1,3-Dichloro-5,5-dimethylhydantoin
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Category：Agrochemicals | Brand：MT
Factory Direct
7-30 Days Lead Time
MOQ: 100KG
Global Export
Introduction
1,3-Dichloro-5,5-dimethylhydantoin (DCDMH, CAS No. 118-52-5)
1. Basic Information
- IUPAC Name: 1,3-Dichloro-5,5-dimethylimidazolidine-2,4-dione
- Synonyms:
- DCDMH
- Halane® (commercial name)
- CAS Number: 118-52-5
- Molecular Formula: C₅H₆Cl₂N₂O₂
- Molecular Weight: 197.02 g/mol
- Appearance: White crystalline powder
- Odor: Strong chlorine-like odor
2. Physical and Chemical Properties
| Property | Value |
|---|---|
| Melting Point | 132–135°C (270–275°F) |
| Solubility (25°C) | – Water: 0.2 g/100 mL |
| – Organic solvents: Soluble in acetone, chloroform | |
| Active Chlorine | 56–60% (theoretical: 72%) |
| pH (1% solution) | 3.0–5.0 (acidic) |
3. Chemical Structure
Cl
|
O=C-N-CH₃
| |
N C=O
| |
CH₃ Cl
4. Hazards (GHS Classification)
- Oxidizing Properties: May intensify fire (H272)
- Acute Toxicity:
- Harmful if swallowed (H302)
- Causes severe skin burns (H314)
- Environmental: Very toxic to aquatic life (H400)
- NFPA Rating: Health 3, Flammability 0, Reactivity 2 (Oxidizer)
5. Storage and Handling
- Storage:
- Keep in original containers away from heat/flames
- Store separately from acids, ammonia, and reducing agents
- Handling:
- Use chemical-resistant gloves (neoprene/Viton®) + face shield
- Work in well-ventilated areas
6. Applications
- Water Treatment:
- Slow-release disinfectant for swimming pools
- Bleaching Agent:
- Textile and pulp bleaching
- Organic Synthesis:
- Chlorinating agent for pharmaceuticals
Disclaimer:
The above content is for reference and communication only among industry insiders, and does not guarantee its accuracy or completeness. According to relevant laws and regulations and the regulations of this website, units or individuals who purchase related items should obtain valid qualifications and qualification conditions.
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