Caustic soda lye, chemically sodium hydroxide in aqueous solution, is one of the most widely supplied industrial alkalis in liquid form. It carries the same reactivity as solid caustic soda but offers practical advantages for buyers running continuous processes: no dissolving step, easier dosing, and faster integration into liquid-based systems.

The product is produced from membrane cell electrolysis, then held in solution at controlled concentrations rather than evaporated into flakes. This makes it especially suited for industries where liquid handling and metered dosing are operationally simpler than solid handling.

Sodium hydroxide (CAS 1310-73-2) is listed on the US TSCA Chemical Substance Inventory, meeting federal import and commercial use requirements for US-bound shipments. Buyers placing bulk orders also track the price of caustic soda in solution form, since contract rates feed directly into the cost of what they produce downstream.

Manufacturing Process of Caustic Soda Lye

Caustic soda is produced through the electrolysis of purified brine, a saltwater solution that yields sodium hydroxide along with chlorine and hydrogen as co-products. Modern producers use membrane cell technology to keep purity high and impurity levels low.

For lye production, the sodium hydroxide solution is held at the target commercial concentration rather than evaporated and solidified into flakes. This step removes the energy-intensive evaporation phase and delivers a ready-to-use product at consistent strength.

Every shipment Elchemy supplies is tested for assay strength, sodium carbonate, and chloride content before dispatch, with a Certificate of Analysis travelling alongside each order.

Caustic Soda Lye Price: Bulk Pricing for Industrial Buyers

If you're looking for current caustic soda lye pricing for bulk procurement, Elchemy provides quotes based on your specific requirements. Fill out the quote request form with the required details, such as volume, concentration, destination, and any other relevant information about your procurement, and our team will revert with a detailed offer within 24 to 48 hours.

Pricing works on a quote basis because caustic soda lye is a chlor-alkali commodity, so rates move with global demand for chlorine and sodium hydroxide rather than tracking a fixed list. Concentration also matters for liquid grade: a 50% solution and a 32% solution carry different commercial values per unit volume.

Beyond the core chemistry, several factors layer in: regional power tariffs, freight (which is higher for liquid than for flakes per unit of active NaOH), Incoterm choice, and applicable import duty for US-bound shipments.

For an approximate read on where the market sits, procurement teams often track the caustic lye price in trade publications alongside chlor-alkali demand signals, particularly when planning quarter-ahead requirements.

The liquid caustic soda price is also reported separately from solid grade in some market references, since liquid and flake forms move on slightly different supply-demand dynamics even though the underlying chemistry is identical.

For long-term sourcing contracts at scale, the caustic soda bulk price is the figure most procurement teams build their annual budgets around, since it captures volume commitment, contract structure, and committed destination.

For an exact rate, none of these references replace a direct quote. The actual price depends on your concentration, volume, contract structure, destination, and dispatch timing, which is why a quote from our team will always be the most accurate number for your specific procurement.

Packaging & Logistics

Caustic soda lye ships in HDPE drums for standard orders, with bulk tankers and ISO containers available for larger commercial volumes, supplied as per buyer requirements. Tanker shipments require buyer-side receiving infrastructure such as compatible storage tanks and offloading equipment.

For US-bound orders, domestic stock from our US warehouses supports faster fulfillment. If chemical sourcing is required from India or other origin countries, transit times typically run 24 to 28 days to the US East Coast and 18 to 22 days to the West Coast. Elchemy offers FOB, CIF US port, and DDP terms, depending on how your procurement team prefers to handle landed cost and customs.

Material should be stored in tightly sealed containers in a cool, well-ventilated area at temperatures above its freezing point, since high-concentration solutions can crystallize in cold conditions. Keep clear of acids, aluminum, zinc, and incompatible substances. Standard dispatch follows agreed contract terms, with expedited timelines available where needed.

Safety & Handling

Caustic soda lye is highly corrosive and needs careful handling at every stage. The solution causes severe burns on skin and eye contact and is classified as a hazardous industrial chemical under OSHA HazCom 2012 (GHS), with the additional risk that splashes carry further than solid material. For US transport, the solution falls under DOT Hazmat Class 8 (Corrosive), UN1824, Packing Group II.

Handlers should wear chemical-resistant gloves, splash goggles or a full face shield, closed footwear, and chemical-resistant aprons or clothing rated for caustic splashes. If contact occurs, flush the affected area with water for at least 15 minutes and seek medical attention.

Store the solution in tightly sealed, compatible containers (HDPE, FRP, or stainless steel) in a cool, well-ventilated space, kept above the freezing point and clear of acids, aluminum, zinc, and other incompatible substances. Contain spills with dry inert absorbent rather than diluting with water, since concentrated caustic releases significant heat when diluted.

The full 16-section GHS-aligned SDS is available alongside material orders for reference by EHS and operations teams.

Regulatory & Certification Status

• Sodium hydroxide (CAS 1310-73-2) is listed on the US TSCA Chemical Substance Inventory
• NSF/ANSI 60 certified caustic soda lye, alongside other industry-specific certifications, can also be supplied based on procurement requirements

Why Choose Elchemy as a Trusted Caustic Soda Lye Supplier?

Elchemy makes caustic soda lye procurement straightforward for industrial buyers. That means high-purity material at consistent, controlled concentrations, with other concentrations sourced on request, and a Certificate of Analysis for every batch.

For US buyers, domestic stock from our US warehouses cuts lead time when timelines are tight. Sodium hydroxide is TSCA-listed and ships with a GHS-aligned SDS (OSHA HazCom 2012). NSF/ANSI 60 certified material is also available on request. Flexible Incoterms (FOB, CIF, or DDP) give your procurement team room to structure the deal the way it works best.

Elchemy ships into 40+ countries with samples available for qualification before any bulk order and competitive pricing based on volume, concentration, destination, and contract terms.

• High-purity sodium hydroxide solution at controlled concentrations
• Available in 32%, 48%, 50%, and other commercial strengths on request
• Mercury-free, membrane cell production
• Ready-to-use liquid format, no dissolving step required
• Compatible with continuous metered dosing systems
• Low sodium carbonate and chloride content
• TSCA-listed; NSF/ANSI 60 certified grade available on request
• Versatile across chemicals, refining, water treatment, textiles, and aluminum production
• 1-year shelf life in sealed containers under recommended storage