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'''Viscose''' is a viscous organic liquid used to make [[rayon]] and [[cellophane]]. [[Cellulose]] from [[wood]] or [[cotton]] fibres is treated with [[sodium hydroxide]], then mixed with [[carbon disulphide]] to form cellulose xanthate, which is dissolved in more sodium hydroxide. The resulting viscose is extruded through a slit to make [[cellophane]], or through a spinneret to make viscose [[rayon]] (sometimes simply called '''viscose'''). |
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The process for manufacturing viscose was discovered by three British chemists, Charles Cross, Edward Bevan and Clayton Beadle, in [[1891]]. Viscose is becoming less common because of the polluting effects of carbon disulphide and other by-products of the process. |
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[[it:Viscosa]] |
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[[Category:Textiles]] |
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Latest revision as of 23:46, 13 August 2020
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