
Product Overview – Liquid Caustic Soda (Sodium Hydroxide Solution)
- Chemical Name: Sodium Hydroxide Solution
- Chemical Formula: NaOH
- CAS Number: 1310-73-2
- Appearance: Clear, colorless liquid
- Concentration: 48% ±1%
- Grade: Industrial / Technical
General description of Liquid Caustic Soda
Liquid Caustic Soda (Sodium Hydroxide Solution) is a highly alkaline and versatile chemical used extensively in a wide range of industries. It is produced through the electrolysis of sodium chloride (NaCl) solution and supplied as a 48–50% aqueous solution.
Known for its strong cleaning, neutralizing, and reactive properties, liquid caustic soda is one of the most important inorganic chemicals in industrial applications.
Key Applications of Liquid Sodium Hydroxide
- Chemical manufacturing: Intermediate for producing detergents, solvents, and other sodium-based compounds.
- Pulp & paper industry: Used in pulping, bleaching, and pH control processes.
- Textile industry: Employed for scouring, mercerizing, and dyeing operations.
- Water treatment: Adjusts pH and neutralizes acidic wastewater.
- Petroleum refining: Removes sulfur and acidic contaminants.
- Soap and detergent production: Essential raw material for saponification and cleaning products.
- Food industry: Used under strict regulation for cleaning and peeling operations.

Premium Supplier of Liquid Caustic Soda – Zumrut International Kimya
Zumrut International Kimya is a leading global supplier and exporter of Liquid Caustic Soda (Sodium Hydroxide Solution), delivering top-quality chemical products with reliability, consistency, and international standards. With strong logistics capabilities and long-term partnerships with major producers, we provide high-purity Caustic Soda Solution (48–50%) to customers across the Middle East, Europe, Africa, and Asia.
Our Liquid Caustic Soda is a clear, colorless, and highly alkaline solution, widely used in various industrial processes. We ensure strict quality control, advanced packaging, and safe transportation to meet the needs of every customer — from small industrial consumers to large-scale manufacturing plants.
Product Excellence
Zumrut International Kimya’s Liquid Caustic Soda is manufactured using modern membrane cell technology, guaranteeing high purity, low impurity levels, and consistent performance. The product conforms to international standards such as ISIRI 6135, making it suitable for use in chemical manufacturing, textile processing, pulp and paper production, water treatment, petroleum refining, and soap & detergent industries.
We understand the importance of product quality and safety; therefore, each batch undergoes detailed laboratory testing to ensure compliance with strict specifications before shipment.
Global Logistics & Reliable Shipping
Through our strategic presence in Turkey, the UAE, Zumrut International Kimya ensures fast and efficient deliveries to major seaports around the world.
We ship through key international ports including:
- Mersin Port (Turkey)
- Jebel Ali Port (UAE)
- Iskenderun Port (Turkey)

Packing of Liquid Sodium Hydroxide
Available Packaging Options
IBC Tanks (Intermediate Bulk Containers)
- Capacity: 1,000 Liters (1 MT net)
- Ideal for customers requiring flexibility and medium-volume consumption.
HDPE Drums
- Capacity: New still Drum 210-220 kg
- Made from corrosion-resistant, heavy-duty HDPE material.
ISO Tank Containers
- Capacity: 20–25 Metric Tons (bulk liquid transport)
- Stainless steel tanks with protective linings, approved for hazardous chemicals.
Technical Data Sheet of liquid caustic soda
| No. | Specification | Unit | Acceptance Limit | Result | Test Method / Standard |
| 1 | Sodium Hydroxide (NaOH) Purity | % mass | Min 48 | 50 | ISIRI-6135 |
| 2 | Sodium Carbonate (Na₂CO₃) | % mass | Max 0.5 | 0.2 | ISIRI-6135 |
| 3 | Sodium Chloride (NaCl) | % mass | Max 0.03 | 0.01 | ISIRI-6135 |
| 4 | Sodium Sulfate (Na₂SO₄) | % mass | Max 0.007 | 0.001 | ISIRI-6135 |
| 5 | Silica (SiO₂) | % mass | Max 0.01 | 0.001 | ISIRI-6135 |
| 6 | Iron (Fe) | ppm | Max 10 | 3 | ISIRI-6135 |
| 7 | Aluminum Oxide (Al₂O₃) | ppm | Max 10 | <1 | ISIRI-6135 |
| 8 | Mercury (Hg) | ppm | Max 0.1 | 0.01 | ISIRI-6135 |
| 9 | Arsenic Oxide (As₂O₃) | ppm | Max 1 | <0.02 | ISIRI-6135 |
Specifications of Caustic Soda Liquid



