Chlorotriphenyltin
Agrochemicals 2025-03-02
Chlorotriphenyltin (CAS No. 639-58-7)
1. Basic Information
- IUPAC Name: Chlorotriphenylstannane
- Synonyms:
- Triphenyltin chloride
- Fentin chloride
- TPTC
- CAS Number: 639-58-7
- Molecular Formula: C₁₈H₁₅ClSn
- Molecular Weight: 385.47 g/mol
- Appearance: White crystalline powder
- Odor: Odorless
2. Physical and Chemical Properties
| Property | Value |
|---|---|
| Melting Point | 103–106°C (217–223°F) |
| Solubility | – Water: Insoluble |
| – Organic solvents: Soluble in benzene, chloroform, acetone | |
| Density | 1.49 g/cm³ (20°C) |
| Vapor Pressure | <0.1 mPa at 25°C |
3. Hazards (GHS Classification)
- Acute Toxicity:
- Fatal if swallowed (H300)
- Fatal in contact with skin (H310)
- Fatal if inhaled (H330)
- Environmental:
- Very toxic to aquatic life (H410)
- Persistent and bioaccumulative (H413)
- NFPA Rating: Health 4, Flammability 1, Reactivity 1
4. Storage and Handling
- Storage:
- Keep in tightly sealed containers under inert gas
- Store in a cool, dry, well-ventilated area (2–8°C recommended)
- Handling:
- Use full-face respirator with organic vapor cartridge
- Wear chemical-resistant suit and neoprene gloves
- Handle only in fume hood with ≥100 fpm face velocity
5. Applications
- Agrochemicals:
- Fungicide for potatoes and sugar beets (banned in many countries)
- Industrial:
- PVC stabilizer (historical use)
- Research:
- Catalyst in organic synthesis
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