Ứng dụng của nước Javen (NaClO) – hóa chất tẩy trắng

Application of Javen water (NaClO) – bleaching chemical. Javen water (NaClO) is a common industrial chemical with strong oxidizing properties and outstanding bactericidal ability. Thanks to its effective bleaching and disinfecting properties, Javen water is widely used in many fields. Such as domestic water treatment, wastewater treatment, fabric and paper bleaching, medical hygiene and sterilization in the food industry.

The article below will help you better understand the chemical properties, uses and how to use Javen water safely and effectively. If you are looking for a high quality Javen water supply. Vu Hoang will be a reliable choice with standard products and professional services.

Application of Javen water (NaClO) – bleaching chemical

What is Javen Water?

Javen water (Sodium Hypochlorite – NaClO) is a common industrial chemical. Has strong oxidizing properties and high bactericidal ability. Thanks to its outstanding antiseptic properties. Javen is widely used in fabric bleaching, wastewater disinfection, medical hygiene and domestic water treatment. This is an effective solution that helps eliminate bacteria, mold and organic pollutants in many areas.

Important Chemical Properties of Javen Water

• Chemical formula: NaClO (Sodium Hypochlorite)
• State: Liquid solution, colorless or pale yellow
• Smell: Slight pungent smell, similar to chlorine gas
• pH: 11 – 13 (strong alkaline)
• Active chlorine: 10 – 12% (depending on solution concentration)
• Solubility: Completely soluble in water, creating a solution with strong antiseptic properties.

Important chemical reactions:

• Decomposes when exposed to air
• Reacts with CO₂ in the air
  • NaClO+CO2+H2O→HOCl+NaHCO3
• Creates Hypochlorous acid (HOCl) – a powerful disinfectant when dissolved in water.

Note: Javen water is easily decomposed when exposed to light and high temperature. Therefore, it should be stored in a dry place, away from direct sunlight.

Application of Javen water in Wastewater & Domestic Water Treatment

Domestic Water Treatment

How It Works

• Javen water contains NaClO, which when dissolved in water will create hypochlorous acid (HOCl). A powerful disinfectant that kills most disease-causing microorganisms.
• Active chlorine in Javen breaks down bacterial cell membranes. Prevent their ability to develop.

Specific Applications

• Urban water supply system: Treats water supply before distributing to households.
• Well water treatment: Removes bacteria, viruses and organic impurities.
• Clean the water filtration system: Javen helps remove dirt, moss and microorganisms on the filter surface.

Processing Procedures

• Dilute Javen Water at a ratio of 1 – 3 mg/L (depending on the level of pollution).
• Stir well to ensure dispersion of active chlorine.
• Wait for the reaction at least 30 minutes to effectively kill bacteria.
• Check residual chlorine to ensure safety before use.

Industrial Wastewater Treatment

Handling of Toxic Organic Substances

• Javen oxidizes complex organic compounds into more easily degradable compounds. Helps reduce wastewater pollution.
• Application in textile and dyeing industry: Helps decolorize wastewater. Especially azo compounds are difficult to handle.
• Medical wastewater treatment: Kills bacteria and viruses in wastewater from hospitals and laboratories.

Deodorizing Wastewater

• Hydrogen Sulfide (H₂S), Ammonia (NH₃) compounds that cause bad odors can be oxidized by Javen. Helps reduce odor effectively.

Note

• Recommended dosage: 5 – 20 mg/L.
• Reaction time: 15 – 30 minutes before flushing.
• Control residual chlorine: Use Na₂S₂O₃ (Sodium thiosulfate) to neutralize.

Application of Javen water in Textile & Paper Industry

Bleaching of Fabrics and Textiles

• Javen water is a strong bleaching agent. Helps remove impurities, grease, and dirt from fabric fibers before dyeing.
• Bleaching cotton, linen, medical clothing, and industrial protective clothing.

Advantage

• Fast efficiency, helps save processing time.
• Does not cause corrosion to fabric fibers if used at the correct concentration.

Notes When Using

• Do not use on silk, wool, polyester, or nylon fibers because it may damage the fiber structure.
• Suitable concentration: 1 – 5% depending on bleaching requirements.

Processing Procedures

• Soak the fabric in 1 – 5% Javen solution for 5 – 10 minutes.
• Rinse with clean water and neutralize residual chlorine with sodium thiosulfate (Na₂S₂O₃) solution.
• Dry and check whiteness before dyeing.

Bleaching Paper And Pulp

Benefits of Javen in Paper Industry

• Removes lignin in pulp without affecting paper strength.
• Safer than pure chlorine, reducing the risk of creating dioxin – a carcinogen.

Specific Applications

• Producing high-quality white paper used in printing and office paper.
• Bleach toilet paper and napkin paper to ensure safety for users.

NaClO is used to whiten paper, pulp, fabric…

Processing Procedures

• Dilute Javen with water at a ratio of 1 – 3%.
• Soak the pulp in the solution for 30 – 60 minutes.
• Rinse the pulp to remove residual chlorine.

See more: >>> Concentrated Javen NaOCl bleach – Multi-purpose cleaning and disinfecting solution

Application of Javen water in Food & Medical Industry

Disinfection in the Food Industry

Specific Applications

• Seafood processing factory:
  • Clean processing table surfaces, cutting knives, and production tools to remove disease-causing bacteria.
  • Prevents the growth of Salmonella and E. coli bacteria, ensuring food safety.
• Milk and beverage factories:
  • Cleaning tanks and piping systems helps remove dirt and bacteria.
  • Ensure food safety and hygiene standards in the production line.
• Disinfection of cold storage and food transport vehicles:
  • Prevent the growth of mold and bacteria in the storage environment.
  • Make sure food is not cross-contaminated during transportation.

How to Use

• Disinfection concentration: 50 – 200 ppm depending on the level of contamination and type of surface.
• Contact time: 10 – 15 minutes for Javen to exert its antibacterial effect.
• Rinse with clean water to remove residual chlorine and avoid affecting food quality.

Disinfection in the Healthcare Industry

At medical facilities, hospitals, laboratories, Javen water plays an important role in disinfection, killing pathogens and preventing infection.

Specific Applications

• Disinfect operating rooms, hospital floors, and laboratories:
  • Minimize the risk of cross-infection in the medical environment.
  • Make sure the operating room surface and floor are free of disease-causing bacteria and viruses.
• Sterilize medical instruments:
  • Clean scalpels, needles, and surgical equipment to ensure patient safety.
  • Minimize the spread of dangerous viruses and bacteria such as MRSA, HIV, HBV.

How to Use Safely

• Dilute at a ratio of 1:10 or 1:20 depending on cleaning purposes and surface type.
• Do not directly inhale chlorine vapor, use in a well-ventilated environment. To avoid affecting the respiratory system.
• Use gloves and masks when working with Javen to ensure safety.

Notes When Using Javen Water

• Do not mix Javen with acid or ammonia, avoid creating toxic chlorine gas.
• Do not use on metals that are susceptible to corrosion such as aluminum or copper.
• Store in a dry place, away from sunlight, to ensure optimal disinfection effectiveness.

Application of Javen water in Industrial Cleaning & Cleaning

Cleaning & Disinfection in Industrial Systems

• Cleaning moss and mold on the surface of swimming pools, walls, and floors: Javen has the ability to remove moss and bacteria on the surface of ceramic tiles, concrete, and wood. Helps maintain a clean and safe environment.
• Cleaning industrial pipeline systems:
  • Removes dirt and bacteria accumulated in water supply and water treatment pipes.
  • Disinfect cooling systems and cooling towers, prevent biofilm formation that causes blockages.
  • Used in food, pharmaceutical and beverage processing factories. To ensure food hygiene and safety.

See more: >>> How to safely use Javel water (Sodium Hypochlorite) to disinfect at home?

Application of Javen water for Medical & Industrial Wastewater Treatment

• Disinfection of hospital and laboratory wastewater:
  • Destroys bacteria, viruses, and dangerous pathogens before being released into the environment.
  • Removes toxic organic compounds, helps neutralize residual chemicals in wastewater.
  • Applied in hospitals, research institutes, and medical facilities to ensure biosafety.
• Industrial wastewater treatment: Helps eliminate organic waste and azo compounds in the textile and dyeing industry.
  • Oxidizes and decomposes toxic compounds in production wastewater.

Important Notes When Using Javen in Industry

• Do not mix Javen with acids (HCl, sulfuric acid…) because the reaction will produce extremely toxic chlorine gas (Cl₂). Dangerous to humans.
• Dilute in the correct ratio before use to avoid corroding metal surfaces, ceramic tiles or damaging plumbing systems.
• Control dosage to suit each application. To ensure effectiveness without affecting the environment and health.
• Use in a well-ventilated environment with protective equipment. To avoid direct contact with concentrated chemicals.

Application of Javen water in the Aquaculture Industry

Disinfect the pond before stocking

• Use 2 – 5 ppm (2 – 5 mg/L of water) to kill bacteria and pathogens.
• After treatment, let the water stabilize and remove chlorine residue for 24 – 48 hours before stocking.

Disinfect water during farming

• Dilute Javen with clean water before adding to the pond.
• Use lower concentrations to avoid affecting the beneficial microflora in the pond.

And disinfect the pond before stocking

• Javen helps destroy bacteria, viruses, mold and other pathogens that exist in ponds.
• Remove organic impurities and toxic chemicals left over from previous farming sessions.
• Prevents the growth of harmful algae, helping to balance the pond ecosystem.

Using Javen in Aquaculture

Cleaning the Water Source During the Farming Process

• Use Javen to control pathogens in water without affecting the health of shrimp and fish.
• Supports water treatment in recirculating farming systems, keeping water clean and minimizing organic pollution.
• Eliminate toxic gases such as H₂S, NH₃ that can be harmful to aquatic animals.

Notes When Using Javen in Aquaculture

• Do not use Javen directly in high concentrations to avoid causing shock or injury to shrimp and fish.
• It is necessary to check the residual chlorine content before stocking to ensure safety.
• Do not use at the same time with other water treatment chemicals that have strong oxidizing properties to avoid unwanted chemical reactions.
• Ensure water pH is stable and does not fluctuate after treatment with Javen.

Application of Javen water in Construction Industry

Javen water (Sodium Hypochlorite – NaClO) is not only widely used in water treatment. It is also an effective cleaning and disinfection solution in the construction industry.

Cleaning Concrete Surfaces

• Remove stubborn stains: NaClO solution has the ability to break organic bonds. Helps clean cement stains, grease, and dirt that have accumulated over time on concrete surfaces.
• Increase adhesion to the coating: Concrete after cleaning with Javen will have a clean, dry surface. Helps the paint or coating material adhere more firmly, avoiding peeling.

Disinfect Construction Works Before Handover

Buildings after construction often contain many bacteria and mold due to humid conditions. Javen helps:

• Effective disinfection on wall surfaces, floors, and plumbing systems.
• Prevents mold growth. Make sure the space is clean and safe before handover.
• Used in disinfecting factories, warehouses, and construction areas at risk of infection.

Outstanding Advantages of Javen in Construction

• Strong cleaning ability: Can handle difficult-to-remove stains on concrete, tile floors, and metal.
• Antibacterial, anti-mold: Helps protect wall and floor surfaces from the growth of bacteria and mold.
• Low cost, high efficiency: Compared to other detergents. Javen is reasonably priced, easy to use, and delivers outstanding performance.
• Environmentally friendly: When used properly, Javen water helps minimize negative impacts on the environment compared to other harsh cleaning chemicals.

Where to buy reputable Javen water?

Javel is a very common chemical in life, with high demand. Because of that, there are many distribution brands, finding a reputable distribution unit is not easy. Vu Hoang is the industry leader in distributing swimming pool chemicals in general and Javen water in particular. All products Union provides have guaranteed documents and clear origin.

You will be advised on how to use it in detail, ensuring correct technique and safety. Customers can use it with peace of mind. Don’t hesitate any longer and contact us immediately at HOTLINE or Website: https://vuhoangco.com.vn.