This 2.5 L Formaldehyde Solution is classified under concentrated formaldehyde solutions, used primarily for histological and microscopic fixation purposes. It has a CAS Number of 50-00-0 and falls under the substance groups Aldehydes and Organic gases. The solution requires stringent workplace precautions, including prohibiting smoking, no unauthorized personnel, no eating or drinking, caution signs for toxic and corrosive materials, mandatory use of safety goggles and gloves, and specific handling instructions due to its potential for causing skin sensitization and acute toxicity. The European Union has set an 8-hour limit value of 0.37 mg/m3 (0.3 ppm) and a short-term limit value of 0.74 mg/m3 (0.6 ppm) for occupational exposure.

• CAS Number: 50-00-0
• Molecular Formula: CH2O
• Molecular Weight: 30.026
• Exact Mass: 30.010564683
• Boiling Point: -6 °F at 760 mmHg (NIOSH, 2024)
• Melting Point: -134 °F (NIOSH, 2024)
• Vapour Density: 1.04 (NIOSH, 2024) - Heavier than air; will sink (Relative to Air)
• GHS Signal Word: Danger
• Hazard Statements:
• H302: Harmful if swallowed [Warning Acute toxicity, oral]
• H301 (83.1%): Toxic if swallowed [Danger Acute toxicity, oral]
• H314: Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]
• H220: Extremely flammable gas [Danger Flammable gases]
• H227: Combustible liquid [Warning Flammable liquids]