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Tie Dye

Tie Dye. Chemistry. Glucose. 6 Carbon (black) 12 Hydrogen (yellow) and 6 Oxygen (red) atoms Find the three glucose molecules on your handout Plants take carbon dioxide and water and use it to make glucose during photosynthesis. glucose. Cellulose.

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Tie Dye

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  1. Tie Dye Chemistry

  2. Glucose • 6 Carbon (black) 12 Hydrogen (yellow) and 6 Oxygen (red) atoms • Find the three glucose molecules on your handout • Plants take carbon dioxide and water and use it to make glucose during photosynthesis

  3. glucose

  4. Cellulose • Made from many glucose molecules hooked together • The chemical reaction is a dehydration synthesis (condensation reaction) because water is formed when each glucose is hooked on to the growing chain.

  5. Cellulose

  6. Tie Dye Chemistry • Fiber reactive process • Dye molecules react with any –OH • How many -OH are available on the three glucose molecules on your handout? Circle every –OH molecule now.

  7. Generic Dye molecule attached to a Cellulose molecule

  8. Yellow Dye molecule – circle on your handout where it attaches to the –OH on the cellulose shirt

  9. Tie Dye Procedure • Shirts are presoaked in soda ash (basic) • The basic solution helps attract dye molecules to –OH • Protection: gloves, aprons • Clean your space first!

  10. Folding shirt • Wring out shirt • Lay flat on table • Grab where the center of the spiral will be • Twist the fabric • Hold the twisted fabric with 3 rubber bands

  11. Dying shirt • 6 colors available • Work with one at a time • Color each wedge a different color • Color the back the same as the front • DO NOT USE TOO MUCH DYE!

  12. Finishing • Look in the folds to see how much white is left • When you’re done, wrap the shirt in paper towels • Place in a plastic bag • Put the first bag and your directions into a second plastic bag • Label the bag with your name

  13. At Home • The dye needs up to seven days to react completely • Keep the bag in your house, and do not unwrap until you are ready to wash your shirt • Wash your shirt 5-7 days after it is dyed for best results

  14. Washing Shirts • Fill the washing machine with hot water • In a sink, unwrap the shirt and take off the rubber bands • Rinse the shirt in cold water until all the excess dye is rinsed out • Wash the shirt using dish soap or Woolite • Dry shirt in the dryer – this sets the dye • Wear your shirt!

  15. Spiral

  16. Spiral

  17. Multi Spiral

  18. Multi Spiral

  19. Stripes

  20. Stripes

  21. Stripes

  22. Stripes

  23. Stripes

  24. Fire

  25. Gummi Bear Oxidation • Gummi bears are carbohydrates • The energy released is from chemical bonds • Sugar + oxygen react to make water and carbon dioxide • Left over black is carbon • Left over white is potassium chlorate

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