Our high-purity Soda Caustica Liquida (Liquid Caustic Soda / Sodium Hydroxide Solution) is a clear, highly reactive alkaline liquid engineered for demanding industrial processes. Designed for immediate chemical reaction, it eliminates the dust hazards and dissolving time associated with solid caustic soda flakes. It is widely used in wastewater treatment pH adjustment, wood pulp digestion in paper manufacturing, textile mercerization, metal surface cleaning, and sodium salt synthesis. Manufactured under strict ISO quality controls, our product features low levels of chlorates, iron, and heavy metals. Available in 32%, 48%, and 50% concentration grades, we provide flexible global delivery options including 250kg HDPE drums, 1000kg IBC totes, and ISO tank containers to satisfy international industrial supply requirements efficiently.
High Purity & Low Impurities: Manufactured with strict electrolytic process control, maintaining iron (≤5 ppm) and chloride levels at minimums to prevent unwanted side reactions and equipment fouling.
Streamlined Operations: Eliminates solid dissolving steps, enabling precise, automated liquid metering and reduced labor and energy costs.
Superior Reactivity: Highly soluble and instantly reactive for rapid neutralization and chemical synthesis.
| Parameter | Specification (50% Grade) | Specification (32% Grade) |
| Chemical Name | Sodium Hydroxide Solution (NaOH) | Sodium Hydroxide Solution (NaOH) |
| CAS Registry No. | 1310-73-2 | 1310-73-2 |
| UN Number & Class | UN 1824 | Class 8 Corrosive | UN 1824 | Class 8 Corrosive |
| Appearance | Clear, colorless, viscous liquid | Clear, colorless liquid |
| $\text{NaOH}$ Content | 49.0% - 51.0% | 31.5% - 32.5% |
| Density ($20^\circ\text{C}$) | ≈1.52g/cm3 | ≈ 1.35g/cm3 |
| Sodium Carbonate ($\text{Na}_2\text{CO}_3$) | ≤0.1% | ≤0.05% |
| Sodium Chloride ($\text{NaCl}$) | ≤0.02% | ≤0.01% |
| Iron ($\text{Fe}$) | ≤5ppm | ≤3ppm |
Liquid Sodium Hydroxide (NaOH solution) is a versatile, high-potency basic chemical essential to global chemical synthesis and heavy industrial processing. Its pre-dissolved nature eliminates dry-powder mixing delays and dust hazards, ensuring efficient continuous dosing across key industrial sectors.
Water & Wastewater Treatment: Functions as an effective pH neutralizer, alkalinity control agent, and heavy metal precipitant in municipal water treatment plants and industrial effluent facilities.
Pulp & Paper Manufacturing: Acts as an essential chemical reagent for wood chip digestion in the Kraft pulping process, driving efficient lignin removal and supporting pulp bleaching phases.
Textile & Dyeing Industry: Deployed in cotton fiber mercerization, swelling cellulose fibers to significantly enhance tensile strength, surface luster, and dye affinity.
Chemical & Soap Synthesis: Serves as the primary saponification base for high-grade soaps and commercial detergents, as well as a key raw material for synthesizing sodium silicate, sodium phosphates, and organic resins.
Metal Processing & Surface Cleaning: Used extensively for degreasing steel parts, chemical etching of aluminum components, and neutralizing acidic cleaning residues.
Packaging Configurations: Supplied in heavy-duty 250 kg HDPE plastic drums, 1000 kg / 1200 kg high-density IBC totes, or ocean-going bulk ISO Tank containers.
Logistics & Regulatory Compliance: Shipped under strict compliance with IMDG/ADR hazardous transport regulations (UN 1824, Class 8 Corrosive Substance, Packing Group II). Every shipment is accompanied by a comprehensive Safety Data Sheet (SDS) and a batch-specific Certificate of Analysis (COA).
Storage & Temperature Control: Store in alkali-resistant containers constructed from high-density polyethylene (HDPE), rubber-lined steel, or nickel alloys. Maintain storage ambient temperatures strictly above 15°C to 20°C to prevent crystallization, freezing, and severe viscosity increases in high-concentration (e.g., 50%) solutions.
Fangyuan (Tianjin) Chemical Co., Ltd. is one of the leading caustic soda suppliers in China, specializing in high-quality sodium hydroxide flakes, pearls, solid, and liquid caustic soda. With 20 years of manufacturing experience and direct shipment from Tianjin Port, we offer stable quality and competitive wholesale prices worldwide. Contact us today for reliable chemical solutions...[ read more ]
Contact person : Alice Wang
WhatsAPP/Mobile Phone：86-18622179529
E-mail: admin@fangyuan-chem.com
Add：Room 908A, Yinzuo Building, No. 35, Second Avenue, Tianjin Economic and Technological Development Area
