Question

what is sulphuric anhydride and explain its structure.

Answer 1

Hello!

Sulphuric Anhydride is the chemical compound with the formula SO₃

• Boiling point : 45 °C

• Melting point : 16.9 °C

• Density : 1.92 gcm⁻³

• Molar Mass : 80.066 g/mol

• Appearance : Colourless - White

✓ STRUCTURE :-

It's the polymer [ S = O₂ (μ-O) ] ₙ.
Each end of the polymer is terminated with OH groups. 

β-SO₃, like the alpha form, is fibrous but of different molecular weight, consisting of an hydroxyl-capped polymer, but melts at 32.5 °C

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