Last Updated
：2025/11/20
alum
IPA(Pronunciation)
Noun
countable
uncountable
Japanese Meaning
染色や鞣し、特定の医薬品に利用される収れん作用を持つ塩。日本語では一般的に『明礬（みょうたん）』と呼ばれる化学物質です。 / 化学的には、カリウムとアルミニウムの二重硫酸塩（K₂SO₄·Al₂(SO₄)₃·24H₂O）として知られ、染色・鞣しの際の媒介剤や収斂剤として使用されます。
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An astringent salt, usually occurring in the form of pale crystals, much used in the dyeing and tanning trade and in certain medicines, and now understood to be a double sulphate of potassium and aluminium (K₂SO₄·Al₂(SO₄)₃·24H₂O).
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alum
The dyers used alum to fix the color on the wool before rinsing it.
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The dyers used alum to fix the color on the wool before rinsing it.
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