English Dictionary

Baldwin's phosphorus

名詞

廃用 不可算名詞

(obsolete, inorganic chemistry) A poorly-characterized phosphorescent substance obtained by heating calcium nitrate.

日本語の意味

（旧用語、無機化学）カルシウム硝酸塩を加熱して得られる、性質が十分に解明されていない蛍光物質

Baldwin's phosphorus emitted a faint green glow when the museum curator opened the old chemist's trunk.

博物館の学芸員が古い化学者のトランクを開けると、硝酸カルシウムを加熱して得られる性質のはっきりしない燐光性物質がかすかな緑色の光を放った。

意味（1）

(obsolete, inorganic chemistry) A poorly-characterized phosphorescent substance obtained by heating calcium nitrate.

Baldwin's phosphorus is prepared by melting nitrate of lime in a crucible or ladle for about ten minutes; it is then poured into an iron pot, or mould, previously heated, and has the property, like Canton's phosphorus, of absorbing light when exposed to the sun, and emitting it when taken into a darkened room.