Didecyldimethylammonium Chloride (Abbr: DDAC, CAS:72749-55-4,EINECS:276-806-1, HS Code:2923900000) is a colorless to pale yellow transparent liquid, a high-efficiency cationic quaternary ammonium biocide. We supply industrial, cosmetic and daily chemical grades complying with international quality standards. It features excellent water solubility, low foam, broad-spectrum bactericidal performance and good compatibility with surfactants. Widely used as disinfectant, bactericidal algaecide, preservative and antibacterial agent across multiple industries.
| Items | Specifications |
| DDAC Content | 50% / 80% Aqueous Solution |
| Appearance | Colorless to Pale Yellow Clear Liquid |
| pH Value (1% Solution) | 6.0–8.0 |
| Free Amine Content | ≤1.0% |
| Heavy Metals (as Pb) | ≤10 ppm |
| Color (Pt-Co) | ≤50 Hazen |
Applications
Water Treatment Industry (Core Application)
High-efficiency bactericidal algaecide for industrial circulating water, cooling towers, swimming pools, oilfield water injection and wastewater systems. It effectively kills bacteria, fungi and algae, inhibits biofilm formation, with long duration and good compatibility with scale and corrosion inhibitors.
Disinfection & Hygiene Products
Core active ingredient for household disinfectants, public place sanitizers, medical surface disinfectants and hand sanitizers. It provides broad-spectrum sterilization against Gram-positive and Gram-negative bacteria, fungi and enveloped viruses, with low irritation and no pungent odor.
Daily Chemical & Cosmetics
Widely used as antibacterial agent and preservative in shampoos, body washes, wet wipes, skin care products and household cleaners. It inhibits microbial growth, extends product shelf life and meets global cosmetic safety regulations.
Textile & Leather Industry
Applied as antibacterial finishing agent for textiles, non-woven fabrics and leather products. It endows materials with long-lasting antibacterial, anti-mildew and deodorant properties, suitable for household textiles, medical fabrics and leather goods.
Agriculture & Animal Husbandry
Used as farm environmental disinfectant, livestock house sanitizer and aquaculture water purifier. It controls pathogenic microorganisms, reduces disease transmission and improves breeding environment safety.
Wood & Paper Preservation
Used as anti-mildew and anti-corrosion agent for wood, paper and bamboo products. It effectively prevents mildew, rot and insect damage, extends service life of wood and paper materials.
Product Advantages
✅ Broad-spectrum bactericidal: Effective against bacteria, fungi, viruses and algae with wide antimicrobial spectrum
✅ Low foam & high efficiency: Low foam property suitable for circulating water systems, fast sterilization with low dosage
✅ Good compatibility: Compatible with most surfactants, scale inhibitors and corrosion inhibitors
✅ Low irritation: No skin or mucous membrane irritation at recommended concentrations, safe for daily use
✅ Long-lasting effect: Sustained antibacterial activity, no drug resistance developed by microorganisms
✅ Stable performance: Resistant to high temperature, acid and alkali, no decomposition under normal storage conditions
Packaging & Storage
Standard packaging: 50kg plastic drums, 200kg sealed HDPE drums or 1000kg IBC tanks. Store in a cool, dry and well-ventilated warehouse at 5–30°C. Keep containers tightly sealed, away from strong oxidants, anionic surfactants and direct sunlight. Shelf life is 24 months under proper storage conditions.
Safety Information
Classified as non-hazardous goods for regular transportation. May cause mild irritation to eyes and skin at high concentrations. Wear protective gloves and goggles during handling. In case of contact with skin or eyes, rinse immediately with plenty of clean water. Complete MSDS and relevant qualification certificates are available upon request.
With 15 years of experience in chemical foreign trade, we offer the following core strengths to support your procurement needs:
- 1.A 70,000 ㎡ warehouse (20,000 MT capacity) with moisture-proof and temperature-controlled systems, enabling efficient fulfillment of large-volume orders.
- 2.Free samples (Ship within 3-7 days) to let you test products at zero trial cost.
- 3.Transparent lead time for hazardous chemicals: 45–60 days, with clear delivery schedules.
- 4.Certified with a Hazardous Chemical Business License and ISO certification, ensuring smooth customs clearance.
- 5.6 packaging options with customizable logos to minimize product loss during transportation.
- 6.Over 400 chemical SKUs available for one-stop procurement, helping you reduce sourcing costs.
Please share your purchase volume, target market, and other requirements, and we will tailor a customized solution for you!
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