This Tetrahydrofuran, available in a 2.5 L glass container, falls under the category of Green Alternatives. It is an oxygen heterocycle with a Molecular Weight of 72.11 g/mol. In the workplace, it requires several precautions such as no open flames, no unauthorized persons, use of safety goggles, and wearing safety gloves. The European Union has recommended an indicative occupational exposure limit value of 150 mg/m3 (50 ppm) for an 8-hour workday and 300 mg/m3 (100 ppm) for short-term exposures.

• CAS Number: 109-99-9
• Molecular Formula: C4H8O
• Molecular Weight: 72.11
• Exact Mass: 72.057514874
• Boiling Point: 151 °F at 760 mmHg (NTP, 1992)
• Melting Point: -163.3 °F (NTP, 1992)
• Vapour Density: 2.5 (NTP, 1992) - Heavier than air; will sink (Relative to Air)
• GHS Signal Word: Danger
• Hazard Statements:
• H225: Highly Flammable liquid and vapor [Danger Flammable liquids]
• H315: Causes skin irritation [Warning Skin corrosion/irritation]