The fiber is used to make textiles for clothing and other purposes. Rayon production involves solubilizing the cellulose to allow the fibers to be formed into the desired shape. The three most common methods of solubilization are the cuprammonium process, using an ammoniacal solution of copper salts, not currently used; The viscose process, using alkali and carbon sulfide, is currently the most common; and the lyocell process, using amine oxides. The latter avoids the neurotoxic carbon sulfide of the Viscous process but is more expensive.
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