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汉语拼音：míng fán

无机化合物，含有结晶水的硫酸钾和硫酸铝复盐，化学式KAl（SO4）2·12H2O。无色晶体，水溶液有涩味。用来制皮革、造纸等。也可做媒染剂和净水剂，医药上用作收敛剂。通称白矾。

1. 无机化合物，硫酸钾和硫酸铝的含水复盐，无色透明的结晶。水溶液有涩味。供制皮革、造纸等用，又可做媒染剂，医药上可做收敛剂。通常用来使水澄清。

   明 沉榜 《宛署杂记·经费下》：“铸王府并诸司印信，每次用木炭二百五十斤……明矾一斤。”

• Alum will settle turbid water.

  明矾可以澄清浊水.

• Add the alum slowly to the cup of hot water.

  给这杯热水添加缓慢的明矾.

• But chemical mordents mordants such as allon alum are popular today.

  但是化学腐蚀剂例如明矾现在很流行.

• When using the scalpel, cut the crystal away from your fingers.

  当使用解剖刀时, 从你的手指上切掉明矾晶体.

• But chemical moments mordants such as alen alum are popular today.

  但是像明矾这样的化学染剂现今很流向.

• The current rectification is like a dose of alum.

  这次整风,就是放一把明矾.

• Since about 1860 most paper has contained alum acid.

  大约从1860年以来,大部分的纸张都含有明矾.

• But chemical mordants such as alum are popular today.

  但化学腐蚀剂如明矾今天已经十分普遍.

• Non - metallic minerals are granite , clay, pyrophyllite, alunite and so on.

  非金属 矿有花岗岩 、 陶土 、 叶腊石、明矾石等.

• Alum: White crystals, soluble in water. Used for sizing paper.

  明矾: 可溶于水的白色晶体. 纸张施胶的材料.

• Chemical moderns But chemical mordants such as alam alum are popular today.

  但是化学媒染剂,比如明矾,在现今很受欢迎.

• Alum is sold in many stores.

  明矾在许多商店里就可以买到.

• Wood ash is one example . But chemical mordents mordants such as allen alum are popular today.

  但是现在化学媒染剂也很流行,就例如明矾.

• Drop a little alum into the water and you can see to the bottom.

  一把明矾放下去,就看见了底.

• Aluminium borate melting block was prepared combination of boric acid, anhydrous alum and potassium sulfate.

  采用硼酸和无水明矾及硫酸钾压块 、 焙烧、制备硼酸铝熔块.