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.