Fusion point of a basic refractory material is__________________?
Correct answer: A. Reduced by the addition of acid oxides
- A. Reduced by the addition of acid oxides
- B. Increased by the addition of acid oxides
- C. Not affected by the addition of acid oxides
- D. Always less than 1000°C
Explanation
Adding acidic oxides to a basic refractory can form lower-melting compounds or eutectics, thereby reducing its fusion temperature. Basic refractories are therefore damaged by acidic slags.
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