连二亚硝酸银

连二亚硝酸银是一种离子化合物，化学式为，或表示为()2[ON=NO]2−。它是难溶于水和有机溶剂（如DMF、DMSO）的亮黄色固体。Trambaklal Mohanlal Oza, Rajnikant Hariprasad Thaker (1955), "The Thermal Decomposition of Silver Hyponitrite". Journal of the American Chemical society, volume 77, issue 19, pages 4976–4980. G. David Mendenhall (1974), "Convenient synthesis of silver hyponitrite". Journal of the American Chemical society, volume 96, issue 15, page 5000. 

制备
该化合物最早于1848年被报道。(1848), "On the formation of hyponitrite of silver". Philosophical Magazine Series 3, XIII. Intelligence and miscellaneous articles, volume 33 (1848), issue 219, page 75. 

它可由连二亚硝酸钠和硝酸银在水溶液中反应得到：
 Na2N2O2 + 2AgNO3 → Ag2N2O2 + 2NaNO3
过量的硝酸银会生成棕色或黑色沉淀。

钠汞齐还原硝酸银也能得到连二亚硝酸银。Masatsugu Sekiguchi, Michio Kobayashi, Hiroshi Minato (1974), "Reactions between Acyl Halides and Silver Hyponitrite". Bulletin of the Chemical Society of Japan, volume 45, issue 9, pages 2932-2934. 
 2 AgNO3 + 2 NaNO2 + 4 Na[Hg] + 2 H2O → Ag2N2O2 + 2 NaNO3 + 4 NaOH + 4 Hg无机化学丛书 第四卷 氮 磷 砷分族. 科学出版社. pp 122-123. 5.5 连二亚硝酸

参考文献

Category:连二亚硝酸盐
Category:银化合物
Category:1840年代发现的物质