Methods of Extraction

Methods of Extraction
The extraction methods of vegetable dyes basically depends on medium
in which the dye is extracted. There are mainly four methods used in
extraction of natural dyes.

i. Aqueous Method:

Boil known amount dyestuff in 100 ml. of soft water at 100 C.
Filter the dye solution
Record the optical density
ii Alkaline Method:
Prepare 1% alkaline solution with addition of 1 g. Socium
carbonate/Sodium hydroxide in 100 ml. of water.
Enter the dye material and boil at 100 C.
Filter the dye solution
Record the optical density
ii Acidic Method
Prepare 1% of acidic solution by adding 1 ml. of HCL in 100 ml. of
Soft water.
Enter the dye material and boil at 100 C.
Filter the dye solution
Record the optical density
iv. Alcoholic Method
Add 50 ml. of alcohol to 50 ml. of water
Enter the dye material and boil
Filter the dye solution

5 thoughts on “Methods of Extraction

  1. madzz November 26, 2008 / 11:12 am

    halooo sob gimana kabarx kok jarang maen ke blog ku

  2. solar power chargers Juni 19, 2013 / 12:46 pm

    Being a Newcomer, I’m always searching online for articles that can assist myself. Thank you so much, a wonderful job!

  3. I continue hearing the news talk about obtaining free online grant
    applications thus I have been looking all around for the ideal site to
    get one. Wonderful Job, Chow!

  4. cellphonecharger2.wordpress.com Juli 15, 2013 / 1:44 pm

    Superb site you have here but I was curious if you knew of any user discussion forums that cover the same topics talked about here?
    I’d really love to be a part of group where I can get feed-back from other knowledgeable people that share the same interest. If you have any recommendations, please let me know. Bless you!

  5. Sandra Juli 16, 2013 / 11:28 pm

    Hi! Do you know if they make any plugins to safeguard against hackers?
    I’m kinda paranoid about losing everything I’ve worked hard on.
    Any recommendations? It’s So much appreciated!

Tinggalkan Balasan

Isikan data di bawah atau klik salah satu ikon untuk log in:

Logo WordPress.com

You are commenting using your WordPress.com account. Logout / Ubah )

Gambar Twitter

You are commenting using your Twitter account. Logout / Ubah )

Foto Facebook

You are commenting using your Facebook account. Logout / Ubah )

Foto Google+

You are commenting using your Google+ account. Logout / Ubah )

Connecting to %s