This 1 liter container holds propionic acid, a carboxylic acid used for fixing mixtures in life science applications, specifically within histology and microscopy. It has a Molecular Weight of 74.08 g/mol and is classified under substance groups including Carboxylic acids. The workplace requires various precautions due to its properties, such as the use of safety goggles and gloves, prohibiting open flames, and setting national occupational exposure limits (e.g., 8 hours limit value: 31 mg/m3 or 10 ppm, short term limit value: 62 mg/m3 or 20 ppm).

• CAS Number: 79-09-4
• Molecular Formula: C3H6O2
• Molecular Weight: 74.08
• Exact Mass: 74.036779430
• Boiling Point: 285.3 °F at 760 mmHg (NTP, 1992)
• Melting Point: -6.7 °F (NTP, 1992)
• Vapour Density: 2.56 (NTP, 1992) - Heavier than air; will sink (Relative to Air)
• GHS Signal Word: Danger
• Hazard Statements:
• H314: Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]
• H226 (20.3%): Flammable liquid and vapor [Warning Flammable liquids]
• H302: Harmful if swallowed [Warning Acute toxicity, oral]