Model plaster (white) used to cast study models before mixing with water, is largely composed of____________?
A. CaO
B. CaCO3
C. (CaSO4)2-½H2O
D. CaSO4-2H2O
A. CaO
B. CaCO3
C. (CaSO4)2-½H2O
D. CaSO4-2H2O