Chemistry Project On Dyes For CBSE Class 12

Here is a Chemistry Project On Dyes For CBSE Class 12-Class XII




Chemistry Project Screenshot
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Some Lines From The Chemistry Project

Dyes


Dyes are colored substances which adhere to the surface of materials and are used to give color to paper, food stuffs, and various textiles such as cotton, wool etc.
Chemically a dye contains.
1) APPARATUS
 
2) CHEMICALS USED
Preparation Of
  •  WHITE Dyes
  • LIGHT GREEN Dyes
  • OXFORD BLUE Dyes
  • YELLOW Dyes
3)  RESULT
 

Dyes are colored substances which adhere to the surface of materials and are used to give color to paper, food stuffs, and various textiles such as cotton, wool etc.

Chemically a dye contains.

Some groups such as azo, anthraquinone which is responsible for the color of the dye.

Some groups such as-COOH, NHSSO3H which make the dye stick to the fabric by formation of some salt.

The dye fabrics appear to be colored because a particular dye absorbs radiation of some specific wave lengths from the visible region of electromagnetic radiation that fall on its surface. The remaining radiations of light are reflected. For example. If a dye absorbs the light in the wavelength region. Corresponding to red, then it would appear green which is the complementary color or red.

1) APPARATUS

Funnel, distilled water, filter paper, mortar.

2) CHEMICALS USED

White, sodium carbonate, lead nitrate, lead chromate.

Light green, copper sulphate, sodium hydrogen carbonate.

Oxford blue, phthalic anhydride, urea hydrated copper (II) chloride, ammonium or sodium molybdate.

Yellow, Potassium chromate, lead nitrate.

 

Do check for balanced equations & get the project signed by your chemistry teacher.

 Download_Chemistry practical.docx

Do check for balanced equations & get the project signed by your chemistry teacher.
 

Click here For Physics Class 12 CBSE Project


Chemistry Project On Dyes For CBSE Class 124.00/5 - 4 Votes




Further Reading:
http://en.wikipedia.org/wiki/Chemistry
http://en.wikipedia.org/wiki/Dyes
http://en.wikipedia.org/wiki/Cbse
http://en.wikipedia.org/wiki/Class

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Posted by: Prateek on October 6, 2011


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