alum background

alum

/ˈæl.əm/ /əˈlʌm/

Illustration alum - Image 1

noun

ミョウバン

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).

Examples :

"The potter used alum to help set the dye and make the colors brighter on the clay pots. "

陶芸家は、染料を定着させ、粘土の壺の色を明るくするためにミョウバンを使用した。

compound substance chemistry material medicine industry science

Illustration alum - Image 1

noun

ミョウバン

Any similar double sulphate in which either or both of the potassium and aluminium is wholly or partly replaced by other univalent or tervalent cations.

Examples :

"The chemistry student identified the unknown crystal as an alum, noting its composition included sulfate and a mix of aluminum and potassium ions, characteristic of this class of double salts. "

化学の学生は、未知の結晶をミョウバンと特定し、その組成には硫酸塩とアルミニウムとカリウムイオンの混合物が含まれており、この種の複塩の特徴であると指摘した。

compound substance chemistry material science

Illustration alum - Image 1

verb

ミョウバンに浸す, ミョウバンで処理する

To steep in, or otherwise impregnate with, a solution of alum; to treat with alum.

Examples :

"To strengthen the fabric, the seamstress alummed the delicate silk. "

生地を強くするために、仕立て屋は繊細なシルクをミョウバンで処理しました。

chemistry substance material process

Illustration alum - Image 1

noun

卒業生, 同窓生

(shortening) A past attendee or graduate (of either gender) of a college, university or other educational institution.

Examples :

""My father is an alum of Harvard University, graduating in 1985." "

私の父はハーバード大学の卒業生で、1985年に卒業しました。

person education group organization past achievement