Spectrum Tube – Iodine (Straight Form, 260mm) KS5 [1430]

The Spectrum Tube – Iodine is a specialist discharge tube designed for KS5 and A‑Level physics teaching. It allows students to observe the characteristic emission spectrum of iodine, supporting advanced study of atomic and molecular spectra, electron transitions, and quantum theory.

This straight‑form spectrum tube has an overall length of 260mm and includes a 50mm long fine capillary tube. The narrow capillary concentrates the electrical discharge, producing clear, well‑defined spectral lines suitable for detailed observation using spectroscopes or diffraction gratings.

For safe and effective classroom use, the iodine spectrum tube is recommended for use with a Spectrum Tube Holder and compatible Power Supply. This ensures stable positioning and correct operating conditions during demonstrations and student investigations.

Key Features

• Iodine spectrum tube for emission spectroscopy
• Suitable for KS5, A‑Level, and advanced physics education
• Straight form construction
• Overall length: 260mm
• 50mm fine capillary tube for sharp, visible spectral lines
• Recommended for use with a spectrum tube holder and power supply
• Ideal for demonstration and analytical spectroscopy work
• Product code: [1430]

Ideal for KS5 Physics & Spectroscopy Lessons

This iodine spectrum tube is ideal for use in KS5 and A‑Level physics lessons, where students study emission spectra and the behaviour of excited atoms and molecules. It provides a clear visual link between theoretical models and experimental observation.

• Observing the emission spectrum of iodine
• Supporting lessons on atomic and molecular structure
• Demonstrating electron excitation and emission
• Reinforcing understanding of spectroscopy and quantum physics
• Ideal for teacher demonstrations and advanced student study

Accurate, reliable, and designed for advanced education, the Spectrum Tube – Iodine is an essential teaching aid for delivering high‑quality spectroscopy demonstrations in the school physics laboratory.