Marble Chips 6–9mm – 3kg (Calcium Carbonate)

Marble Chips (6–9mm), also known as Calcium Carbonate Lumps, are supplied in a durable 3kg pack suitable for regular use in educational science laboratories. Produced to Laboratory Reagent (LR) grade, these natural limestone chips are ideal for practical chemistry experiments and classroom demonstrations.

Identified by CAS No. 471‑34‑1 and classified as Not Regulated for transport (UN: NR), marble chips are easy to store and handle in school laboratory settings. Their consistent size range of 6–9mm allows for predictable reaction rates and repeatable results during practical work.

Marble chips are widely used in chemistry education to demonstrate carbonate reactions, gas preparation, and reaction rate investigations. Clear labelling supports safe handling in accordance with COSHH and standard school laboratory procedures.

Key Features

• Marble Chips (Calcium Carbonate)
• Chip size: 6–9mm
• 3kg bulk pack – ideal for repeated class experiments
• Laboratory Reagent (LR) grade
• CAS No: 471‑34‑1
• UN Classification: Not Regulated (NR)
• Natural limestone with consistent sizing
• Clearly labelled for educational laboratory use

Ideal for School Science Lessons

Marble chips are a staple material for KS3, GCSE, and A‑Level chemistry lessons, supporting a wide range of curriculum‑linked practical activities when used under appropriate supervision. They are commonly used for:

• Preparing carbon dioxide gas using acid–carbonate reactions
• Investigating reaction rates and surface area effects
• Studying the properties of carbonates
• Supporting lessons on the carbon cycle
• Developing safe handling and practical laboratory skills

Durable, reliable, and closely aligned with the secondary science curriculum, these marble chips provide a hands‑on way for students to explore fundamental chemical reactions while reinforcing good laboratory practice.