四氟化鈮的化學式是NbF4,是黑色的晶體,不揮發,吸濕性很強,在潮濕空氣中它水解並完全轉化為NbO2F。
NbF4強烈地和水反應,生成棕色的溶液和組成未確定的棕色沉澱。NbF4在真空中加熱至275~325℃仍然是穩定的,但當溫度高於350℃它會迅速發生歧化反應,生成五氟化鈮和三氟化鈮:[2]
參考資料
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