氟锑酸是一种无机化合物，化学式为HSbF6，是氢氟酸和五氟化锑反应后的产物，属于超强酸。 SbF5能与F-形成正八面体形阴离子SbF6-。 氢离子能自由运动，几乎不受束缚，因此该物质有强酸性。 比纯硫酸要强2×1019倍，为已知酸性最强的物质。 氟锑酸属于超强酸性体系。

Fluoroantimonic acid is the strongest superacid based on the measured value of its Hammett acidity function (H 0), which has been determined for various ratios of HF:SbF 5. The H 0 of HF is −15. [ 5 ]

Antimony pentafluoride is the inorganic compound with the formula Sb F 5. This colourless, viscous liquid is a strong Lewis acid and a component of the superacid fluoroantimonic acid, formed upon mixing liquid HF with liquid SbF 5 in 1:1 ratio. It is notable for its strong Lewis acidity and the ability to react with almost all known compounds. [4]

氢氟酸（hf）和五氟化锑（sbf 5 ）反应强烈放热。 HF会释放质子H + ，然后 氟离子 F − 会与SbF 5 形成 八面体 型的SbF 6 − 阴离子。 SbF 6 − 是 非配位阴离子 ， 亲核性 和 碱性 都很弱。

2018年10月1日 · In superacid, such as HF/SbF 5, functionalized organic molecules can be (poly)protonated to deliver cationic species which can react with very poor nucleophiles. This superelectrophilic activation can be applied to the development of …

2010年1月15日 · The synthesis of benzofused sultams and/or fluorinated sulfonamides, starting from N-allylic sulfonamides, was performed in superacid HF/SbF 5, through superelectrophilic activation. A dramatic effect of superacid composition on the selectivity of the reaction was shown and applied to the synthesis of cyclic 4-aminobenzenesulfonamides.

1991年9月1日 · HF-SbF5 mixtures are superacidic and can be used for a-variety of synthetic and catalytic applications in organic chemistry. This work has investigated the ability of nickel, Inconel 600, iron, aluminium, titanium and copper to contain such media, using electrochemical techniques, surface analysis and reactions between the metals or their ...

2025年1月27日 · HF/SbF5 is an excellent medium for the preparation of alkylidene oxonium salts.1. In the fluorination of organic Compounds, see the monograph Preparation, Properties and Technology of Fluorine and Organic Fluoro Compounds, C. Slesser, S. R. Schram, Eds. (McGraw-Hill, New York, 1951) 868 pp.

2013年4月24日 · The selective synthesis of tetrahydroquinolines and fluorinated arylamines was performed in superacid HF/SbF 5 through a superelectrophilic ammonium–carbenium activation process. This anti-Markovnikov oriented reaction was applied to the straightforward synthesis of highly valued (fluorinated) nitrogen-containing heterocyclic compounds.

hf/sbf5是制备次烷基氧盐的优良介质。 生产方法 向装有气体导入管、回流冷凝器、温度计套管的铝制反应器中，加入五氯化锑600g，使回流冷凝器的温度保持在-45℃。