links to a guide on grade choice and the quality parameters that matter in that process.
Soap & detergent
Saponification of fats and oils, and neutralising LABSA in detergent making.
Caustic soda in soap makingPulp & paper
Kraft pulping, white liquor make-up, bleaching extraction and de-inking.
Caustic soda in pulp and paperWater treatment
pH correction, alkalinity and corrosion control, and heavy-metal precipitation.
Caustic soda for water treatmentMining & alumina
Bauxite digestion in the Bayer process and protective alkalinity in gold circuits.
Caustic soda in miningTextiles
Mercerising cotton, scouring, desizing and dye-bath pH control.
Caustic soda for textile processingOil refining
Caustic washing to remove hydrogen sulfide, mercaptans and naphthenic acids.
Caustic soda in oil refiningFood processing
Olive curing, peeling and clean-in-place cleaning — food-grade material only.
Caustic soda in food productionSugar industry
Evaporator cleaning and pH control in juice clarification.
Caustic soda for the sugar industryBiodiesel
Catalyst for transesterification of vegetable oils and animal fats.
Caustic soda in biodiesel productionMetal processing
Degreasing, aluminium etching, paint stripping and pickling-line neutralisation.
Caustic soda in metal processingChemical manufacturing
Feedstock for sodium hypochlorite, sodium silicate and many sodium salts.
Caustic soda in chemical manufacturingAgriculture
Equipment sanitation and preparation of agricultural chemicals.
Caustic soda in agricultureBattery recycling
Neutralising spent electrolyte and leaching steps in battery recovery.
Caustic soda for battery recyclingCosmetics
pH adjustment and saponification within regulated concentration limits.
Sodium hydroxide in cosmeticsWorking concentrations and dosage depend on each plant’s process and are set by the user’s own technical team.
Handling, PPE and Exposure Limits
Sodium hydroxide is classified Skin Corr. 1A under GHS and CLP. It causes deep burns and serious eye damage, and the damage continues until the material is washed off. This is orientation only — the safety data sheet issued with every shipment governs.
Dilution rule — always add caustic soda flakes slowly to cold water while stirring. Never add water to flakes: the heat released can boil the liquid and throw out a corrosive spray.
Exposure limits, first response and transport classification
| Body | Limit |
|---|---|
| OSHA PEL | 2 mg/m³, 8-hour TWA |
| NIOSH REL / ACGIH TLV | 2 mg/m³ ceiling |
| NIOSH IDLH | 10 mg/m³ |
Eyes — flush with running water for at least 30 minutes, holding the eyelids open, and get medical help urgently. Skin — remove contaminated clothing while flushing with plenty of water; never try to neutralise a burn with acid. Swallowed — do not induce vomiting; rinse the mouth and call emergency services. Spill — keep dry, sweep up without raising dust into a sealed labelled container, then wash the residue with plenty of water.
| Framework | Classification |
|---|---|
| IMDG / ADR | UN 1823, sodium hydroxide, solid, Class 8, packing group II |
| GHS / EU CLP | Skin Corr. 1A (H314), Met. Corr. 1 (H290) |
| EU REACH | Registered substance, EC 215-185-5 |
| Food | Food additive E524, food-grade material only |
| Customs | HS 2815.11; national schedules add further digits |
Quality Control and Export Documents
The document set is where a real exporter separates itself from a broker forwarding an offer. Every caustic soda flakes shipment carries:
Evaluating an unfamiliar supplier — ours included? Our guide to checking caustic soda quality explains which COA figures signal a problem.
Caustic Soda Flakes Supplier for the UAE, Türkiye and Export Markets
Caustic soda flakes suppliers in the UAE: our Dubai desk
Our head office is in Dubai. We supply caustic soda flakes in 25 kg bags to all seven emirates — water and desalination plants, detergent and soap makers, refineries and re-sellers — with Jebel Ali as the loading port for Gulf and onward export orders. Local delivery details: caustic soda supplier in the UAE.
Caustic soda flakes in Türkiye: our Ankara desk
From Türkiye we supply all 81 provinces, load export containers at Mersin and deliver overland by truck to neighbouring markets. Details: caustic soda supplier in Türkiye.
Export markets
| Region | Key markets | Main industries | Usual origin |
|---|---|---|---|
| Europe & Black Sea | Poland, Romania, Ukraine, Moldova, Balkans | Chemicals, water treatment, pulp | Mersin · road |
| Middle East | UAE, Saudi Arabia, Kuwait, Qatar, Oman, Iraq | Refining, desalination, detergents | Jebel Ali |
| Africa | Nigeria, Kenya, Tanzania, South Africa, Morocco, Zambia | Mining, soap, water, textiles | Mersin · Jebel Ali |
| South & South-East Asia | Bangladesh, Sri Lanka, Pakistan, Vietnam, Indonesia | Textiles, soap, biodiesel | Jebel Ali |
| South America | Brazil, Argentina, Colombia, Chile, Peru | Mining, pulp, water treatment | Mersin · Jebel Ali |
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Landed cost by country. Indicative CIF levels for 165 destinations are on caustic soda price by country. Regional hubs: Africa · South America.
What Determines the Caustic Soda Flakes Price
There is no fixed list price for caustic soda flakes. The price moves with the chlor-alkali market, so we quote per metric ton against your enquiry, dated and with a stated validity. An open-ended price with no expiry date is an indication, not an offer.
| Driver | Effect on your cost |
|---|---|
| Chlor-alkali balance | Caustic soda is a co-product of chlorine, so chlorine and PVC demand move the caustic price as much as caustic demand does |
| Electricity cost | Electrolysis is power-intensive; regional power prices move producer costs directly |
| Form | Pearls are priced below flakes on current offers; liquid looks cheaper per tonne but costs more per tonne of NaOH once freight is added |
| Volume | Three or more containers, or a supply contract, are priced below a single container |
| Origin and route | Mersin or Jebel Ali can change the landed cost for the same product; Red Sea and Strait of Hormuz risk premiums have moved freight during 2026 |
| Incoterm and payment | FOB, CFR and CIF shift cost and risk between the parties; T/T and L/C at sight are priced differently |
| Destination compliance | Conformity certificates or food-grade documents add a per-shipment cost that belongs in the quotation |
Current indicative FOB Mersin levels are on the caustic soda flakes price page, alongside the caustic soda price per ton board. For a firm, dated figure for your volume, port and Incoterm, send the enquiry below.
How to Order — From Enquiry to Bill of Lading
A complete first enquiry gets a firm quotation in one round trip. These eight lines are what we need to price your container.
| Line | Example |
|---|---|
| Product and grade | Caustic soda flakes 98–99%, industrial or food grade |
| Quantity | 1 × 20ft container, or annual volume for contract pricing |
| Packing | 25 kg bags palletised, or 25 kg bags in jumbo bags |
| Destination | Named seaport, or delivery address for road |
| Incoterm | FOB Mersin, CFR or CIF your port — Incoterms 2020 |
| Payment | T/T against documents or L/C at sight |
| Certification | Food grade, conformity certificate, third-party inspection |
| Delivery window | Required loading or arrival date |
- Enquiry and quotationSend the eight lines by WhatsApp, email or the contact form. You receive a dated quotation showing FOB and CIF side by side.
- DocumentsTDS and SDS are on this page; the COA for the lot offered can be sent with the quotation.
- Proforma invoiceSpecification, packing, Incoterm, payment terms and loading window confirmed in writing.
- Lot allocation, inspection and loadingLot allocated and COA issued, optional third-party inspection, container stuffed and sealed.
- Documents and sailingInvoice, packing list, B/L or CMR, certificate of origin, COA, SDS and DG declaration released per the payment terms.
Typical lead time is 7–14 working days from confirmed order to loading, depending on packing and on any destination certificate that must be issued first.
Buy From a Reliable Caustic Soda Flakes Supplier
Firm, dated quotation with FOB and CIF side by side within 24 hours. TDS and SDS free to download; COA with every lot.
Caustic Soda Flakes Supplier FAQ
Are you a caustic soda flakes manufacturer, distributor or supplier?
Do you sell caustic soda flakes wholesale?
Can distributors buy caustic soda flakes from you for resale?
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What are caustic soda flakes used for?
What is the difference between caustic soda flakes and pearls?
What is the price of caustic soda flakes per ton?
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How are caustic soda flakes packed for export?
What is the HS code and UN number for caustic soda flakes?
Can I see the specification and a certificate of analysis before ordering?
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Speak With Our Export Desk
We answer caustic soda flakes enquiries within 24 hours. WhatsApp is usually fastest.
WAWhatsApp+971 50 720 9246 TELPhone+971 50 720 9246 @Emailinfo@causticsodaco.com RFQEnquiry formSend a full RFQ with specification and destination