Caustic Soda Lye (Sodium Hydroxide Solution) is a strong alkaline chemical widely used in chemical manufacturing, textiles, pulp and paper, detergents, water treatment, alumina processing, petroleum refining, and various industrial processes. It is supplied as an aqueous solution of sodium hydroxide and is valued for its strong alkalinity and excellent reactivity.
As a reliable Caustic Soda Lye manufacturer in India, we supply sodium hydroxide solution in different concentrations for industrial applications, bulk requirements, and international export.
General Specification
| Parameter | Specification | Result |
|---|---|---|
| Appearance | Clear, colorless liquid | Clear, colorless liquid |
| Sodium Hydroxide (NaOH) | 48.0 – 50.0% w/w | 49.10% |
| Sodium Carbonate (Na₂CO₃) | NMT 0.10% | 0.06% |
| Sodium Chloride (NaCl) | NMT 0.005% | 0.003% |
| Iron (Fe) | NMT 5 ppm | 2 ppm |
| Density at 20°C | 1.51 – 1.53 g/cm³ | 1.52 g/cm³ |
| Water Insoluble Matter | NMT 0.01% | 0.003% |
| Appearance of Solution | Clear, free from visible suspended matter | Complies |
Specifications may vary according to concentration and grade. Batch-specific COA and detailed technical specifications are available on request. For more detailed specification and technical data please Contact Us.
Technical Specification
| Parameter | Details |
|---|---|
| Product Name | Caustic Soda Lye |
| Chemical Name | Sodium Hydroxide Solution |
| Other Names | Caustic Lye, Sodium Hydroxide Lye, NaOH Solution |
| Chemical Formula | NaOH |
| CAS Number | 1310-73-2 |
| Molecular Weight | 40.00 g/mol |
| Appearance | Clear, colorless liquid |
| Odor | Odorless |
| Solubility | Completely miscible with water |
| Nature | Strongly alkaline / corrosive |
Available Grades & Concentrations
We supply:
- Caustic Soda Lye 48%
- Caustic Soda Lye 49%
- Caustic Soda Lye 50%
- Industrial Grade Caustic Soda Lye
50% Caustic Soda Lye is one of the most commonly traded commercial concentrations.
Applications
Chemical Industry
Caustic Soda Lye is an important raw material and processing chemical used in:
- Chemical synthesis
- pH adjustment
- Neutralization reactions
- Sodium salt production
- Industrial chemical processing
Textile Industry
Used extensively in textile processing for:
- Mercerization
- Cotton processing
- Scouring
- Dyeing preparation
- Removal of impurities from fibers
Pulp & Paper Industry
Used in:
- Pulp processing
- Chemical recovery processes
- De-inking
- Pulp bleaching processes
- Paper manufacturing
Water Treatment
Caustic Soda Lye is used for:
- pH adjustment
- Neutralization of acidic wastewater
- Alkalinity control
- Industrial wastewater treatment
- Water-treatment chemical formulations
Detergents & Cleaning Products
Used in the manufacture of:
- Industrial detergents
- Cleaning chemicals
- Degreasers
- Soap
- Chemical cleaning formulations
Alumina Production
Caustic Soda is an important process chemical in the Bayer process for extracting alumina from bauxite.
Petroleum & Refining
Used in selected refining and processing operations, including:
- Acid gas treatment
- Neutralization
- Petroleum processing
- Refinery chemical treatment
Advantages
- High alkalinity
- Excellent water solubility
- Consistent concentration
- Effective neutralizing agent
- Suitable for large-scale industrial processes
- Available in multiple concentrations
- Bulk supply capability
Packaging & Transportation
Because Caustic Soda Lye is highly corrosive, it requires suitable corrosion-resistant containers and specialized transportation.
Available supply options include:
- HDPE drums
- HDPE/compatible IBC containers
- Bulk tanker supply
- Customized industrial packaging based on quantity and destination
Packaging and transport are selected according to the product concentration, applicable dangerous-goods requirements, and destination regulations.
Storage Conditions
- Store in compatible corrosion-resistant containers.
- Keep containers tightly closed.
- Store in a cool, dry and well-ventilated area.
- Protect from contamination.
- Prevent contact with moisture where applicable.
- Use suitable secondary containment for bulk storage.
Handling Precautions
Caustic Soda Lye is highly corrosive.
- Avoid contact with skin and eyes.
- Wear suitable chemical-resistant gloves and protective clothing.
- Use appropriate eye/face protection.
- Use compatible equipment and transfer systems.
- Follow the product-specific SDS/MSDS and local handling regulations.
Why Choose Us?
- Reliable Caustic Soda Lye manufacturer in India
- Industrial-grade sodium hydroxide solution
- 48%, 49% and 50% concentrations available
- Bulk supply capability
- MSDS/SDS and TDS support
- Suitable industrial packaging
- Reliable global logistics
FAQs
What is Caustic Soda Lye?
Caustic Soda Lye is an aqueous solution of sodium hydroxide (NaOH). It is a strong alkaline and highly corrosive industrial chemical used in numerous manufacturing and processing applications.
What is the CAS number of Caustic Soda Lye?
The CAS number for sodium hydroxide (NaOH) is 1310-73-2.
What is the difference between Caustic Soda Lye and Caustic Soda Flakes?
Caustic Soda Lye is sodium hydroxide dissolved in water and supplied as a liquid. Caustic Soda Flakes are solid sodium hydroxide, typically supplied in flake form at much higher concentration.
What concentration of Caustic Soda Lye is available?
Common commercial concentrations include 48%, 49% and 50% NaOH, with customized concentrations available depending on the application and supply requirements.
What is Caustic Soda Lye 50%?
Caustic Soda Lye 50% is an aqueous sodium hydroxide solution containing approximately 50% NaOH by weight. It is widely used in chemical manufacturing, textiles, water treatment and other industrial processes.
What is Caustic Soda Lye used for?
Major applications include chemical manufacturing, textile processing, pulp and paper, alumina production, water treatment, detergents, petroleum processing and industrial cleaning.
Is Caustic Soda Lye corrosive?
Yes. Concentrated sodium hydroxide solution is highly corrosive and can cause severe chemical burns. Appropriate protective equipment, compatible storage containers and controlled handling procedures are required.
Why is Caustic Soda Lye supplied in drums or tankers instead of normal bags?
Caustic Soda Lye is a liquid and highly corrosive, so it cannot be supplied in ordinary bags. It is transported in compatible corrosion-resistant containers such as HDPE/appropriate IBCs or bulk tankers.
Is Caustic Soda Lye soluble in water?
Yes. Sodium hydroxide is highly soluble in water. Dissolution releases substantial heat, so appropriate industrial procedures must be followed when preparing or diluting solutions.
Is Caustic Soda Lye used in textile processing?
Yes. It is widely used in textile processing, particularly for cotton mercerization, scouring and preparation before dyeing.
Is Caustic Soda Lye used in water treatment?
Yes. It is used for pH adjustment, neutralization of acidic streams and alkalinity control in various water and wastewater treatment processes.
Do you supply Caustic Soda Lye in bulk?
Yes. We supply Caustic Soda Lye in bulk quantities, with packaging and transportation options selected according to concentration, quantity and destination.
Do you provide COA and MSDS for Caustic Soda Lye?
Yes. Batch-specific COA, MSDS/SDS and technical documentation can be provided with the supplied material.
What industries use Caustic Soda Lye?
Major industries include chemical manufacturing, textiles, pulp and paper, alumina, water treatment, detergents, petroleum refining and industrial cleaning.
