Making Comparisons of Activated Bleaching Earth

Are you interested in making comparisons of activated bleaching earth (A B E)? A B E has strong bleaching power and this power in turn allows A B E to absorb color. Red as well as yellow are the main colors that it absorbs. A B E 's most important function is that of bleaching power.

When you compare A B E the thing that strikes you is that fuller's earth of a good quality is very good at bleaching. This bleaching power of fuller's earth is used for absorbing color in oil refinery processes.

When comparing the power of fuller's earth, it is important to take a closer look at what contributes to this power of A B E. This bleaching power depends to a great extent on the surface area which in turn is measured in terms of m2/gram. This surface area is measured with the help of a tool called the B E T analyzer. This tool was created by Stephen Brunauer and Paul Hugh Emmett as well as Edward Teller.

At some oil refineries, the red color is the one that is most easily absorbed by A B E. At other refineries, the yellow color is the one that is most absorbed by fuller's earth. The equipment that is used to measure the amount of red or yellow color absorbed is known as a tintometer or colorimeter. Lovibond is the best brand of tintometer or colorimeter.

When comparing fuller's earth and its bleaching power, you can use Lovibond to measure the red color. This measurement will be 80. To make the comparison you will need to start off by filling a suitable vessel (made from glass) with some crude palm oil that should be measured as much as fifty milliliters. Heat this up till the temperature reaches one hundred degrees Celsius and then enter about two percent of fuller's earth into the Crude Palm oil. Stir this continuously for approximately fifteen minutes and maintain the temperature at between one hundred and ten and one hundred and twenty degrees Celsius.

Filter this mixture through a filter paper and measure the amount of oil that has been filtered. Use Lovibond to measure the oil. This should give you a reading of 20. To find out the bleaching power of activated bleaching earth you will need to perform the following calculation: eighty minus twenty divided by eighty and multiplied by hundred percent = 75%

You can also test other activated bleaching earth while using the same Crude Palm Oil and this will allow you to make comparisons of activated bleaching earth.