3 4 5-Trichloropyridine（CAS# 33216-52-3)
| Hazard Symbols | Xi – Irritant |
| Risk Codes | R20/21/22 – Harmful by inhalation, in contact with skin and if swallowed. R36/37/38 – Irritating to eyes, respiratory system and skin. |
| Safety Description | S26 – In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 – Wear suitable protective clothing, gloves and eye/face protection. S36 – Wear suitable protective clothing. |
| WGK Germany | 3 |
| HS Code | 29333990 |
| Hazard Class | IRRITANT |
Introduction
3,4,5-Trichloropyridine is an organic compound. The following is an introduction to its nature, use, preparation method and safety information:
Quality:
- Appearance: 3,4,5-Trichloropyridine is a colorless to pale yellow liquid.
- Solubility: It is soluble in some organic solvents such as chloroform, benzene, and methanol.
- 3,4,5-Trichloropyridine is a strong basic compound.
Use:
- 3,4,5-Trichloropyridine is often used as a catalyst in organic synthesis, e.g. in chlorination and aromatization reactions.
- It can also be used as a synthetic intermediate and additive for polymer materials.
Method:
- The preparation method of 3,4,5-trichloropyridine usually uses the reaction of chloropyridine and chlorine gas. The specific steps involve cooling the reaction mixture and reacting it under chlorine-filled conditions for a period of time. Subsequently, the product is purified by distillation.
Safety Information:
- 3,4,5-Trichloropyridine is irritating and corrosive, contact with skin and eyes should be avoided, and protective gloves and goggles should be worn.
- When used or stored, it should be kept away from fire sources and high temperatures to avoid its flammability.
- When using 3,4,5-trichloropyridine, pay attention to good ventilation conditions to avoid gas inhalation.
- Follow relevant regulations and safety guidelines when handling or disposing of waste.
