RO Membrane Antioxidant & Dechlorination Chemical – Hydrex 4301

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What Is an RO Membrane Antioxidant/Dechlorination Chemical?

Dechlorination and Antioxidant Chemicals are commonly used in water treatment to remove residual chlorine, protect RO membranes, and prevent oxidation processes in industrial water systems. Some commonly used chemicals include:

Functions of Hydrex 4301 – RO Membrane Antioxidant & Dechlorination Agent

Hydrex 4301 is an industrial water treatment chemical manufactured by Veolia Water Technologies. It is a liquid-form reducing agent designed for use in various water treatment systems.
Hydrex 4301 functions as a chlorine neutralizer and antioxidant, specifically formulated for use in reverse osmosis (RO) systems with polyamide membrane materials.

Composition of Hydrex 4301 – RO Membrane Antioxidant & Dechlorination Chemical

• Sodium Metabisulfite (Na₂S₂O₅): Comprises 30% to less than 40% by weight. A strong reducing agent, it removes dissolved oxygen and free chlorine in water.

• Other Non-Hazardous Ingredients: Comprise 60% to less than 70% by weight.

What is Sodium Metabisulfite (Na₂S₂O₅)?

Sodium Metabisulfite is a powerful reducing compound, stronger than Sodium Bisulfite (NaHSO₃), and is commonly used for dechlorination and oxidation prevention in water treatment.

Advantages:

• Dry powder form, more stable than NaHSO₃.

• Upon dissolving in water, it forms Sodium Bisulfite, which neutralizes chlorine.

• Widely used in large-scale water treatment systems.

Working Mechanism of Hydrex 4301

1. Chlorine Removal

The main component of Hydrex 4301, Sodium Metabisulfite, hydrolyzes in water to produce Sodium Bisulfite (NaHSO₃), which reacts with free chlorine:

NaHSO₃ + Cl₂ + H₂O → NaHSO₄ + HCl

This reaction removes excess chlorine, protecting sensitive membrane materials from degradation.

2. Dissolved Oxygen Removal

Hydrex 4301 also reacts with dissolved oxygen in water through the following reaction:

Na₂S₂O₅ + H₂O → 2NaHSO₄ + H₂O₂

This reduces oxygen levels in the system, helping to prevent oxidation and corrosion of metal components.

Benefits of Hydrex 4301

• ✅ Safe for water treatment systems

• ✅ Cost-effective: Highly concentrated liquid formulation provides efficient performance at a reasonable cost

• ✅ Easy to use: Liquid form dissolves easily and is compatible with dosing pumps

How to Use Hydrex 4301

📌 Dosage: Depends on the incoming water quality; dosage should be adjusted accordingly.
📌 Chemical Feeding: Use a dosing pump to inject into the recirculating water stream.
📌 Routine Monitoring: Regularly check chemical concentration, water hardness, and pH to ensure optimal performance.

Precautions When Using Hydrex 4301

• Dose control: Overdosing may excessively reduce dissolved oxygen levels in water.

• Storage: Store in a cool, dry place. Keep containers tightly sealed and away from oxidizing agents.

• Safety: The product is corrosive to skin and clothing. Always wear gloves, goggles, and protective clothing when handling.

• Emergency Handling: In case of contact with skin or eyes, rinse immediately with clean water and seek medical attention if necessary.

Where to Buy Hydrex 4301 in Vietnam?

Wasol is the official nationwide supplier of Hydrex 4301 – RO Membrane Antioxidant & Dechlorination Chemical.

Why Choose Wasol?

• ✅ Genuine Products: Trusted provider of premium water treatment solutions

• ✅ Technical Support: Expert team available for consultation and usage guidance

• ✅ Competitive Pricing: Attractive prices and loyalty discounts

• ✅ Nationwide Delivery: Fast and reliable shipping across Vietnam

Contact Information

• Address: 57/14-16 Tô Hiệu, Phú Thạnh Ward, Ho Chi Minh City, Vietnam

• Phone: (028) 3961 0884 – Hotline: 090 668 8934

• Email: info@wasol-vn.com

• Website: www.wasol-vn.com