Calcium Oxide Fine Powder (Quicklime) – LR Grade, 500g (UN Approved)

Calcium Oxide Fine Powder, commonly known as Quicklime, is supplied in a 500g pack and manufactured to Laboratory Reagent (LR) grade. The fine powder form provides a large surface area, making it particularly suitable for controlled laboratory reactions and clearly observable demonstrations in educational settings.

Identified by CAS Number: 1305‑78‑8 and UN Number: 1910, calcium oxide is a regulated substance that reacts readily with water to form calcium hydroxide, releasing heat in a strongly exothermic reaction. Due to its reactivity and alkalinity, it must be handled with care and used in accordance with appropriate laboratory safety procedures and COSHH risk assessments.

Please note: this product is supplied exclusively to educational establishments. Orders are shipped only to school addresses and are intended for supervised educational use.

Key Features

• Calcium Oxide (Quicklime) in fine powder form
• Laboratory Reagent (LR) grade
• 500g pack – ideal for repeated school demonstrations
• CAS No: 1305‑78‑8
• UN No: 1910
• Highly reactive and strongly alkaline
• Fine powder for rapid, visible reactions
• Clearly labelled for safe storage and handling
• Supplied only to schools and educational establishments

Ideal for School Science Lessons

Calcium Oxide Fine Powder is particularly suitable for GCSE and A‑Level chemistry lessons, especially when teaching metal oxides, energy changes, and alkaline substances. Use should be teacher‑led and carried out with appropriate personal protective equipment.

• Demonstrating exothermic reactions
• Studying the hydration of metal oxides
• Preparing calcium hydroxide (slaked lime)
• Exploring alkalinity and pH changes
• Reinforcing concepts of chemical reactivity and safety

Clearly packaged and supplied specifically for education, Calcium Oxide Fine Powder LR Grade is a powerful and effective teaching aid that helps students understand fundamental chemical processes while reinforcing the importance of safe laboratory practice.