Percentage of tin in low copper alloy is______________?
Correct answer: C. 26-28%
- A. 30-35%
- B. 13-32%
- C. 26-28%
- D. 22-30%
Explanation
Low-copper amalgam alloy typically contains about 26–28% tin, along with approximately 65–70% silver and 2–5% copper. Tin is the principal component that reacts with mercury to form the gamma-2 phase.
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