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Production of dyes from chemical reactions

Production of dyes from chemical reactions

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All Class Clips content is available to watch on mobile, tablet and desktop devices on our new Knowledge & Learning BETA website.

Key Info
  • Production of dyes from chemical reactions
  • Duration: 03:09
  • Chemical reactions are used to produce different colours of dye to change the colour of a white football kit. Although we can now choose from a wide range of colours this hasn't always been the case and one type of yellow dye was once produced from cows' urine. An expert on dyes explains how chemists have discovered ways of making almost any colour from chemical reactions and we see the presenter make an orange dye from two colourless chemicals. This clip has subtitles available in Flash.
  • Subject:



    Chem: Chemical Reactions

  • Keywords: chemical reaction, colour, dye, sodium chloride, subtitled
Ideas for use in class
  • Use this clip to introduce useful and non-useful chemical reactions before brainstorming or researching other kinds of useful reactions.
Background details
  • Clip language : English
  • Aspect ratio : 4x3

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