煅制白矾温度不宜超过A.200℃ B.230℃ C.260℃ D.315℃ E.350℃

作者: tihaiku 人气: - 评论: 0

问题煅制白矾温度不宜超过

选项 A.200℃ B.230℃ C.260℃ D.315℃ E.350℃

答案 C

解析本题考查白矾的炮制要点。白矾在260℃左右煅制时脱水基本完成．300℃时开始分解。

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