The major component of zinc phosphate cement is_____________?
Correct answer: A. Zinc oxide
- A. Zinc oxide
- B. Phosphoric acid
- C. Zinc
- D. None of the above
Explanation
Zinc phosphate cement powder is composed mainly of zinc oxide, with smaller amounts of magnesium oxide and other modifiers. Phosphoric acid is the principal component of the liquid, not the cement powder.
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