Green Chemistry

CONTENTS OF CURRICULUM UNIT 09.05.03

  1. Unit Guide
  1. Overview
  2. Objectives
  3. Background
  4. Strategies
  5. Activities
  6. Annotated Bibliography
  7. Resource Bibliography
  8. Delaware State Standards 44 and Implementation 45 - Appendix A
  9. Typology Classification of Plastics, Density and Examples of Use of Each 52 - Appendix B
  10. Market Price of Recycled Items as of July 9, 2009 53 - Appendix C
  11. Materials Delaware Solid Waste Authority Collects and Recycles 54 - Appendix D
  12. Phase Change Graphs for Aluminum, Steel, Iron, and Tin 55 - Appendix E
  13. Endnotes

It's Not Waste: Teaching Recycling through Density, Phase Change and Solubility

Victoria Lyn Deschere

Published September 2009

Tools for this Unit:

Typology Classification of Plastics, Density and Examples of Use of Each 52 - Appendix B

  1. Polyethylene tetra phthalate (PET): 1.38-1.39 g/cm 3 Soft drink bottles
  2. High Density Polyethylene (HDPE): 0.94-0.96 g/cm 3 Milk jugs and detergent bottles
  3. Vinyl/Polyvinyl Chloride (PVC): 1.20-1.42 g/cm 3 Durable construction products
  4. Low Density Polyethylene (LDPE): 0.9-0.93 g/cm 3 Grocery bags
  5. Polypropylene (PP): 0.9-0.91 g/cm 3 Durable fibers and diaper liners
  6. Polystyrene (PS): 1.05-1.07 g/cm 3 Styrofoam

Other common recyclable plastics

Polycarbonate (PC): 1.2 g/cm 3 Bulletproof glass and Compact Discs

Acrylonitrile Butadiene Styrene (ABS): 1.02-1.17 g/cm 3 Automotive parts and toys

Comments:

Victor Joseph

September 30, 2014 at 1:08 pm

Appendix-E of above article

The graph of Al, Fe,Sn & steel phase change temperature T in centigrad vs Time. The time axis is in what units hr, minutes, seconds or days?

Brudvig Gary

October 2, 2014 at 12:54 pm

. It's Not Waste: Teaching Recycling through Density, Phase Change and Solubility

The time axis is arbitrary because the time required for the phase changes will depend on the size of each sample and the rate that heat is applied.

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