Grade A Porcelain Crucible Lids – Squat Form 25ml (Pack of 10)

These Grade A Porcelain Crucible Lids are designed to fit squat‑form 25ml porcelain crucibles, providing secure coverage and enhanced control during high‑temperature laboratory work. Supplied as a pack of 10, they are manufactured in accordance with a certified ISO 9001:2000 production quality management system, ensuring consistent quality, durability, and reliability for educational use.

Manufactured from premium laboratory porcelain, these crucible lids are renowned for their excellent thermal and chemical resistance. Their robust construction allows them to withstand temperatures of 1100°C+ under suitable conditions, making them ideal for repeated use in school laboratories, prep rooms, and controlled classroom demonstrations.

When paired with compatible squat‑form crucibles, these lids help to reduce heat loss, minimise contamination, and limit spitting or sample loss during strong heating. This contributes to safer working practices and more accurate, consistent experimental results.

Key Features

• Grade A porcelain crucible lids
• Designed for squat‑form 25ml crucibles
• Supplied as a pack of 10
• Manufactured under ISO 9001:2000 certification
• Withstands temperatures up to 1100°C+
• Excellent thermal shock resistance
• High chemical resistance
• Supports controlled heating and reduces material loss
• Suitable for school and laboratory environments

Ideal for School Science Lessons

These porcelain crucible lids are ideal for use in KS3, GCSE, and A‑Level chemistry lessons, where safe and controlled heating is essential. They support good laboratory technique while helping students achieve reliable and repeatable experimental outcomes.

• Covering crucibles during strong heating of solids
• Reducing sample loss during thermal decomposition reactions
• Improving temperature stability in high‑heat experiments
• Supporting safe handling of hot laboratory equipment
• Enhancing accuracy in practical chemistry investigations

Durable, heat‑resistant, and designed for classroom use, these Grade A 25ml Porcelain Crucible Lids are an essential accessory for safe, professional, and effective science teaching.