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Rayon from Dryer Lint: A Demonstration

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Michael A. Knopp

Miami University Middletown, 4200 E. University Blvd, Middletown, OH 45042

J. Chem. Educ., 1997, 74 (4), p 401

DOI: 10.1021/ed074p401

Publication Date (Web): April 1, 1997

Section:

History, Education, and Documentation

Abstract

In this demonstration, ordinary household dryer lint from the laundering of cotton items is stirred into the traditional Schweizer reagent mixture, a saturated solution of copper (II) carbonate in concentrated ammonium hydroxide. Any insoluble material (i.e. hair) is removed with a glass rod. The resulting deep blue viscous solution is taken up in an eye dropper and extruded into a 190 x 100 mm glass recrystallizing dish, which contains a dilute (3M) solution of sulfuric acid. Threads of rayon several cm in length can be thus formed. These threads are best viewed by the audience on an overhead projector. The sulfuric acid solution and threads are disposed of in compliance with local environmental regulations.

Keywords (Audience):

High School / Introductory Chemistry

Keywords (Domain):

Demonstrations

Keywords (Feature):

Filtrates and Residues

Keywords (Subject):

Polymerization

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This article has been cited by 2 ACS Journal articles (2 most recent appear below).

Plants and Chemistry: A Teaching Course Based on the Chemistry of Substances of Plant Origin
Katia Andreoli , Franco Calascibetta , Luigi Campanella , Gabriele Favero and Francesca Occhionero
Journal of Chemical Education2002 79 (8), 976
- Plants and Chemistry: A Teaching Course Based on the Chemistry of Substances of Plant Origin
  Katia Andreoli , Franco Calascibetta , Luigi Campanella , Gabriele Favero and Francesca Occhionero
  Journal of Chemical Education2002 79 (8), 976
  Over the past few years, we developed an idea about the teaching of chemistry by determining the links between theory and the real world. The principles, concepts, and experimental procedures of chemistry were illustrated through an original approach ...
  Abstract | Hi-Res PDF | PDF w/ Links
Investigating the Cuprammonium Rayon Process in a High School Laboratory
Lauren J. Pickard and Mary E. Harris
Journal of Chemical Education1999 76 (11), 1512
- Investigating the Cuprammonium Rayon Process in a High School Laboratory
  Lauren J. Pickard and Mary E. Harris
  Journal of Chemical Education1999 76 (11), 1512
  We have found the cuprammonium rayon process to be an excellent system for high school independent study. Meeting twice a week provided time for the student-teacher investigation to result in a productive year of study. One can study the shift of the ...
  Abstract | Hi-Res PDF | PDF w/ Links