Explosions, peroxides and

Explosive peroxides and must be stabilized (it should be distilled under nitrogen, very carefully checking the actual boiling point)... 

Peroxide may also be removed by shaking with an aqueous solution of sodium sulphite or with solid tin(n) chloride (see 11. Propan-2-ol) or by passage through a column of alumina. It is worthy of note that all dialkyl ethers have a tendency to form explosive peroxides and they should be routinely tested before further purification leading to a final distillation process is attempted. 

At present there is one exception to the above situation. Cellulose is readily soluble in N-methyl morjiioline N-oxide (NMMO) and so-called lyocell fibers are being spun from solutions of cellulose in this solvent However, NMMO, being an ether readily forms explosive peroxides and must be properly stabilized before use. 

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