2.2. KOW: Octanol-Water Partition Constant

Try these first

1. 1.

   What does KOW stand for?

   Hint

   Look at the first part: Octanol.

2. 2.

   Is a high KOW value indicative of hydrophobicity or hydrophilicity?

   Hint

   Think about which phase the chemical prefers.

3. 3.

   What does KOW indicate about a chemical's behavior in the environment?

   • It indicates water solubility.
   • It indicates preference for octanol.
   • It measures chemical reactivity.

   Hint

   Think about what octanol represents in this context.

4. 4.

   True or False: A low KOW means a chemical is hydrophobic.

   • True
   • False

   Hint

   Recall what hydrophobic means.

5. 5.

   A newly synthesized chemical has a KOW value of 6. Predict its behavior in aquatic environments and its potential for bioaccumulation.

   Hint

   Refer to the definitions of KOW and bioaccumulation discussed earlier.

6. 6.

   You measured a chemical's presence in two different soils with distinct organic carbon contents. How would you interpret the difference in its KOW values?

   Hint

   Think about how organic carbon composition can alter chemical behavior.