ADBAC Quaternary Biocide 50% — CHIMICIDE BAC 50
C₂₁H₃₈ClN
Alkyl benzyl dimethyl ammonium chloride (ADBAC) is a quaternary ammonium biocide and film-forming corrosion inhibitor. CHIMICIDE BAC 50 supplies it as a clear liquid at 50% active content with triple action in one product: corrosion inhibition, antibacterial control and algae control, plus fungicidal, deodorizing and antistatic properties. It is fully water-miscible, compatible with cationic, non-ionic and amphoteric media, and supplied by CHIMI ART in 200 L drums and 1000 L IBCs.
Product Overview
Alkyl benzyl dimethyl ammonium chloride (ADBAC) is a quaternary ammonium biocide and film-forming corrosion inhibitor. CHIMICIDE BAC 50 supplies it as a clear liquid at 50% active content with triple action in one product: corrosion inhibition, antibacterial control and algae control, plus fungicidal, deodorizing and antistatic properties. It is fully water-miscible, compatible with cationic, non-ionic and amphoteric media, and supplied by CHIMI ART in 200 L drums and 1000 L IBCs.
Technical Specifications
- Chemical Formula
- C₂₁H₃₈ClN
- Appearance
- Clear liquid
- Concentration
- 50% ADBAC active
- pH Range
- 6.0-8.0
- Solubility
- Fully miscible with water
- Available Packaging
- 200L drums · 1000L IBC
- Shelf Life
- 12 months
- Storage Conditions
- Cool, dry place
| Property | Value |
|---|---|
| Chemical Formula | C₂₁H₃₈ClN |
| Appearance | Clear liquid |
| Concentration | 50% ADBAC active |
| pH Range | 6.0-8.0 |
| Solubility | Fully miscible with water |
| Available Packaging | 200L drums · 1000L IBC |
| Shelf Life | 12 months |
| Storage Conditions | Cool, dry place |
Applications
Dosing Guidelines
Typical dosing is 50-200 ppm for biocide applications and 100-500 ppm for corrosion inhibition, with the product effective across a broad pH range of 4-10. Slug (shock) dosing at intervals is common for microbial control in recirculating systems, while corrosion-inhibition programs generally hold a continuous residual. Set the working dose from the low end of the range and adjust against monitoring — microbiological counts, algae observation and corrosion coupons — because organic loading and anionic contaminants consume active material. Avoid co-dosing with anionic treatment chemicals, which neutralise the quaternary cation. Our technical team can help design a program for your system.
How It Works
ADBAC is a cationic surfactant: each molecule pairs a positively charged quaternary nitrogen with a long hydrophobic alkyl chain. Microbial cell envelopes carry a net negative charge, so the cation is drawn to the cell surface, where the alkyl chain inserts into the membrane's lipid layer. This disrupts membrane integrity, causes leakage of cell contents and inactivates bacteria, algae and fungi — the basis of its antibacterial, algaecide and fungicidal action. The same surface activity underlies its second role: the cationic head adsorbs onto negatively charged metal surfaces, orienting the hydrocarbon tails outward to form a thin hydrophobic film that restricts access of dissolved oxygen and corrosive species to the metal. Because activity relies on the free cation, effectiveness is reduced by anionic surfactants and heavy organic fouling, which should be considered when designing the treatment.
Usage Tips
Store CHIMICIDE BAC 50 in closed original containers in a cool, dry, ventilated area away from direct sunlight and strong oxidisers; shelf life is 12 months. Quaternary ammonium concentrates are corrosive to eyes and skin, so wear chemical-resistant gloves, goggles and protective clothing, and dilute by adding product to water. Do not mix the concentrate with anionic surfactants or oxidising biocides in the same tank. Rinse dosing equipment after use and consult the SDS for first-aid and spill procedures.
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Frequently Asked Questions
What does the '50' in CHIMICIDE BAC 50 mean?
It denotes 50% ADBAC (alkyl benzyl dimethyl ammonium chloride) active content. Supplying the quat as a 50% concentrate reduces freight and packaging per kilogram of active material and lets you dilute to the working strength each application needs.
How does one product act as biocide and corrosion inhibitor at the same time?
Both actions come from the same cationic surfactant structure. The positively charged molecule disrupts negatively charged microbial membranes — controlling bacteria, algae and fungi — and adsorbs onto metal surfaces to form a thin hydrophobic film that slows corrosion. Typical programs run 50-200 ppm for microbial control and 100-500 ppm for corrosion inhibition.
What chemicals should not be mixed with CHIMICIDE BAC 50?
Anionic surfactants and anionic polymers neutralise the quaternary cation and destroy activity, and strong oxidisers can degrade it. It is compatible with cationic, non-ionic and amphoteric media. Review your full treatment program before adding the quat, and dose from a separate point.
Over what pH range is ADBAC effective?
CHIMICIDE BAC 50 remains effective across a broad pH range of approximately 4-10, which covers most cooling water and industrial water systems. Performance in a specific system should still be confirmed by microbiological monitoring after start-up.
What are typical applications for CHIMICIDE BAC 50?
Microbial and algae control combined with corrosion inhibition in recirculating and industrial water systems, plus fungicidal, deodorizing and antistatic duties in wider industrial use. It is supplied in 200 L drums and 1000 L IBCs; contact our team for application-specific guidance.
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