Description
Chemical Identity
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Product Name: Liquid Caustic Soda 32%
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Also Known As: Lye, Sodium Hydroxide Solution 32%
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Chemical Formula: NaOH
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CAS Number: 1310-73-2
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Appearance: Clear, colorless liquid
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Odor: Odorless
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Solubility: Completely soluble in water
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pH (at 25°C): >13 (Highly alkaline)
Specifications of Liquid Caustic Soda 32%
| Property | Specification |
|---|---|
| Concentration | 32% ± 1% NaOH |
| Sodium Carbonate (Na2CO3) | ≤ 0.2% |
| Chlorides (Cl⁻) | ≤ 0.02% |
| Iron (Fe) | ≤ 0.005% |
| Specific Gravity (20°C) | 1.33 – 1.35 g/cm³ |
| Boiling Point | ~135°C |
| Freezing Point | ~ -11°C |
| Appearance | Clear and free from suspended matter |
Applications of Liquid Caustic Soda 32%
🧪 Chemical Industry
Used as a base chemical in the manufacture of soaps, detergents, solvents, and inorganic compounds. It also acts as a reagent in neutralization and pH control processes.
🚰 Water and Wastewater Treatment
Liquid caustic soda is essential for pH regulation, heavy metal precipitation, and neutralizing acidic waste streams in municipal and industrial water treatment systems.
🧼 Cleaning and Sanitation
Its strong alkaline nature makes it effective for degreasing, descaling, and sanitizing equipment, especially in food processing, beverage, and dairy industries.
🏗️ Petroleum & Oil Industry
Used to remove acidic impurities such as hydrogen sulfide and carbon dioxide in oil refining. It also plays a key role in caustic washing and catalyst regeneration.
🧵 Textile and Pulp & Paper Industries
In textiles, it is used in scouring, mercerization, and dye preparation. In paper manufacturing, it assists in pulping and bleaching processes.
Safety and Handling
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Corrosive: Can cause severe burns to skin and eyes. Avoid direct contact.
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Storage: Store in corrosion-resistant containers, away from acids and oxidizing agents.
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Protective Equipment: Use gloves, goggles, and face shields when handling.
Conclusion
Liquid Caustic Soda 32% (Lye) is a highly versatile and essential alkaline solution used across diverse industrial sectors. Its strength, reactivity, and cost-effectiveness make it an ideal choice for neutralization, chemical synthesis, and pH control. Whether you’re managing water treatment facilities, chemical plants, or food processing units, Sodium Hydroxide 32% offers reliable performance with consistent results.
