Product Details
| Product Name: Didecyl dimethyl ammonium chloride/DDAC | CAS No.: 7173-51-5 |
| EC-No.: 230-525-2 | Min. Order: 1kg |
| Purity: 50%,80% | Supply Ability: 20 TONS |
| Release date: 2026/01/16 |
Items | Specifications | Results |
Appearance | Yellowish to yellow cream | Pass |
Active content (%) | ≥99 | 99.14 |
Color | ≤200 Hazen | 93 |
pH(10% aqueous solution) | ≤0.8 | 0.61 |
Conclusion | Qualified | |
Didecyl dimethyl ammonium chloride (DDAC) is a synthetic chemical belonging to the quaternary ammonium compound family ("quats"), similar to benzalkonium chloride but often considered more potent and stable.
Primary Function:
It is a powerful disinfectant, sanitizer, and algicide. Its positively charged molecules disrupt and destroy the cell membranes of bacteria, viruses, fungi, and mold, effectively killing them.
Common Applications:
Its strength makes it a key ingredient in industrial and agricultural disinfectants rather than common consumer products. Uses include:
Surface Disinfectants: For hospitals, veterinary clinics, and farms.
Algicides: For treating water in pools, cooling towers, and industrial water systems.
Wood Preservatives: To protect against mold and rot.
Agricultural Biocides: Used in sanitizing equipment and facilities.
Key Considerations:
Potency: It is valued for its broad-spectrum efficacy and stability.
Toxicity: It is a severe irritant to the skin, eyes, and respiratory tract. It is harmful if swallowed and requires careful handling.
Environmental Impact: It is highly toxic to aquatic life and persistent in the environment.
In summary, DDAC is a heavy-duty antimicrobial agent primarily used in industrial, agricultural, and institutional settings where its powerful disinfecting properties are necessary.



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