LIQUID NaOH 32% - 50%

Liquid caustic soda, with concentrations of 32% to 50%, is a widely used chemical in various industries, particularly in paper production, aluminum smelting, and wastewater treatment…Despite its common usage, not everyone fully understands the various issues related to liquid caustic soda, such as its properties, applications, storage methods, and emergency handling procedures. To gain a better understanding of liquid caustic soda 32% - 50% and to find reputable suppliers, please read our article below.

What is Liquid caustic soda 32%, 45%, and 50%?

Liquid caustic soda 32% is a solution where sodium hydroxide (NaOH) concentration ranges from 32% to 50%. It is one of the most commonly used industrial chemicals today. Besides its name as liquid soda, it is also referred to as caustic soda, sodium hydroxide, and lye.

This chemical is highly soluble in water, alcohol, and glycerin. However, it is insoluble in ether and other non-polar solvents.

Physical and Chemical properties of liquid caustic soda 32%, 45%, and 50%

Liquid soda 32% - 50% is not only used in industry but also in laboratory settings. Similar to regular sodium hydroxide, this soda has the following physical and chemical properties:

Physical properties:

• Exists as a liquid, is white in color, and has strong hygroscopic properties.

• Odorless and highly soluble in cold water or alcohol.

• Solubility at room temperature (20°C): 111 g/100 ml.

• Boiling point: 1390°C.

• Melting point: 318°C.

• Density : 2.13 (water density = 1).

• pH concentration = 3.

• Molar mass of liquid soda: 39.9971 g/mol.

Chemical Properties:

• Participates in neutralization reactions with acids/acid oxides to produce salt and water: NaOH + HCl → NaCl + H₂O

• Reacts with carbon dioxide to produce carbonate salt: 2NaOH + CO₂ → Na₂CO₃ + H₂O

• Reacts with strong metals to produce new metals and new bases: NaOH + K → KOH + Na

• Reacts with salts to produce new salts and new bases: CuCl₂ + 2NaOH → Cu(OH)₂ + 2NaCl

Main Applications of Liquid NaOH 32%, NaOH 45%, and NaOH 50% in Practice

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• In wastewater treatment: NaOH 32% - 50% is used to treat acidic wastewater to raise its pH. NaOH generates hydroxides to remove heavy metals, neutralize, and eliminate scale in water supply pipes, as well as increasing pH in cyanide treatment reactions and nitrogen stripping towers. Furthermore, NaOH helps to regenerate ion exchange resins.

• In the production of detergents: It is used in the manufacturing of bleaching agents, disinfectants, detergents, and soaps.

• In the production of some pharmaceuticals: Used to produce pain relievers and antipyretics like Aspirin and cholesterol-reducing medications.

• In the paper industry: In Kraft pulp production, an alkali mixture containing NaOH and Na₂S is used to dissolve lignin and semi-cellulose found in straw, bamboo, and wood chips, aiming to release fiber cellulose.

• In the artificial fiber industry: Liquid caustic soda is used to break down lignin, a harmful substance often associated with cellulose in wood pulp.

• In the food industry: Liquid caustic soda is utilized to remove fatty acids from animal and vegetable oils during refining. Additionally, it is used to prepare washing solutions for bottles, fruits, and vegetables before processing, canning, or cleaning machinery in breweries.

• In the oil and gas industry: Liquid caustic soda is used to adjust the pH of drilling fluid solutions to remove sulfur, a component found in crude oil.

• In dyeing and textile processing: In the raw fabric processing stage, NaOH is used as a pectin and wax degrading agent to enhance fabric gloss and allow faster dye absorption.

Guidelines for Proper Storage and Emergency Handling of Liquid NaOH 32% - 50%

Like other chemicals, the storage and handling of liquid NaOH must adhere to specific regulations:

Storage

• Store in cool, dry places away from direct sunlight.

• Keep storage areas free from acids, oxidizing agents, reducing agents, and metals like aluminum, zinc, and magnesium.

• Store liquid soda in specialized plastic or lightweight steel drums with tightly sealed lids.

Emergency Handling

• If chemical splashes into the eyes, remove contact lenses (if any) immediately and rinse with clean water for at least 15 minutes. Then, seek medical attention promptly.

• If liquid soda splashes onto the skin, follow these steps

  • Carefully remove clothing and footwear to prevent further contact.

  • Rinse the affected skin area with clean water for at least 15 minutes. If heavily contaminated, use soap to wash and then apply antibacterial cream.

  • Cover the burned skin area with soft bandages.

  • Immediately transfer the affected person to the nearest medical facility for examination and treatment.

  • For contaminated clothing and shoes, wash thoroughly before reuse.

• If inhaling chemical vapors

  • Move the victim to a well-ventilated, safe area.

  • Loosen or remove clothing.

  • If the victim stops breathing, perform artificial respiration immediately.

  • Take the victim to the nearest medical facility for further treatment.

To ensure safety, workers must wear appropriate protective clothing when handling chemicals, including coveralls, gloves, masks, goggles, and safety boots. In poorly ventilated areas, additional respiratory support equipment should be worn.

Dong A Joint Stock Company – A Trusted Supplier of Liquid Caustic Soda 32%, 45%, and 50% at Competitive Prices

There are many suppliers of liquid caustic soda 32% - 50% on the market, but not all of them ensure quality and competitive pricing. Therefore, you should choose reputable suppliers with a good reputation. One of the suppliers we would like to introduce is Dong A Joint Stock Company, a leading provider of chemicals today.

Currently, Dong A offers liquid caustic soda with concentrations of 32%, 45%, and 50% to meet the diverse needs of customers. The quality standards of liquid caustic soda 32% - 50% at Dong A Joint Stock Company are as follows:

At Dong A, you not only receive quality products but also benefit from competitive pricing and reliable after-sales service, with nationwide delivery support. So, please contact Dong A whenever you need NaOH 32% - 50% chemicals.