CAS 95-47-6 o-xylene is a colorless, flammable aromatic hydrocarbon liquid with the molecular formula C6H4(CH3)2. It is primarily used in the petrochemical industry for the production of phthalic anhydride. o-Xylene is a hazardous chemical that requires strict safety precautions. It is a flammable liquid and vapour (Flash point: ~27–32°C), a skin/eye irritant, and an aspiration hazard,
Is o-Xylene liquid (CAS 95-47-6) Hazardous?
Yes. o-Xylene poses the following risks:
1. Flammability
o-Xylene is a highly flammable liquid and vapor. Its vapor can form an explosive mixture with air and is easily ignited by heat, sparks, or open flames.
2. Health Hazards
- Inhalation: May cause dizziness, headache, and central nervous system symptoms.
- Skin Contact: May cause irritation and dryness.
- Eye Contact: Irritates eyes.
- Long-Term Exposure: May affect the liver, kidneys, or nervous system.
3. Environmental Risks
Release into water bodies will harm aquatic life.
It must not be discharged into drains or soil.
o-Xylene Hazards identification
| Section | Hazard class | Category | Hazard class and category | Hazard statement |
|---|---|---|---|---|
| 2.6 | Flammable liquid | 3 | Flam. Liq. 3 | H226 |
| 3.1D | Acute toxicity (dermal) | 4 | Acute Tox. 4 | H312 |
| 3.1I | Acute toxicity (inhal.) | 4 | Acute Tox. 4 | H332 |
| 3.2 | Skin corrosion/irritation | 2 | Skin Irrit. 2 | H315 |
| 3.3 | Serious eye damage/eye irritation | 2 | Eye Irrit. 2 | H319 |
| 3.8R | Specific target organ toxicity - single exposure (respiratory tract irritation) | 3 | STOT SE 3 | H335 |
| 3.9 | Specific target organ toxicity - repeated exposure | 2 | STOT RE 2 | H373 |
| 3.10 | Aspiration hazard | 1 | Asp. Tox. 1 | H304 |
| Category | Content |
|---|---|
| Signal word | Danger |
| Pictograms |
GHS02 (Flammable), GHS07 (Irritant/Harmful), GHS08 (Health Hazard)
|
| Hazard statements |
H226: Flammable liquid and vapour H304: May be fatal if swallowed and enters airways H312+H332: Harmful in contact with skin or if inhaled H315: Causes skin irritationH319: Causes serious eye irritation H335: May cause respiratory irritation H373: May cause damage to organs (respiratory tract) through prolonged or repeated exposure |
Safe Handling Tips for o-Xylene
1. Use in a well-ventilated area: Always use in a chemical fume hood or with local exhaust ventilation to ensure airborne concentrations are below exposure limits.
2. Wear appropriate personal protective equipment: Wear chemically resistant gloves (nitrile rubber recommended), safety goggles or a face shield. Wear flame-retardant and antistatic clothing.
3. Keep away from sources of ignition: Keep away from heat, sparks, open flames, and hot surfaces. Smoking is prohibited.
4. Prevent electrostatic discharge: Ground containers and equipment during transfer to prevent electrostatic sparks.
5. Avoid contact: Never inhale vapors or mists. Avoid contact with skin and eyes. Clean thoroughly after handling.
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