Silver cyanide. A white powder obtained by adding an aqueous solution of potassium cyanide to an aqueous solution of silver nitrate, washing the resulting precipitate with water and drying. It gradually discolors and decomposes when exposed to light. When heated in the absence of air, it decomposes, releasing cyanide at temperatures above 320°C. It is insoluble in ethanol (ethyl alcohol) and dilute acids. It dissolves in hot concentrated nitric acid to form a double salt with silver nitrate. It dissolves in concentrated aqueous ammonia and sodium thiosulfate. It dissolves in alkali cyanide, forming a cyano complex salt. It is toxic. [Nakahara Katsunori] [Supplementary Material] |Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend |
銀のシアン化物。硝酸銀の水溶液にシアン化カリウム水溶液を加え、生じた沈殿を水で洗って乾燥させると得られる白色の粉末。光によって徐々に変色して分解する。空気を断って熱すると分解し、320℃以上でシアンを発生する。エタノール(エチルアルコール)、希酸に不溶。熱濃硝酸には溶けて硝酸銀との複塩をつくる。濃アンモニア水、チオ硫酸ナトリウムには溶ける。シアン化アルカリにはシアノ錯塩をつくって溶ける。有毒である。 [中原勝儼] [補完資料] |出典 小学館 日本大百科全書(ニッポニカ)日本大百科全書(ニッポニカ)について 情報 | 凡例 |
This term is used to include not only the wages th...
The protagonist of the fairy tale "Joruri Mon...
A type of art material used in Western painting f...
… [Avant-garde and French animation] In France, a...
A fish of the family Icefish (illustration) in the...
Year of death: 5/7/1627 (6/20/1627) Year of birth:...
...It is eaten grilled with salt, but it is not v...
1927-2002 A screenwriter from the late Showa to H...
1491‐1556 Founder of the Society of Jesus. Baptize...
These minerals are subject to the Mining Act, and...
Also called Yuuke or Michiura. It is the act of g...
This mountain is located in the north-central par...
…A general term for arthropods in the order Scolo...
A private university in Chicago, Illinois, USA. F...
…After Toyotomi Hideyoshi, the Edo Shogunate appo...