GuardExo DBN 20

1. Product Identification

  • Product Name: GuardExo DBN 20

  • Brand: Chemtiver

  • Active Ingredient: 2,2-Dibromo-3-nitrilopropionamide (DBNPA)

  • CAS Number: 10222-01-2

  • Appearance: Colorless to amber (or slightly yellow), clear liquid

  • Solvent System: Glycol (PEG) and water

2. Typical Physicochemical Properties

PropertySpecification / Typical Value
Active DBNPA Concentration20% w/w
AppearanceColorless to amber/yellow liquid
Density (g/cm³)~1.19–1.20
Specific Gravity (at 23 °C)Approx. 1.20–1.30
SolubilityFully miscible in water

3. Mechanism of Action

DBNPA acts as a fast-acting, non-oxidizing, broad-spectrum biocide. It targets sulfur-containing (-SH) groups in microbial enzymes, converting them into disulfides. This reaction disrupts enzyme function and leads to rapid microbial cell death within 5–10 minutes.

4. Applications & Recommended Use

GuardExo DBN 20 is ideal for:

  • Industrial Water Treatment: Cooling towers, recirculating systems, RO/NF membranes, and evaporative condensers

  • Paper & Slurry Preservation: Controls slime and acts as a preservative

  • Paints, Coatings, Adhesives: Prevents microbial degradation

  • Oilfield & EOR Systems: Effective biocide for water and oil recovery systems

5. Handling & Emergency Measures

  • PPE Requirements: Use chemical-resistant gloves, safety goggles or face shield, and appropriate protective clothing

  • First Aid:

    • Eyes: Rinse with water for at least 15 minutes; seek medical help

    • Skin: Wash with soap and water; remove contaminated clothing

    • Ingestion: Do not induce vomiting; seek immediate medical attention

  • Spill Response: Contain the spill, absorb with inert material, and dispose according to local environmental regulations

  • Fire Hazard: Product decomposes around 70 °C; avoid water-based extinguishing agents if the chemical is reactive—use appropriate media

6. Summary

GuardExo DBN 20, formulated by Chemtiver, is a fast-acting, broad-spectrum, non-oxidizing biocide known for:

  • Effective microbial control

  • Rapid decomposition and minimal residue

  • Versatility in water treatment and industrial preservation

⚠️ Due to its corrosive nature and toxicity, strict safety precautions and adherence to regulatory guidelines are essential during handling and application.

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