What is the softening point of western montmorillonite?
A. 800°F – 1150°F
B. 1200°F – 1650°F
C. 1750°F – 2100°F
D. 2100°F – 2450°F
Answer:D
What is the softening point of western montmorillonite?
A. 800°F – 1150°F B. 1200°F – 1650°F C. 1750°F – 2100°F D. 2100°F – 2450°F