Podcast
Questions and Answers
What is the electrical property of the surface of clay minerals related to?
What is the electrical property of the surface of clay minerals related to?
Charge symbol and capacity
How do exchangeable cations affect the electronegativity of clay mineral surfaces?
How do exchangeable cations affect the electronegativity of clay mineral surfaces?
They render the mineral surfaces electronegative
What does Cation Exchange Capacity (CEC) measure?
What does Cation Exchange Capacity (CEC) measure?
Total number of cations exchanged from 1 kg clay minerals at pH 7
Which clay mineral has the largest CEC according to Table 1.1?
Which clay mineral has the largest CEC according to Table 1.1?
What usually leads to a higher CEC in clay minerals?
What usually leads to a higher CEC in clay minerals?
What kind of layer is formed when exchangeable cations dissociate from clay mineral surfaces and align around the mineral surfaces?
What kind of layer is formed when exchangeable cations dissociate from clay mineral surfaces and align around the mineral surfaces?
What happens to the surface of clay minerals under alkaline conditions?
What happens to the surface of clay minerals under alkaline conditions?
Explain the relationship between dispersity degree of kaolinite and its cation exchange capacity.
Explain the relationship between dispersity degree of kaolinite and its cation exchange capacity.
What determines the final electricity of clay minerals?
What determines the final electricity of clay minerals?
Define adsorptivity in the context of clay minerals.
Define adsorptivity in the context of clay minerals.
What are the two sources of electrical properties that influence the final electricity of clay minerals?
What are the two sources of electrical properties that influence the final electricity of clay minerals?
How does the dispersity degree of kaolinite affect its cation exchange capacity?
How does the dispersity degree of kaolinite affect its cation exchange capacity?
What type of clay mineral has the largest number of lattice substitutions?
What type of clay mineral has the largest number of lattice substitutions?
Where do lattice substitutions occur in illite?
Where do lattice substitutions occur in illite?
Why is the cation exchange capacity of illite lower than that of montmorillonite?
Why is the cation exchange capacity of illite lower than that of montmorillonite?
What are the two kinds of hydroxyl groups on the surfaces of clay minerals?
What are the two kinds of hydroxyl groups on the surfaces of clay minerals?
How can surface hydroxyl groups on clay minerals react under acidic conditions?
How can surface hydroxyl groups on clay minerals react under acidic conditions?
What happens to the electrical properties of clay minerals when surface hydroxyl groups react with H+ or OH−?
What happens to the electrical properties of clay minerals when surface hydroxyl groups react with H+ or OH−?
