Calcium Oxide Lump (Quicklime) – Technical Grade, 1kg (UN Approved)

Calcium Oxide Lump, commonly known as Quicklime, is supplied in a robust 1kg pack and classified as Technical Grade (T). This inorganic compound is widely used in educational science laboratories for demonstrating chemical reactions involving oxides, especially those related to hydration, heat release, and alkalinity.

Identified by CAS Number: 1305‑78‑8 and UN Number: 1910, calcium oxide is a regulated substance that reacts vigorously with water to form calcium hydroxide. It must be handled with care and used strictly in accordance with laboratory safety procedures and COSHH risk assessments. Its dramatic exothermic reaction makes it particularly effective for controlled, teacher‑led demonstrations.

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 lump form
• Technical Grade (T)
• 1kg pack suitable for repeated demonstrations
• CAS No: 1305‑78‑8
• UN No: 1910
• Strongly alkaline and highly reactive with water
• Clearly labelled for safe storage and handling
• Supplied only to schools and educational establishments

Ideal for School Science Lessons

Calcium Oxide is most appropriate for GCSE and A‑Level chemistry lessons, particularly when studying metal oxides, exothermic reactions, and the chemistry of lime. Use should be teacher‑led and carried out with appropriate personal protective equipment.

• Demonstrating exothermic reactions
• Studying the reaction of metal oxides with water
• Preparing calcium hydroxide (slaked lime)
• Exploring alkalinity and pH changes
• Reinforcing laboratory safety and risk management

Supplied specifically for education and offering clear, impactful results, Calcium Oxide Lump (Quicklime) Technical Grade is a valuable teaching resource that helps students understand fundamental chemical principles while reinforcing safe and responsible laboratory practice.