Detection reaction for unsaturated fats (7)
Image
Photo:
Reaction products without blue coloration (olive oil) on the left and with blue coloration (butter and iodine/starch complex) on the right.
Type of media:
Image (149.8 kByte)
Last update:
2017-07-11
License:
This medium is made available under a CC BY-SA 4.0 international license.
What does this mean?
How to reference this medium
This medium is made available under a CC BY-SA 4.0 international license.
What does this mean?
How to reference this medium
Description:
Left: A lack of blue coloration means that an iodine/starch complex is not present. Therefore, the available iodine was taken up by unsaturated fats. Consequently, olive oil contains unsaturated fats.
Right: The presence of blue coloration (after about 3 minutes and after shaking) means that an iodine/starch complex has formed. Therefore, the available iodine was not taken up by unsaturated fats. Consequently, butter does not contain unsaturated fats.
Right: The presence of blue coloration (after about 3 minutes and after shaking) means that an iodine/starch complex has formed. Therefore, the available iodine was not taken up by unsaturated fats. Consequently, butter does not contain unsaturated fats.
Related media:
Detection reaction for unsaturated fats (Interactive)
Detection reaction for unsaturated fats (1) (Image)
Detection reaction for unsaturated fats (2) (Image)
Detection reaction for unsaturated fats (3) (Image)
Detection reaction for unsaturated fats (4) (Image)
Detection reaction for unsaturated fats (5) (Image)
Detection reaction for unsaturated fats (6) (Image)
Detection reaction for unsaturated fats (1) (Image)
Detection reaction for unsaturated fats (2) (Image)
Detection reaction for unsaturated fats (3) (Image)
Detection reaction for unsaturated fats (4) (Image)
Detection reaction for unsaturated fats (5) (Image)
Detection reaction for unsaturated fats (6) (Image)
Learning resource type:
Experiment; Illustration
Subjects:
Chemistry
Grade levels:
Grade 7 to 9
School types:
Middle/high school
Keywords:
Chemical compound; Chemical reaction; Fats
Bibliography:
Siemens Stiftung Media Portal
Author:
Christian Herdt
Rights holder:
© Christian Herdt/Siemens Stiftung 2016