Sodium Metabisulphite Pure 500g (Sodium Disulphite (V), Laboratory Reagent Grade)

Sodium Metabisulphite Pure 500g, also known as Sodium Disulphite (V), is a high‑quality Laboratory Reagent (LR) grade chemical supplied for use in educational science laboratories. This white crystalline powder is commonly used as a reducing agent and oxygen scavenger in controlled laboratory experiments and demonstrations.

Supplied in a convenient 500g container, this chemical is identified by CAS Number 7681‑57‑4 and does not require a UN classification. Sodium Metabisulphite is suitable for routine laboratory use when handled correctly and is widely used by teachers and laboratory technicians to support chemistry teaching across secondary schools and colleges.

Key Features

• Sodium Metabisulphite (Sodium Disulphite (V))
• Laboratory Reagent (LR) Grade
• 500g pack – suitable for school science departments
• CAS Number: 7681‑57‑4
• No UN classification
• White crystalline powder
• Acts as a reducing agent in chemical reactions

Ideal for School Science Lessons

Sodium Metabisulphite is commonly used in GCSE and A‑Level chemistry lessons, particularly when teaching redox chemistry and reaction types. Its predictable behaviour makes it suitable for supervised practical work and teacher‑led demonstrations.

• Demonstrating reduction reactions in redox chemistry
• Supporting lessons on oxidation and reduction processes
• Experiments involving oxygen removal or preservation
• Reinforcing understanding of chemical reactivity
• Supporting safe laboratory practice under COSHH guidance

Reliable and easy to handle under supervision, Sodium Metabisulphite is a valuable educational chemical that supports clear teaching of redox reactions while reinforcing safe working practices and good laboratory technique in school science environments.