This 1 liter solution contains Formaldehyde, an organic aldehyde with the molecular formula CH2O. It is classified as a dangerous substance due to its toxicity, corrosiveness, and potential to cause skin burns and eye damage. The solution has a Vapour Density heavier than air, which means it will sink. According to the European Union's Directive 2019/983/EU, the occupational exposure limit value is 0.37 mg/m3 (0.3 ppm), with transitional measures allowing a higher limit value of 0.62 mg/m3 or 0.5 ppm in certain sectors until 2024. Safety precautions include wearing safety goggles, safety gloves, and avoiding smoking, eating, and drinking near the substance.

• 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]