Science Buddies: "Ask an Expert"

Sir,
I am xii th grade student completed my chemistry project on preparation of PARA RED DYE & FLUORESCENT DYE , i want to know that significance of para red dye & fluorescent dye pl help me to conclude the project , i have to submit the project by 04.11.2009

Hi,

Para Red is an azo dye mainly used in printing and dyeing texxtiles. Its use in food products is banned due to toxicity.

http://en.wikipedia.org/wiki/Para_Red

http://health.dailynewscentral.com/content/view/742/63

http://www.encyclopedia.com/doc/1P2-3982161.html

http://www.foodqualitynews.com/Product- ... -Red-tests

Here is a MSDS on Para Red:
http://www.coleparmer.com/catalog/Msds/09522.htm

See the year 1885 on this page:
http://www.indikaorganics.com/marketing ... -4197.html

Here is a book result for parqa red use in dyeing cotton:
http://books.google.com/books?id=B4chQz ... dye&f=true

Here is a book result on para red use in paints:
http://books.google.com/books?id=bdQVgK ... dye&f=true

And here is a mention of para red being used in color photography:
http://books.google.com/books?id=ac2n_9 ... dye&f=true


Unfortunately I do not know what you mean by Flourescent Dye. Many chemicals are fluorescent, so I cannot provide information on that half of your question. This does not appear to be a standard Science Buddies experimeent. If you can identify the second chemical, we will look into it.

Best of luck complete ling your project!

Best regards,,

Barrett Tomlinson