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A Simpler Small Scale Method for the Identification of Plastics

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Guy E. Anderson

Bald Eagle Area High School, Wingate, PA 16823

J. Chem. Educ., 1996, 73 (8), p A173

DOI: 10.1021/ed073pA173

Publication Date (Web): August 1, 1996

Abstract

Different plastics can be characterized by measuring their densities. In an ealier Journal issue [J. Chem. Educ. 1991, 68, 349], Kolb and Kolb presented a method for separating and identifying plastics that required the preparation of a series of solutions with different known densities. The procedure described here simplifies the preparation by requiring only one solution.

Keywords (Audience):

High School / Introductory Chemistry

Keywords (Domain):

Polymer Chemistry

Keywords (Feature):

The Microscale Laboratory

Keywords (Pedagogy):

Hands-On Learning / Manipulatives

Keywords (Subject):

Microscale Lab

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This article has been cited by 3 ACS Journal articles (3 most recent appear below).

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  Richard H. Parker
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  An experimental procedure, using an apparatus that is easy to construct, was developed to incorporate a quantitative electrogravimetric determination of the solution nickel content into an undergraduate or advanced high school quantitative analysis ...
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A Novel, Simplified Scheme for Plastics Identification
Mary E. Harris, Barbara Walker
Journal of Chemical Education2010 87 (2), 147-149
- A Novel, Simplified Scheme for Plastics Identification
  Mary E. Harris, Barbara Walker
  Journal of Chemical Education2010 87 (2), 147-149
  In this Activity, students identify samples of seven types of recyclable plastic by using a flowchart scheme. The flowchart procedure includes making density comparisons of the plastic samples in water and alcohol and observing physical changes of plastic ...
  Abstract | Full Text HTML | Hi-Res PDF | PDF w/ Links
Floating Plastics: An Initial Chemistry Laboratory Experience
Enrique A. Hughes , Helena M. Ceretti and Anita Zalts
Journal of Chemical Education2001 78 (4), 522
- Floating Plastics: An Initial Chemistry Laboratory Experience
  Enrique A. Hughes , Helena M. Ceretti and Anita Zalts
  Journal of Chemical Education2001 78 (4), 522
  Chemists routinely prepare a great variety of solutions. Sometimes it is necessary to confirm that the intended product was obtained. This may be done by measuring physical properties such as absorbance, electrical conductivity, melting point, boiling ...
  Abstract | Hi-Res PDF | PDF w/ Links