Compound Names: Acetic Acid
Molecular Formula: CH3COOH
Molecular Weight: 60.05 g/mol
CAS (Chemical Abstracts Service) Number: 64-19-7
Physical Properties:
- Physical Appearance: Clear, colorless liquid
- Boiling Point: 118.1 °C
- Melting Point: 16.6 °C
- Relative Density (water = 1): 1.049 g/mL
- Solubility in Water, g/100 ml at 20°C: Miscible
- Vapor Pressure, kPa at 20°C: 11.3 kPa
- Relative Vapor Density (air = 1): 2.07
- Relative Density of Vapor/Air Mixture at 20°C (air = 1): 1
- Flash Point: 39 °C (closed cup)
- Autoignition Temperature: 465 °C
- Explosive Limits, % volume in the air: 4.0 - 19.0%
- Partition Coefficient octanol/water as log Pow: -0.31
Chemical Hazards:
- Exposure Limits:
- TLV-TWA: 10 ppm (ACGIH)
- STEL: 15 ppm (ACGIH)
- Exposure Routes: Inhalation, ingestion, skin contact
- Inhalation Risk: Low risk of inhalation exposure
- Short-term Exposure Effects: Irritation of the eyes, nose, and throat
- Long-term or Repeated Exposure Effects: Prolonged exposure may cause dermatitis.
Fire and Explosion Hazard, Extinguishing Methods:
- Fire and Explosion Hazard: Combustible liquid
- Extinguishing Methods: Use water spray, foam, dry chemical, or carbon dioxide.
Inhalation: Symptoms and First Aid:
- Symptoms: Irritation of the respiratory tract
- First Aid: Move to fresh air, provide respiratory assistance if needed.
Skin Contact: Symptoms and First Aid:
- Symptoms: Mild irritation, redness
- First Aid: Wash affected area with soap and water, remove contaminated clothing.
Ingestion: Symptoms and First Aid:
- Symptoms: Abdominal pain, nausea
- First Aid: Do not induce vomiting, seek medical attention.
Eye Contact: Symptoms and First Aid:
- Symptoms: Irritation, redness
- First Aid: Rinse eyes with plenty of water for several minutes, seek medical attention if irritation persists.