2,5-Dimethylpyrrole
Product name: 2,5-Dimethylpyrrole
Synonym(s): 2,5-Dimethyl-1H-pyrrole
CAS Number: 625-84-3
Introduction
| Product name | 2,5-Dimethylpyrrole |
| CAS No. | 625-84-3 |
| Test Items | Specifications |
| Appearance | Colorless or light yellow liquid |
| Purity | ≥99% |
| Loss on drying | ≤0.5% |
Safety Precautions for 2,5-Dimethylpyrrole (CAS 625-84-3)
⚠️ Hazard Identification
- GHS Classification:
- Flammable Liquid (Category 3)
- Acute Toxicity (Oral/Skin/Inhalation, Category 3)
- Skin/Eye Irritation (Category 2)
- Pictograms: ‼️ (Flame, Exclamation Mark)
- Signal Word: Danger
🧤 Handling Precautions
- Personal Protective Equipment (PPE):
- Wear chemical-resistant gloves (nitrile/neoprene).
- Use safety goggles and face shield.
- Equip with vapor-certified respirator (e.g., NIOSH-approved).
- Wear flame-resistant lab coat/apron.
- Operational Controls:
- Use exclusively in a fume hood with ≥0.5 m/s face velocity.
- Ground containers to prevent static discharge.
- Avoid contact with oxidizers, acids, or bases.
- No open flames/sparks within 50 m (flash point: 54.4°C).
📦 Storage Requirements
- Store in airtight containers under inert gas (N₂/Ar).
- Keep in a cool (<25°C), dark, ventilated area.
- Refrigerate at 2-8°C for long-term storage.
- Segregate from: Oxidizers, acids, ignition sources.
🚨 Emergency Response
- Inhalation:Immediately move to fresh air. Administer oxygen if breathing is impaired. Seek medical help.
- Skin Contact:Remove contaminated clothing. Wash skin with copious water + soap for ≥15 mins.
- Eye Contact:Rinse eyes with running water for ≥15 mins (hold eyelids open). Consult ophthalmologist.
- Ingestion:Do NOT induce vomiting. Rinse mouth. Call poison control (1-800-222-1222 in US).
🔥 Firefighting Measures
- Use alcohol-resistant foam, CO₂, or dry chemical extinguishers.
- Never use water jets (spreads fire).
- Cool containers with water spray to prevent explosion.
⚡ Spill Management
- Evacuate non-essential personnel.
- Eliminate ignition sources.
- Wear: SCBA + chemical suit + rubber boots.
- Contain spill with inert absorbents (vermiculite/sand).
- Collect residues in UN-certified hazardous waste containers.
♻️ Disposal
- Dispose as hazardous waste (EPA D001/D003 codes).
- Incinerate in facilities equipped for nitrogenous compounds.
Regulatory Compliance:
- US (OSHA): 29 CFR 1910.1200
- EU (REACH): Annex XVII
- China: GB 13690-2009
