1,3-Dichloro-5,5-dimethylhydantoin (CAS 118-52-5) Ultimate User Guide
Table of Contents
- Product Overview & Specifications
- Applications & Industry Uses
- Usage Guidelines & Best Practices
- Case Studies & Real-World Scenarios
- Client Success Stories
- Request Quotation/Samples
1. Product Overview & Specifications
| Parameter | Value |
|---|---|
| CAS Number | 118-52-5 |
| Molecular Formula | C5H6Cl2N2O2 |
| Molecular Weight | 205.02 g/mol |
| Appearance | White crystalline powder |
| Active Chlorine Content | 56-58% |
| Melting Point | 132-136°C |
| Solubility | Slightly soluble in water, soluble in organic solvents |
Comparison with Alternatives
| Feature | 1,3-Dichloro-5,5-dimethylhydantoin | Trichloroisocyanuric Acid |
|---|---|---|
| Chlorine Release Rate | Controlled | Rapid |
| pH Stability | Broad range (4-10) | Narrow optimal range |
| Storage Safety | Non-hygroscopic | Moisture-sensitive |
2. Applications & Industry Uses
Water Treatment
Widely used in cooling towers, swimming pools, and industrial wastewater systems for microbial control.
Disinfection
Effective in food processing equipment sanitization, healthcare surface disinfection (1,000-2,000 ppm solutions).
Industrial Processes
Oxidizing agent in chemical synthesis and textile bleaching operations (typical dosage: 0.5-3% w/w).
3. Usage Guidelines
Dosage Recommendations
| Application | Concentration | Contact Time |
|---|---|---|
| Drinking Water | 2-4 mg/L | 30 min |
| Surface Disinfection | 0.1-0.5% | 10-15 min |
Safety Protocols
Always use PPE including nitrile gloves and eye protection. Store in cool (<30°C), dry conditions separated from acids.
4. Implementation Case Studies
Cooling Tower Biofilm Removal
Chemical plant in Ohio achieved 99.9% Legionella reduction using 15 ppm continuous dosing system.
Dairy Equipment Sanitization
European processor eliminated coliform contamination with 0.3% solution rinse cycles (25% cost reduction vs. hypochlorite).
5. Client Success Stories
Client A: Municipal Water Plant
Location: Texas, USA | Challenge: Trihalomethane formation | Solution: Switched from chlorine gas to DCDMH tablets | Result: 40% THM reduction while maintaining 0.5 ppm residual chlorine.
Client B: Food Processing Co.
Location: Guangdong, China | Issue: Mold in packaging area | Our Solution: 0.2% fogging treatment every 72 hours | Outcome: Zero microbial counts for 6+ months.
6. Get Customized Solutions
Contact our technical team for formulation assistance or bulk pricing:
Email: info@vivalr.com
Tel: (86) 15866781826
Request SDS, COA, or application notes:
| Document | Format | Delivery Time |
|---|---|---|
| SDS | 2 hours | |
| COA | Excel/PDF | 1 business day |



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